Resolves: rhbz#1935987 - lasso implements and/or uses the deprecated SHA1 algorithm by default

This commit is contained in:
Jakub Hrozek 2021-06-24 21:10:57 +02:00
parent 312c072896
commit 2a7e323b5c
9 changed files with 1003 additions and 18 deletions

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@ -0,0 +1,104 @@
From 8b8fd22a168860c5034822472d1fb5745f8fa0f5 Mon Sep 17 00:00:00 2001
From: Jakub Hrozek <jhrozek@redhat.com>
Date: Wed, 16 Jun 2021 10:18:30 +0200
Subject: [PATCH] Fix lasso_query_sign HMAC other than SHA1 (#54037)
The switch clause was using SHA1 digests for all digest types when
signing. This obviously breaks verifying the signatures if HMAC-SHAXXX
is used and XXX is something else than 1.
---
lasso/xml/tools.c | 35 +++++++++++++++++++++++------------
tests/login_tests_saml2.c | 6 +++---
2 files changed, 26 insertions(+), 15 deletions(-)
diff --git a/lasso/xml/tools.c b/lasso/xml/tools.c
index 96d88a2c4..290fd55f2 100644
--- a/lasso/xml/tools.c
+++ b/lasso/xml/tools.c
@@ -594,22 +594,20 @@ lasso_query_sign(char *query, LassoSignatureContext context)
sigret_size = DSA_size(dsa);
break;
case LASSO_SIGNATURE_METHOD_HMAC_SHA1:
+ md = EVP_sha1();
+ sigret_size = EVP_MD_size(md);
+ break;
case LASSO_SIGNATURE_METHOD_HMAC_SHA256:
+ md = EVP_sha256();
+ sigret_size = EVP_MD_size(md);
+ break;
case LASSO_SIGNATURE_METHOD_HMAC_SHA384:
+ md = EVP_sha384();
+ sigret_size = EVP_MD_size(md);
+ break;
case LASSO_SIGNATURE_METHOD_HMAC_SHA512:
- if ((rc = lasso_get_hmac_key(key, (void**)&hmac_key,
- &hmac_key_length))) {
- message(G_LOG_LEVEL_CRITICAL, "Failed to get hmac key (%s)", lasso_strerror(rc));
- goto done;
- }
- g_assert(hmac_key);
- md = EVP_sha1();
+ md = EVP_sha512();
sigret_size = EVP_MD_size(md);
- /* key should be at least 128 bits long */
- if (hmac_key_length < 16) {
- critical("HMAC key should be at least 128 bits long");
- goto done;
- }
break;
default:
g_assert_not_reached();
@@ -645,6 +643,19 @@ lasso_query_sign(char *query, LassoSignatureContext context)
case LASSO_SIGNATURE_METHOD_HMAC_SHA256:
case LASSO_SIGNATURE_METHOD_HMAC_SHA384:
case LASSO_SIGNATURE_METHOD_HMAC_SHA512:
+ if ((rc = lasso_get_hmac_key(key, (void**)&hmac_key,
+ &hmac_key_length))) {
+ message(G_LOG_LEVEL_CRITICAL, "Failed to get hmac key (%s)", lasso_strerror(rc));
+ goto done;
+ }
+ g_assert(hmac_key);
+
+ /* key should be at least 128 bits long */
+ if (hmac_key_length < 16) {
+ critical("HMAC key should be at least 128 bits long");
+ goto done;
+ }
+
HMAC(md, hmac_key, hmac_key_length, (unsigned char *)new_query,
strlen(new_query), sigret, &siglen);
status = 1;
diff --git a/tests/login_tests_saml2.c b/tests/login_tests_saml2.c
index e331c07a7..e1d78b5b1 100644
--- a/tests/login_tests_saml2.c
+++ b/tests/login_tests_saml2.c
@@ -981,7 +981,7 @@ sso_initiated_by_sp(LassoServer *idp_context, LassoServer *sp_context, SsoCallba
lasso_release_gobject(sp_login_context);
}
-START_TEST(test07_sso_sp_with_hmac_sha1_signatures)
+START_TEST(test07_sso_sp_with_hmac_sha256_signatures)
{
LassoServer *idp_context = NULL;
LassoServer *sp_context = NULL;
@@ -990,7 +990,7 @@ START_TEST(test07_sso_sp_with_hmac_sha1_signatures)
/* Create the shared key */
key = lasso_key_new_for_signature_from_memory("xxxxxxxxxxxxxxxx", 16,
- NULL, LASSO_SIGNATURE_METHOD_HMAC_SHA1, NULL);
+ NULL, LASSO_SIGNATURE_METHOD_HMAC_SHA256, NULL);
check_true(LASSO_IS_KEY(key));
/* Create an IdP context for IdP initiated SSO with provider metadata 1 */
@@ -1640,7 +1640,7 @@ login_saml2_suite()
tcase_add_test(tc_spSloSoap, test04_sso_then_slo_soap);
tcase_add_test(tc_idpKeyRollover, test05_sso_idp_with_key_rollover);
tcase_add_test(tc_spKeyRollover, test06_sso_sp_with_key_rollover);
- tcase_add_test(tc_hmacSignature, test07_sso_sp_with_hmac_sha1_signatures);
+ tcase_add_test(tc_hmacSignature, test07_sso_sp_with_hmac_sha256_signatures);
tcase_add_test(tc_spLogin, test08_test_authnrequest_flags);
tcase_add_test(tc_ecp, test09_ecp);
tcase_add_test(tc_ecp, test10_ecp);
--
2.26.3

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@ -0,0 +1,129 @@
From f625eaa007fa3a1f6c846be0d70d26de33887714 Mon Sep 17 00:00:00 2001
From: Jakub Hrozek <jhrozek@redhat.com>
Date: Wed, 16 Jun 2021 10:28:53 +0200
Subject: [PATCH 2/7] tests: Move test08_lasso_key and
test07_saml2_query_verify_signature to SHA256 (#54037)
These tests use a hardcoded query and private key which makes it
unsuitable to make the tests use the configured default digest. Let's
just convert them to SHA256 unconditionally.
---
tests/random_tests.c | 46 ++++++++++++++++++++++----------------------
1 file changed, 23 insertions(+), 23 deletions(-)
diff --git a/tests/random_tests.c b/tests/random_tests.c
index c4fe85883..fa0367a3c 100644
--- a/tests/random_tests.c
+++ b/tests/random_tests.c
@@ -287,11 +287,11 @@ extern int lasso_saml2_query_verify_signature(const char *query, const xmlSecKey
START_TEST(test07_saml2_query_verify_signature)
{
/* normal query as produces by Lasso */
- const char query1[] = "SAMLRequest=fZHNasMwEIRfxeieWrYTtQjb4DgJBNqSNqWHXopw1kQgS6523Z%2B3r%2BxQSKDkOppvd2aVo%2BpML6uBjvYZPgZAir47Y1FODwUbvJVOoUZpVQcoqZH76uFepjdc9t6Ra5xhZ8h1QiGCJ%2B0si7argr0vxTLJ1guRilpU8%2FWtyKpNnaXrukoF32SCRa%2FgMfgLFvAAIQ6wtUjKUpB4wmc8nSX8hXOZ3Ml0%2FsaijfMNTIUK1iqDMGK7sFl%2Fwp9S5mNWOY3z5ZGol3GM%2FSLugNRBkcrjc0N%2ButJj6LNd7ZzRzc%2B4plN0ve6o6MOsnayyH6sggSUW7XfjsKdBGd1q8AX7JwOLKmPcV%2B1BUUhOfgAWl6dkl19W%2FgI%3D&RelayState=fake%5B%5D&SigAlg=http%3A%2F%2Fwww.w3.org%2F2000%2F09%2Fxmldsig%23rsa-sha1&Signature=wDxMSEPKhK%2FuU06cmL50oVx%2B7eP5%2FQirShQE%2BLv9pT3CrVwb6WBV1Tp9XS2VVJ2odLHogdA%2FE1XDW7BIRKYgkN8bXVlC2GybSYBhyn8bwAuyHs%2BnMW48LF%2FE5vFiZxbw8tMWUAktdvDuaXoZLhubX7UgV%2B%2BdRyjhckolpXTC9xuJdoHJUDF0vzzNm8xZs6LR7tjWUoz5CcjMJA3LVfWmpE5UjCyRmGbi9knGWHdY75CFtArD%2BNSkGeNx9xySrUlik6e57Zlodv4V9WBdeopAWskO58BA27GqTmnSLooeo%2FrtLxc1NZeuau11YxNzwl%2FvN8%2FQ5IsR3Xic8X1TaCCtwg%3D%3D";
+ const char query1[] = "SAMLRequest=fVHJasMwEP0Vo3tqRXY2YRvcOIFAl9CUHnopwpkkAllyNeMuf1%2FZaSG95PrmLfNmMlSNaWXZ0ck%2BwXsHSNFXYyzKYZCzzlvpFGqUVjWAkmq5K%2B%2FvpLjhsvWOXO0Mu5BcVyhE8KSdZdGmytnbNEmTBV%2Bli9ulKMt5KlbVfDkbizWfcVEmUxa9gMfAz1mQBxFiBxuLpCwFiIvxiE9H48mz4FJMZJq8sqgKHbRVNKhORK2MY71vJzFqezSw00f7GPLXztcw9M7ZQRmE3n0bFtQf8IcUWV9JDqm%2B%2BPXCYNUAqb0ilcWXhOx8zIdQe1NtndH1dx%2FTKLp%2BlR7R%2B9FhoMq2b4wEllhUGuM%2Blx4UhZ3Id8Di4pz5%2F2fFDw%3D%3D&RelayState=fake&SigAlg=http%3A%2F%2Fwww.w3.org%2F2001%2F04%2Fxmldsig-more%23rsa-sha256&Signature=Zfz3DE1VMV3thaV4FWpH0fkWsBMzAFJcfvVWAbo0a3cY48Et%2BXUcbr1nvOJUJmhGoie0pQ4%2BcD9ToQlSk7BbJSBCct%2FQQgn2QNkX%2F1lk4v8RU8p5ptJRJ2iPLb8nC6WZhs81HoihQePSuj7Qe5bRUsDKvnWMq6OkD%2Fe6YO77dMXregTcfmnkrXqRb2T6TFfqyOz9i0%2FjmISsmj%2F3kEEfUzVA4LEbeEgiJDj1hec4XW26gQTih53v0sYukq4Eyb4zS2jVd3apUUxUrjn1NUpr7Z7dZ7w5MQlgZ8aw1xFDE8BkxymvIjwf8ciyx6sfTKbCRsoS9E0pQB1vxvh6OMt1Ww%3D%3D";
/* SAMLRequest field was moved in the middle, Signature to the beginning and all & were
* changed to ; */
- const char query2[] = "Signature=wDxMSEPKhK%2FuU06cmL50oVx%2B7eP5%2FQirShQE%2BLv9pT3CrVwb6WBV1Tp9XS2VVJ2odLHogdA%2FE1XDW7BIRKYgkN8bXVlC2GybSYBhyn8bwAuyHs%2BnMW48LF%2FE5vFiZxbw8tMWUAktdvDuaXoZLhubX7UgV%2B%2BdRyjhckolpXTC9xuJdoHJUDF0vzzNm8xZs6LR7tjWUoz5CcjMJA3LVfWmpE5UjCyRmGbi9knGWHdY75CFtArD%2BNSkGeNx9xySrUlik6e57Zlodv4V9WBdeopAWskO58BA27GqTmnSLooeo%2FrtLxc1NZeuau11YxNzwl%2FvN8%2FQ5IsR3Xic8X1TaCCtwg%3D%3D;RelayState=fake%5B%5D;SAMLRequest=fZHNasMwEIRfxeieWrYTtQjb4DgJBNqSNqWHXopw1kQgS6523Z%2B3r%2BxQSKDkOppvd2aVo%2BpML6uBjvYZPgZAir47Y1FODwUbvJVOoUZpVQcoqZH76uFepjdc9t6Ra5xhZ8h1QiGCJ%2B0si7argr0vxTLJ1guRilpU8%2FWtyKpNnaXrukoF32SCRa%2FgMfgLFvAAIQ6wtUjKUpB4wmc8nSX8hXOZ3Ml0%2FsaijfMNTIUK1iqDMGK7sFl%2Fwp9S5mNWOY3z5ZGol3GM%2FSLugNRBkcrjc0N%2ButJj6LNd7ZzRzc%2B4plN0ve6o6MOsnayyH6sggSUW7XfjsKdBGd1q8AX7JwOLKmPcV%2B1BUUhOfgAWl6dkl19W%2FgI%3D;SigAlg=http%3A%2F%2Fwww.w3.org%2F2000%2F09%2Fxmldsig%23rsa-sha1";
- const char query3[] = "RelayState=fake%5B%5D&SAMLRequest=fZHNasMwEIRfxeieWrYTtQjb4DgJBNqSNqWHXopw1kQgS6523Z%2B3r%2BxQSKDkOppvd2aVo%2BpML6uBjvYZPgZAir47Y1FODwUbvJVOoUZpVQcoqZH76uFepjdc9t6Ra5xhZ8h1QiGCJ%2B0si7argr0vxTLJ1guRilpU8%2FWtyKpNnaXrukoF32SCRa%2FgMfgLFvAAIQ6wtUjKUpB4wmc8nSX8hXOZ3Ml0%2FsaijfMNTIUK1iqDMGK7sFl%2Fwp9S5mNWOY3z5ZGol3GM%2FSLugNRBkcrjc0N%2ButJj6LNd7ZzRzc%2B4plN0ve6o6MOsnayyH6sggSUW7XfjsKdBGd1q8AX7JwOLKmPcV%2B1BUUhOfgAWl6dkl19W%2FgI%3D&SigAlg=http%3A%2F%2Fwww.w3.org%2F2000%2F09%2Fxmldsig%23rsa-sha1&Signature=wDxMSEPKhK%2FuU06cmL50oVx%2B7eP5%2FQirShQE%2BLv9pT3CrVwb6WBV1Tp9XS2VVJ2odLHogdA%2FE1XDW7BIRKYgkN8bXVlC2GybSYBhyn8bwAuyHs%2BnMW48LF%2FE5vFiZxbw8tMWUAktdvDuaXoZLhubX7UgV%2B%2BdRyjhckolpXTC9xuJdoHJUDF0vzzNm8xZs6LR7tjWUoz5CcjMJA3LVfWmpE5UjCyRmGbi9knGWHdY75CFtArD%2BNSkGeNx9xySrUlik6e57Zlodv4V9WBdeopAWskO58BA27GqTmnSLooeo%2FrtLxc1NZeuau11YxNzwl%2FvN8%2FQ5IsR3Xic8X1TacCtwg%3D%3D";
+ const char query2[] = "Signature=Zfz3DE1VMV3thaV4FWpH0fkWsBMzAFJcfvVWAbo0a3cY48Et%2BXUcbr1nvOJUJmhGoie0pQ4%2BcD9ToQlSk7BbJSBCct%2FQQgn2QNkX%2F1lk4v8RU8p5ptJRJ2iPLb8nC6WZhs81HoihQePSuj7Qe5bRUsDKvnWMq6OkD%2Fe6YO77dMXregTcfmnkrXqRb2T6TFfqyOz9i0%2FjmISsmj%2F3kEEfUzVA4LEbeEgiJDj1hec4XW26gQTih53v0sYukq4Eyb4zS2jVd3apUUxUrjn1NUpr7Z7dZ7w5MQlgZ8aw1xFDE8BkxymvIjwf8ciyx6sfTKbCRsoS9E0pQB1vxvh6OMt1Ww%3D%3D;SAMLRequest=fVHJasMwEP0Vo3tqRXY2YRvcOIFAl9CUHnopwpkkAllyNeMuf1%2FZaSG95PrmLfNmMlSNaWXZ0ck%2BwXsHSNFXYyzKYZCzzlvpFGqUVjWAkmq5K%2B%2FvpLjhsvWOXO0Mu5BcVyhE8KSdZdGmytnbNEmTBV%2Bli9ulKMt5KlbVfDkbizWfcVEmUxa9gMfAz1mQBxFiBxuLpCwFiIvxiE9H48mz4FJMZJq8sqgKHbRVNKhORK2MY71vJzFqezSw00f7GPLXztcw9M7ZQRmE3n0bFtQf8IcUWV9JDqm%2B%2BPXCYNUAqb0ilcWXhOx8zIdQe1NtndH1dx%2FTKLp%2BlR7R%2B9FhoMq2b4wEllhUGuM%2Blx4UhZ3Id8Di4pz5%2F2fFDw%3D%3D;RelayState=fake;SigAlg=http%3A%2F%2Fwww.w3.org%2F2001%2F04%2Fxmldsig-more%23rsa-sha256";
+ const char query3[] = "SAMLRequest=fVHJasMwEP0Vo3tqRXY2YRvcOIFAl9CUHnopwpkkAllyNeMuf1%2FZaSG95PrmLfNmMlSNaWXZ0ck%2BwXsHSNFXYyzKYZCzzlvpFGqUVjWAkmq5K%2B%2FvpLjhsvWOXO0Mu5BcVyhE8KSdZdGmytnbNEmTBV%2Bli9ulKMt5KlbVfDkbizWfcVEmUxa9gMfAz1mQBxFiBxuLpCwFiIvxiE9H48mz4FJMZJq8sqgKHbRVNKhORK2MY71vJzFqezSw00f7GPLXztcw9M7ZQRmE3n0bFtQf8IcUWV9JDqm%2B%2BPXCYNUAqb0ilcWXhOx8zIdQe1NtndH1dx%2FTKLp%2BlR7R%2B9FhoMq2b4wEllhUGuM%2Blx4UhZ3Id8Di4pz5%2F2fFDw%3D%3D&RelayState=fake&SigAlg=http%3A%2F%2Fwww.w3.org%2F2001%2F04%2Fxmldsig-more%23rsa-sha256&Signature=rUJ%2B9wVSvdGSmZWGuGXgudAPV5KBxRfxRKraBWGIslBz2XreyNbQjSA47DhIfi%2Bxf0awIIGkKcieN3Qd5sqVn4wvFU8fsmfqrdtouYi46aKsj4W91N19TxJ%2BCgrP7ygVEGDaGdc%2BrCQC3%2FuoYTELXq0gYP7tHaXA%2FCaZHfx5Z159crpRxS6eabZ6BGf4ImxiKhE1FuYzKHeISEV1iSyvgx5%2FE8ydSO%2FSP6yA5Rck4JxVJWH6ImbswCVQ80qfqR4NoJ%2BxiZqilbDJnQaSKZggx%2FgjNVoX%2FMVW1FqEmgJNcZpSjNUQqy9u4veSllpxPc2aB%2FpiUjzpbq9XzyFDOQfkUQ%3D%3D";
/* sp5-saml2 key */
const char pkey[] = "-----BEGIN CERTIFICATE-----\n\
MIIDnjCCAoagAwIBAgIBATANBgkqhkiG9w0BAQUFADBUMQswCQYDVQQGEwJGUjEP\n\
@@ -317,7 +317,7 @@ LlTxKnCrWAXftSm1rNtewTsF\n\
-----END CERTIFICATE-----";
xmlSecKeyPtr key = lasso_xmlsec_load_private_key_from_buffer(pkey, sizeof(pkey)-1, NULL,
- LASSO_SIGNATURE_METHOD_RSA_SHA1, NULL);
+ LASSO_SIGNATURE_METHOD_RSA_SHA256, NULL);
fail_unless(key != NULL, "Cannot load public key");
fail_unless(lasso_saml2_query_verify_signature(query1, key) == 0, "Signature was not validated");
@@ -332,11 +332,11 @@ END_TEST
START_TEST(test08_lasso_key)
{
/* normal query as produces by Lasso */
- const char query1[] = "SAMLRequest=fZHNasMwEIRfxeieWrYTtQjb4DgJBNqSNqWHXopw1kQgS6523Z%2B3r%2BxQSKDkOppvd2aVo%2BpML6uBjvYZPgZAir47Y1FODwUbvJVOoUZpVQcoqZH76uFepjdc9t6Ra5xhZ8h1QiGCJ%2B0si7argr0vxTLJ1guRilpU8%2FWtyKpNnaXrukoF32SCRa%2FgMfgLFvAAIQ6wtUjKUpB4wmc8nSX8hXOZ3Ml0%2FsaijfMNTIUK1iqDMGK7sFl%2Fwp9S5mNWOY3z5ZGol3GM%2FSLugNRBkcrjc0N%2ButJj6LNd7ZzRzc%2B4plN0ve6o6MOsnayyH6sggSUW7XfjsKdBGd1q8AX7JwOLKmPcV%2B1BUUhOfgAWl6dkl19W%2FgI%3D&RelayState=fake%5B%5D&SigAlg=http%3A%2F%2Fwww.w3.org%2F2000%2F09%2Fxmldsig%23rsa-sha1&Signature=wDxMSEPKhK%2FuU06cmL50oVx%2B7eP5%2FQirShQE%2BLv9pT3CrVwb6WBV1Tp9XS2VVJ2odLHogdA%2FE1XDW7BIRKYgkN8bXVlC2GybSYBhyn8bwAuyHs%2BnMW48LF%2FE5vFiZxbw8tMWUAktdvDuaXoZLhubX7UgV%2B%2BdRyjhckolpXTC9xuJdoHJUDF0vzzNm8xZs6LR7tjWUoz5CcjMJA3LVfWmpE5UjCyRmGbi9knGWHdY75CFtArD%2BNSkGeNx9xySrUlik6e57Zlodv4V9WBdeopAWskO58BA27GqTmnSLooeo%2FrtLxc1NZeuau11YxNzwl%2FvN8%2FQ5IsR3Xic8X1TaCCtwg%3D%3D";
+ const char query1[] = "SAMLRequest=fVHJasMwEP0Vo3tqRXY2YRvcOIFAl9CUHnopwpkkAllyNeMuf1%2FZaSG95PrmLfNmMlSNaWXZ0ck%2BwXsHSNFXYyzKYZCzzlvpFGqUVjWAkmq5K%2B%2FvpLjhsvWOXO0Mu5BcVyhE8KSdZdGmytnbNEmTBV%2Bli9ulKMt5KlbVfDkbizWfcVEmUxa9gMfAz1mQBxFiBxuLpCwFiIvxiE9H48mz4FJMZJq8sqgKHbRVNKhORK2MY71vJzFqezSw00f7GPLXztcw9M7ZQRmE3n0bFtQf8IcUWV9JDqm%2B%2BPXCYNUAqb0ilcWXhOx8zIdQe1NtndH1dx%2FTKLp%2BlR7R%2B9FhoMq2b4wEllhUGuM%2Blx4UhZ3Id8Di4pz5%2F2fFDw%3D%3D&RelayState=fake&SigAlg=http%3A%2F%2Fwww.w3.org%2F2001%2F04%2Fxmldsig-more%23rsa-sha256&Signature=Zfz3DE1VMV3thaV4FWpH0fkWsBMzAFJcfvVWAbo0a3cY48Et%2BXUcbr1nvOJUJmhGoie0pQ4%2BcD9ToQlSk7BbJSBCct%2FQQgn2QNkX%2F1lk4v8RU8p5ptJRJ2iPLb8nC6WZhs81HoihQePSuj7Qe5bRUsDKvnWMq6OkD%2Fe6YO77dMXregTcfmnkrXqRb2T6TFfqyOz9i0%2FjmISsmj%2F3kEEfUzVA4LEbeEgiJDj1hec4XW26gQTih53v0sYukq4Eyb4zS2jVd3apUUxUrjn1NUpr7Z7dZ7w5MQlgZ8aw1xFDE8BkxymvIjwf8ciyx6sfTKbCRsoS9E0pQB1vxvh6OMt1Ww%3D%3D";
/* SAMLRequest field was moved in the middle, Signature to the beginning and all & were
* changed to ; */
- const char query2[] = "Signature=wDxMSEPKhK%2FuU06cmL50oVx%2B7eP5%2FQirShQE%2BLv9pT3CrVwb6WBV1Tp9XS2VVJ2odLHogdA%2FE1XDW7BIRKYgkN8bXVlC2GybSYBhyn8bwAuyHs%2BnMW48LF%2FE5vFiZxbw8tMWUAktdvDuaXoZLhubX7UgV%2B%2BdRyjhckolpXTC9xuJdoHJUDF0vzzNm8xZs6LR7tjWUoz5CcjMJA3LVfWmpE5UjCyRmGbi9knGWHdY75CFtArD%2BNSkGeNx9xySrUlik6e57Zlodv4V9WBdeopAWskO58BA27GqTmnSLooeo%2FrtLxc1NZeuau11YxNzwl%2FvN8%2FQ5IsR3Xic8X1TaCCtwg%3D%3D;RelayState=fake%5B%5D;SAMLRequest=fZHNasMwEIRfxeieWrYTtQjb4DgJBNqSNqWHXopw1kQgS6523Z%2B3r%2BxQSKDkOppvd2aVo%2BpML6uBjvYZPgZAir47Y1FODwUbvJVOoUZpVQcoqZH76uFepjdc9t6Ra5xhZ8h1QiGCJ%2B0si7argr0vxTLJ1guRilpU8%2FWtyKpNnaXrukoF32SCRa%2FgMfgLFvAAIQ6wtUjKUpB4wmc8nSX8hXOZ3Ml0%2FsaijfMNTIUK1iqDMGK7sFl%2Fwp9S5mNWOY3z5ZGol3GM%2FSLugNRBkcrjc0N%2ButJj6LNd7ZzRzc%2B4plN0ve6o6MOsnayyH6sggSUW7XfjsKdBGd1q8AX7JwOLKmPcV%2B1BUUhOfgAWl6dkl19W%2FgI%3D;SigAlg=http%3A%2F%2Fwww.w3.org%2F2000%2F09%2Fxmldsig%23rsa-sha1";
- const char query3[] = "RelayState=fake%5B%5D&SAMLRequest=fZHNasMwEIRfxeieWrYTtQjb4DgJBNqSNqWHXopw1kQgS6523Z%2B3r%2BxQSKDkOppvd2aVo%2BpML6uBjvYZPgZAir47Y1FODwUbvJVOoUZpVQcoqZH76uFepjdc9t6Ra5xhZ8h1QiGCJ%2B0si7argr0vxTLJ1guRilpU8%2FWtyKpNnaXrukoF32SCRa%2FgMfgLFvAAIQ6wtUjKUpB4wmc8nSX8hXOZ3Ml0%2FsaijfMNTIUK1iqDMGK7sFl%2Fwp9S5mNWOY3z5ZGol3GM%2FSLugNRBkcrjc0N%2ButJj6LNd7ZzRzc%2B4plN0ve6o6MOsnayyH6sggSUW7XfjsKdBGd1q8AX7JwOLKmPcV%2B1BUUhOfgAWl6dkl19W%2FgI%3D&SigAlg=http%3A%2F%2Fwww.w3.org%2F2000%2F09%2Fxmldsig%23rsa-sha1&Signature=wDxMSEPKhK%2FuU06cmL50oVx%2B7eP5%2FQirShQE%2BLv9pT3CrVwb6WBV1Tp9XS2VVJ2odLHogdA%2FE1XDW7BIRKYgkN8bXVlC2GybSYBhyn8bwAuyHs%2BnMW48LF%2FE5vFiZxbw8tMWUAktdvDuaXoZLhubX7UgV%2B%2BdRyjhckolpXTC9xuJdoHJUDF0vzzNm8xZs6LR7tjWUoz5CcjMJA3LVfWmpE5UjCyRmGbi9knGWHdY75CFtArD%2BNSkGeNx9xySrUlik6e57Zlodv4V9WBdeopAWskO58BA27GqTmnSLooeo%2FrtLxc1NZeuau11YxNzwl%2FvN8%2FQ5IsR3Xic8X1TacCtwg%3D%3D";
+ const char query2[] = "Signature=Zfz3DE1VMV3thaV4FWpH0fkWsBMzAFJcfvVWAbo0a3cY48Et%2BXUcbr1nvOJUJmhGoie0pQ4%2BcD9ToQlSk7BbJSBCct%2FQQgn2QNkX%2F1lk4v8RU8p5ptJRJ2iPLb8nC6WZhs81HoihQePSuj7Qe5bRUsDKvnWMq6OkD%2Fe6YO77dMXregTcfmnkrXqRb2T6TFfqyOz9i0%2FjmISsmj%2F3kEEfUzVA4LEbeEgiJDj1hec4XW26gQTih53v0sYukq4Eyb4zS2jVd3apUUxUrjn1NUpr7Z7dZ7w5MQlgZ8aw1xFDE8BkxymvIjwf8ciyx6sfTKbCRsoS9E0pQB1vxvh6OMt1Ww%3D%3D;SAMLRequest=fVHJasMwEP0Vo3tqRXY2YRvcOIFAl9CUHnopwpkkAllyNeMuf1%2FZaSG95PrmLfNmMlSNaWXZ0ck%2BwXsHSNFXYyzKYZCzzlvpFGqUVjWAkmq5K%2B%2FvpLjhsvWOXO0Mu5BcVyhE8KSdZdGmytnbNEmTBV%2Bli9ulKMt5KlbVfDkbizWfcVEmUxa9gMfAz1mQBxFiBxuLpCwFiIvxiE9H48mz4FJMZJq8sqgKHbRVNKhORK2MY71vJzFqezSw00f7GPLXztcw9M7ZQRmE3n0bFtQf8IcUWV9JDqm%2B%2BPXCYNUAqb0ilcWXhOx8zIdQe1NtndH1dx%2FTKLp%2BlR7R%2B9FhoMq2b4wEllhUGuM%2Blx4UhZ3Id8Di4pz5%2F2fFDw%3D%3D;RelayState=fake;SigAlg=http%3A%2F%2Fwww.w3.org%2F2001%2F04%2Fxmldsig-more%23rsa-sha256";
+ const char query3[] = "SAMLRequest=fVHJasMwEP0Vo3tqRXY2YRvcOIFAl9CUHnopwpkkAllyNeMuf1%2FZaSG95PrmLfNmMlSNaWXZ0ck%2BwXsHSNFXYyzKYZCzzlvpFGqUVjWAkmq5K%2B%2FvpLjhsvWOXO0Mu5BcVyhE8KSdZdGmytnbNEmTBV%2Bli9ulKMt5KlbVfDkbizWfcVEmUxa9gMfAz1mQBxFiBxuLpCwFiIvxiE9H48mz4FJMZJq8sqgKHbRVNKhORK2MY71vJzFqezSw00f7GPLXztcw9M7ZQRmE3n0bFtQf8IcUWV9JDqm%2B%2BPXCYNUAqb0ilcWXhOx8zIdQe1NtndH1dx%2FTKLp%2BlR7R%2B9FhoMq2b4wEllhUGuM%2Blx4UhZ3Id8Di4pz5%2F2fFDw%3D%3D&RelayState=fake&SigAlg=http%3A%2F%2Fwww.w3.org%2F2001%2F04%2Fxmldsig-more%23rsa-sha256&Signature=rUJ%2B9wVSvdGSmZWGuGXgudAPV5KBxRfxRKraBWGIslBz2XreyNbQjSA47DhIfi%2Bxf0awIIGkKcieN3Qd5sqVn4wvFU8fsmfqrdtouYi46aKsj4W91N19TxJ%2BCgrP7ygVEGDaGdc%2BrCQC3%2FuoYTELXq0gYP7tHaXA%2FCaZHfx5Z159crpRxS6eabZ6BGf4ImxiKhE1FuYzKHeISEV1iSyvgx5%2FE8ydSO%2FSP6yA5Rck4JxVJWH6ImbswCVQ80qfqR4NoJ%2BxiZqilbDJnQaSKZggx%2FgjNVoX%2FMVW1FqEmgJNcZpSjNUQqy9u4veSllpxPc2aB%2FpiUjzpbq9XzyFDOQfkUQ%3D%3D";
/* sp5-saml2 key */
const char pkey[] = "-----BEGIN CERTIFICATE-----\n\
MIIDnjCCAoagAwIBAgIBATANBgkqhkiG9w0BAQUFADBUMQswCQYDVQQGEwJGUjEP\n\
@@ -361,29 +361,29 @@ NC1/bzp8cGOcJ88BD5+Ny6qgPVCrMLE5twQumJ12V3SvjGNtzFBvg2c/9S5OmVqR\n\
LlTxKnCrWAXftSm1rNtewTsF\n\
-----END CERTIFICATE-----";
LassoKey *key = lasso_key_new_for_signature_from_memory(pkey, strlen(pkey), NULL,
- LASSO_SIGNATURE_METHOD_RSA_SHA1, NULL);
+ LASSO_SIGNATURE_METHOD_RSA_SHA256, NULL);
LassoKey *key2 = lasso_key_new_for_signature_from_file(
TESTSDATADIR "/sp5-saml2/private-key.pem", NULL,
- LASSO_SIGNATURE_METHOD_RSA_SHA1, NULL);
- char *message = "<samlp:AuthnRequest xmlns:samlp=\"urn:oasis:names:tc:SAML:2.0:protocol\" xmlns:saml=\"urn:oasis:names:tc:SAML:2.0:assertion\" ID=\"_E3F8E9116EE08F0E2607CF9789649BB4\" Version=\"2.0\" IssueInstant=\"2012-03-09T11:34:48Z\" ForceAuthn=\"false\" IsPassive=\"false\"><saml:Issuer>http://sp5/metadata</saml:Issuer><Signature xmlns=\"http://www.w3.org/2000/09/xmldsig#\">\n\
+ LASSO_SIGNATURE_METHOD_RSA_SHA256, NULL);
+ char *message = "<s:Envelope xmlns:s=\"http://schemas.xmlsoap.org/soap/envelope/\" xmlns:samlp=\"urn:oasis:names:tc:SAML:2.0:protocol\" xmlns:saml=\"urn:oasis:names:tc:SAML:2.0:assertion\"><s:Body><samlp:ArtifactResolve ID=\"_5E4DB038BC15C020CE085F743D485443\" Version=\"2.0\" IssueInstant=\"2021-06-18T16:07:49Z\" Destination=\"http://idp5/artifact\"><saml:Issuer>http://sp5/metadata</saml:Issuer><Signature xmlns=\"http://www.w3.org/2000/09/xmldsig#\">\n\
<SignedInfo>\n\
<CanonicalizationMethod Algorithm=\"http://www.w3.org/2001/10/xml-exc-c14n#\"/>\n\
-<SignatureMethod Algorithm=\"http://www.w3.org/2000/09/xmldsig#rsa-sha1\"/>\n\
-<Reference URI=\"#_E3F8E9116EE08F0E2607CF9789649BB4\">\n\
+<SignatureMethod Algorithm=\"http://www.w3.org/2001/04/xmldsig-more#rsa-sha256\"/>\n\
+<Reference URI=\"#_5E4DB038BC15C020CE085F743D485443\">\n\
<Transforms>\n\
<Transform Algorithm=\"http://www.w3.org/2000/09/xmldsig#enveloped-signature\"/>\n\
<Transform Algorithm=\"http://www.w3.org/2001/10/xml-exc-c14n#\"/>\n\
</Transforms>\n\
-<DigestMethod Algorithm=\"http://www.w3.org/2000/09/xmldsig#sha1\"/>\n\
-<DigestValue>tMncKjklMJaJLbmB7bARmX14Fdg=</DigestValue>\n\
+<DigestMethod Algorithm=\"http://www.w3.org/2001/04/xmlenc#sha256\"/>\n\
+<DigestValue>1Xy/VevGqojdKIvLzkczdd9Mp3AFYvZfsakldADTuO4=</DigestValue>\n\
</Reference>\n\
</SignedInfo>\n\
-<SignatureValue>VjAHErXE8rz5yQ/t9Ubws11E59PsU/tXPtL6eCMAVLQxV4Bv0dwyYkeHtge1DXDT\n\
-usTy1c17+iuYCVqD3Db51+LMVsHchj0j44fhu/PXNQTmgiT2AuVfH97YhiBWykAs\n\
-LwT8MiE9vNGiHQwsWVjhdzooVmU0M80m0Ij2DFMcYiKzmuMhE4M65qUO4tygQLiL\n\
-YB5oPe0VYKEBJLfaTvuijLBTi4ecx6aU+HptAvuEOcCbcJZtGyv7jr2yuEDSq72S\n\
-0hwOV0CIsQoSf/vL7R9RzTs2bpgYVGqgerhpWsz6dqo7YX0NSj9pMbXZiOyX/YzS\n\
-uP3QSjow05NiPhy8ywKW8A==</SignatureValue>\n\
+<SignatureValue>R5unK5JQ8no8VCokUKKw8zXglIsjggH16cQxnqKl2GpFeeFh8Tzi4KRXTzVNXi9c\n\
+dID0FTAsFM2Ol5Sqg/j2TVasR93PyIg2pUOb00tNwx8D81xEi1lXdWThHfiinYI0\n\
+2qJSFj1H8wt/ceULmnvC0F01ga78LQervkjMaSpqlvyKYrNNOEJEYo0SJSUnUE5p\n\
+wlv30BjnUCyXWQl9i03MvpPSOTJkXrFLqbJB8rB/HNdS71lWAU3k8r56OAxzTXUn\n\
+WXr73mrQrLGJzbofDjO1Lfz8JpZXRzsffAsMCxKfoL+VzrElPNW5aklrFm603w2w\n\
+6/xQk0BsHvPP8k6V32RuXQ==</SignatureValue>\n\
<KeyInfo>\n\
<KeyValue>\n\
<RSAKeyValue>\n\
@@ -401,7 +401,7 @@ AQAB\n\
</RSAKeyValue>\n\
</KeyValue>\n\
</KeyInfo>\n\
-</Signature><samlp:NameIDPolicy Format=\"urn:oasis:names:tc:SAML:2.0:nameid-format:persistent\" AllowCreate=\"true\"/></samlp:AuthnRequest>";
+</Signature><samlp:Artifact>AAQAALQUO+cobSry7mQpUjWDhKkaePFoNDRBMDY3RDY3QjNFM0QzQzA1NzQ=</samlp:Artifact></samlp:ArtifactResolve></s:Body></s:Envelope>";
xmlDoc *doc;
doc = xmlParseDoc(BAD_CAST message);
@@ -411,7 +411,7 @@ AQAB\n\
fail_unless(lasso_key_query_verify(key, query2) == 0, "Disordered signature was not validated");
fail_unless(lasso_key_query_verify(key, query3) != 0, "Altered signature was validated");
fail_unless(lasso_key_saml2_xml_verify(key,
- "_E3F8E9116EE08F0E2607CF9789649BB4", xmlDocGetRootElement(doc)) == 0,
+ "_5E4DB038BC15C020CE085F743D485443", xmlDocGetRootElement(doc)) == 0,
"XML Signature is not validated");
g_object_unref(key);
fail_unless(key2 != NULL, "Cannot load public key2");
@@ -420,7 +420,7 @@ AQAB\n\
fail_unless(lasso_key_query_verify(key2, query2) == 0, "Disordered signature was not validated");
fail_unless(lasso_key_query_verify(key2, query3) != 0, "Altered signature was validated");
fail_unless(lasso_key_saml2_xml_verify(key2,
- "_E3F8E9116EE08F0E2607CF9789649BB4", xmlDocGetRootElement(doc)) == 0,
+ "_5E4DB038BC15C020CE085F743D485443", xmlDocGetRootElement(doc)) == 0,
"XML Signature is not validated");
g_object_unref(key2);
lasso_release_doc(doc);
--
2.26.3

View File

@ -0,0 +1,363 @@
From f095ac8f5740b6eee687cac97840bc7e72992999 Mon Sep 17 00:00:00 2001
From: Jakub Hrozek <jhrozek@redhat.com>
Date: Mon, 7 Jun 2021 12:27:15 +0200
Subject: [PATCH 3/7] Make the default signature method and the minimal hash
strength configurable (#54037)
Adds two new configure options:
--with-default-sign-algo
--min-hash-algo
--with-default-sign-algo sets the default signing algorithm and defaults
to rsa-sha1. At the moment, two algorithms are supported: rsa-sha1 and
rsa-sha256.
--min-hash-algo sets the minimum hash algorithm to be accepted. The
default is sha1 for backwards compatibility as well.
Related:
https://dev.entrouvert.org/issues/54037
---
configure.ac | 42 +++++++++++++++++++++++++++++
lasso/id-ff/server.c | 2 +-
lasso/id-ff/server.h | 2 ++
lasso/lasso.c | 51 +++++++++++++++++++++++++++++++++++
lasso/xml/tools.c | 63 +++++++++++++++++++++++++++++++++++---------
lasso/xml/xml.c | 24 +++++++++++++++++
lasso/xml/xml.h | 9 +++++++
tests/random_tests.c | 6 ++---
8 files changed, 182 insertions(+), 17 deletions(-)
diff --git a/configure.ac b/configure.ac
index b527def43..2cdfbb149 100644
--- a/configure.ac
+++ b/configure.ac
@@ -795,6 +795,43 @@ else
AC_MSG_RESULT(no)
fi
+AC_ARG_WITH([default-sign-algo],
+ [AS_HELP_STRING([--with-default-sign-algo=[rsa-sha1|rsa-sha256]],
+ [Default signing algorithm (rsa-sha1)]
+ )
+ ]
+)
+
+SIGNING_ALGO=rsa-sha1
+if test x"$with_default_sign_algo" != x; then
+ if test ! "$with_default_sign_algo" = "rsa-sha1" -a ! "$with_default_sign_algo" = "rsa-sha256"; then
+ AC_MSG_ERROR("Default signing algorithm must be either rsa-sha1 or rsa-sha256")
+ else
+ SIGNING_ALGO=$with_default_sign_algo
+ fi
+fi
+
+AC_DEFINE_UNQUOTED(DEFAULT_SIGNING_ALGO, "$SIGNING_ALGO", ["The default signing algorithm"])
+
+AC_ARG_WITH([min-hash-algo],
+ [AS_HELP_STRING([--with-min-hash-algo=[sha1|sha256|sha384|sha512]],
+ [Minimal allowed hash algorithm (rsa-sha1)]
+ )
+ ]
+)
+
+MIN_HASH_ALGO=sha1
+if test x"$with_min_hash_algo" != x; then
+ if test ! "$with_min_hash_algo" = "sha1" -a ! "$with_min_hash_algo" = "sha256" -a ! "$with_min_hash_algo" = "sha384" -a ! "$with_min_hash_algo" = "sha512"; then
+ AC_MSG_ERROR("Minimal allowed hash algorithm must be one of sha1, sha256, sha384 or sha512)
+ else
+ MIN_HASH_ALGO=$with_min_hash_algo
+ fi
+fi
+
+AC_DEFINE_UNQUOTED(MIN_HASH_ALGO, "$MIN_HASH_ALGO", ["The minimal hash algorithm"])
+
+
dnl ==========================================================================
dnl Pedantic compilation
dnl ==========================================================================
@@ -939,4 +976,9 @@ Python binding: ${enable_python}
C API references: ${enable_gtk_doc}
Tests suite: ${enable_tests}
+
+Crypto settings
+---------------
+Default signature: ${SIGNING_ALGO}
+Minimal accepted hash: ${MIN_HASH_ALGO}
)
diff --git a/lasso/id-ff/server.c b/lasso/id-ff/server.c
index 08bbde833..2bf5b7a8c 100644
--- a/lasso/id-ff/server.c
+++ b/lasso/id-ff/server.c
@@ -682,7 +682,7 @@ instance_init(LassoServer *server)
server->private_key = NULL;
server->private_key_password = NULL;
server->certificate = NULL;
- server->signature_method = LASSO_SIGNATURE_METHOD_RSA_SHA1;
+ server->signature_method = lasso_get_default_signature_method();
server->services = g_hash_table_new_full(g_str_hash, g_str_equal,
(GDestroyNotify)g_free,
diff --git a/lasso/id-ff/server.h b/lasso/id-ff/server.h
index 8b4192793..5f9022e9d 100644
--- a/lasso/id-ff/server.h
+++ b/lasso/id-ff/server.h
@@ -133,6 +133,8 @@ LASSO_EXPORT gchar *lasso_server_get_endpoint_url_by_id(const LassoServer *serve
LASSO_EXPORT GList *lasso_server_get_filtered_provider_list(const LassoServer *server,
LassoProviderRole role, LassoMdProtocolType protocol_type, LassoHttpMethod http_method);
+LASSO_EXPORT LassoSignatureMethod lasso_get_default_signature_method();
+void lasso_set_default_signature_method(LassoSignatureMethod meth);
#ifdef __cplusplus
}
diff --git a/lasso/lasso.c b/lasso/lasso.c
index 087485998..67340317d 100644
--- a/lasso/lasso.c
+++ b/lasso/lasso.c
@@ -149,6 +149,44 @@ lasso_xmlsec_errors_callback(const char *file G_GNUC_UNUSED, int line G_GNUC_UNU
g_log("libxmlsec", G_LOG_LEVEL_DEBUG, "libxmlsec: %s:%d:%s:%s:%s:%s:%s", file, line, func, errorObject, errorSubject, xmlSecErrorsGetMsg(reason), msg);
}
+static int
+set_default_signature_method()
+{
+ int rv = LASSO_ERROR_UNDEFINED;
+
+ if (lasso_strisequal(DEFAULT_SIGNING_ALGO, "rsa-sha256")) {
+ lasso_set_default_signature_method(LASSO_SIGNATURE_METHOD_RSA_SHA256);
+ rv = 0;
+ } else if (lasso_strisequal(DEFAULT_SIGNING_ALGO, "rsa-sha1")) {
+ lasso_set_default_signature_method(LASSO_SIGNATURE_METHOD_RSA_SHA1);
+ rv = 0;
+ }
+
+ return rv;
+}
+
+static int
+set_min_allowed_hash_algo()
+{
+ int rv = LASSO_ERROR_UNDEFINED;
+
+ if (lasso_strisequal(MIN_HASH_ALGO, "sha1")) {
+ lasso_set_min_signature_method(LASSO_SIGNATURE_METHOD_RSA_SHA1);
+ rv = 0;
+ } else if (lasso_strisequal(MIN_HASH_ALGO, "sha256")) {
+ lasso_set_min_signature_method(LASSO_SIGNATURE_METHOD_RSA_SHA256);
+ rv = 0;
+ } else if (lasso_strisequal(MIN_HASH_ALGO, "sha384")) {
+ lasso_set_min_signature_method(LASSO_SIGNATURE_METHOD_RSA_SHA384);
+ rv = 0;
+ } else if (lasso_strisequal(MIN_HASH_ALGO, "sha512")) {
+ lasso_set_min_signature_method(LASSO_SIGNATURE_METHOD_RSA_SHA512);
+ rv = 0;
+ }
+
+ return rv;
+}
+
/**
* lasso_init:
*
@@ -164,6 +202,19 @@ int lasso_init()
g_type_init();
#endif
+ /* Set the default hash algo */
+ if (set_default_signature_method() != 0) {
+ message(G_LOG_LEVEL_CRITICAL, "Unsupported signature "
+ "algorithm "DEFAULT_SIGNING_ALGO" configured");
+ return LASSO_ERROR_UNDEFINED;
+ }
+ if (set_min_allowed_hash_algo() != 0) {
+ message(G_LOG_LEVEL_CRITICAL, "Unsupported hash algorithm "
+ "algorithm "MIN_HASH_ALGO" configured");
+ return LASSO_ERROR_UNDEFINED;
+ }
+
+
/* Init Lasso classes */
for (i=0; functions[i]; i++)
functions[i]();
diff --git a/lasso/xml/tools.c b/lasso/xml/tools.c
index 290fd55f2..ce322ee1f 100644
--- a/lasso/xml/tools.c
+++ b/lasso/xml/tools.c
@@ -1505,16 +1505,6 @@ lasso_saml_constrain_dsigctxt(xmlSecDSigCtxPtr dsigCtx) {
(xmlSecDSigCtxEnableSignatureTransform(dsigCtx, xmlSecTransformExclC14NWithCommentsId) < 0) ||
(xmlSecDSigCtxEnableSignatureTransform(dsigCtx, xmlSecTransformInclC14N11Id) < 0) ||
(xmlSecDSigCtxEnableSignatureTransform(dsigCtx, xmlSecTransformInclC14N11WithCommentsId) < 0) ||
- (xmlSecDSigCtxEnableSignatureTransform(dsigCtx, xmlSecTransformSha1Id) < 0) ||
- (xmlSecDSigCtxEnableSignatureTransform(dsigCtx, xmlSecTransformHmacSha1Id) < 0) ||
- (xmlSecDSigCtxEnableSignatureTransform(dsigCtx, xmlSecTransformDsaSha1Id) < 0) ||
- (xmlSecDSigCtxEnableSignatureTransform(dsigCtx, xmlSecTransformRsaSha1Id) < 0) ||
- (xmlSecDSigCtxEnableSignatureTransform(dsigCtx, xmlSecTransformSha256Id) < 0) ||
- (xmlSecDSigCtxEnableSignatureTransform(dsigCtx, xmlSecTransformHmacSha256Id) < 0) ||
- (xmlSecDSigCtxEnableSignatureTransform(dsigCtx, xmlSecTransformRsaSha256Id) < 0) ||
- (xmlSecDSigCtxEnableSignatureTransform(dsigCtx, xmlSecTransformSha384Id) < 0) ||
- (xmlSecDSigCtxEnableSignatureTransform(dsigCtx, xmlSecTransformHmacSha384Id) < 0) ||
- (xmlSecDSigCtxEnableSignatureTransform(dsigCtx, xmlSecTransformRsaSha384Id) < 0) ||
(xmlSecDSigCtxEnableSignatureTransform(dsigCtx, xmlSecTransformSha512Id) < 0) ||
(xmlSecDSigCtxEnableSignatureTransform(dsigCtx, xmlSecTransformHmacSha512Id) < 0) ||
(xmlSecDSigCtxEnableSignatureTransform(dsigCtx, xmlSecTransformRsaSha512Id) < 0)
@@ -1523,15 +1513,62 @@ lasso_saml_constrain_dsigctxt(xmlSecDSigCtxPtr dsigCtx) {
message(G_LOG_LEVEL_CRITICAL, "Error: failed to limit allowed signature transforms");
return FALSE;
}
+
+ if (lasso_get_min_signature_method() <= LASSO_SIGNATURE_METHOD_RSA_SHA384) {
+ if ((xmlSecDSigCtxEnableSignatureTransform(dsigCtx, xmlSecTransformSha384Id) < 0) ||
+ (xmlSecDSigCtxEnableSignatureTransform(dsigCtx, xmlSecTransformHmacSha384Id) < 0) ||
+ (xmlSecDSigCtxEnableSignatureTransform(dsigCtx, xmlSecTransformRsaSha384Id) < 0)) {
+
+ message(G_LOG_LEVEL_CRITICAL, "Error: failed to limit allowed sha384 signature transforms");
+ return FALSE;
+ }
+
+ if (xmlSecDSigCtxEnableReferenceTransform(dsigCtx, xmlSecTransformSha384Id) < 0) {
+
+ message(G_LOG_LEVEL_CRITICAL, "Error: failed to limit allowed sha384 reference transforms");
+ return FALSE;
+ }
+ }
+
+ if (lasso_get_min_signature_method() <= LASSO_SIGNATURE_METHOD_RSA_SHA256) {
+ if ((xmlSecDSigCtxEnableSignatureTransform(dsigCtx, xmlSecTransformSha256Id) < 0) ||
+ (xmlSecDSigCtxEnableSignatureTransform(dsigCtx, xmlSecTransformHmacSha256Id) < 0) ||
+ (xmlSecDSigCtxEnableSignatureTransform(dsigCtx, xmlSecTransformRsaSha256Id) < 0)) {
+
+ message(G_LOG_LEVEL_CRITICAL, "Error: failed to limit allowed sha256 signature transforms");
+ return FALSE;
+ }
+
+ if (xmlSecDSigCtxEnableReferenceTransform(dsigCtx, xmlSecTransformSha256Id) < 0) {
+
+ message(G_LOG_LEVEL_CRITICAL, "Error: failed to limit allowed sha256 reference transforms");
+ return FALSE;
+ }
+ }
+
+ if (lasso_get_min_signature_method() <= LASSO_SIGNATURE_METHOD_RSA_SHA1) {
+ if ((xmlSecDSigCtxEnableSignatureTransform(dsigCtx, xmlSecTransformSha1Id) < 0) ||
+ (xmlSecDSigCtxEnableSignatureTransform(dsigCtx, xmlSecTransformHmacSha1Id) < 0) ||
+ (xmlSecDSigCtxEnableSignatureTransform(dsigCtx, xmlSecTransformDsaSha1Id) < 0) ||
+ (xmlSecDSigCtxEnableSignatureTransform(dsigCtx, xmlSecTransformRsaSha1Id) < 0)) {
+
+ message(G_LOG_LEVEL_CRITICAL, "Error: failed to limit allowed sha1 signature transforms");
+ return FALSE;
+ }
+
+ if (xmlSecDSigCtxEnableReferenceTransform(dsigCtx, xmlSecTransformSha1Id) < 0) {
+
+ message(G_LOG_LEVEL_CRITICAL, "Error: failed to limit allowed sha1 reference transforms");
+ return FALSE;
+ }
+ }
+
if((xmlSecDSigCtxEnableReferenceTransform(dsigCtx, xmlSecTransformInclC14NId) < 0) ||
(xmlSecDSigCtxEnableReferenceTransform(dsigCtx, xmlSecTransformExclC14NId) < 0) ||
(xmlSecDSigCtxEnableSignatureTransform(dsigCtx, xmlSecTransformInclC14NWithCommentsId) < 0) ||
(xmlSecDSigCtxEnableSignatureTransform(dsigCtx, xmlSecTransformExclC14NWithCommentsId) < 0) ||
(xmlSecDSigCtxEnableSignatureTransform(dsigCtx, xmlSecTransformInclC14N11Id) < 0) ||
(xmlSecDSigCtxEnableSignatureTransform(dsigCtx, xmlSecTransformInclC14N11WithCommentsId) < 0) ||
- (xmlSecDSigCtxEnableReferenceTransform(dsigCtx, xmlSecTransformSha1Id) < 0) ||
- (xmlSecDSigCtxEnableReferenceTransform(dsigCtx, xmlSecTransformSha256Id) < 0) ||
- (xmlSecDSigCtxEnableReferenceTransform(dsigCtx, xmlSecTransformSha384Id) < 0) ||
(xmlSecDSigCtxEnableReferenceTransform(dsigCtx, xmlSecTransformSha512Id) < 0) ||
(xmlSecDSigCtxEnableReferenceTransform(dsigCtx, xmlSecTransformEnvelopedId) < 0)) {
diff --git a/lasso/xml/xml.c b/lasso/xml/xml.c
index 938844baf..f017ebbe3 100644
--- a/lasso/xml/xml.c
+++ b/lasso/xml/xml.c
@@ -91,6 +91,10 @@ GHashTable *dst_services_by_prefix = NULL; /* ID-WSF 1 extra DST services, index
GHashTable *idwsf2_dst_services_by_href = NULL; /* ID-WSF 2 DST services, indexed on href */
GHashTable *idwsf2_dst_services_by_prefix = NULL; /* ID-WSF 2 DST services, indexed on prefix */
+
+static LassoSignatureMethod default_signature_method = LASSO_SIGNATURE_METHOD_RSA_SHA1;
+static LassoSignatureMethod min_signature_method = LASSO_SIGNATURE_METHOD_RSA_SHA1;
+
/*****************************************************************************/
/* global methods */
/*****************************************************************************/
@@ -3689,3 +3693,23 @@ lasso_node_new_from_saml2_query(const char *url_or_qs, const char *param_name, L
cleanup:
return result;
}
+
+LassoSignatureMethod
+lasso_get_default_signature_method() {
+ return default_signature_method;
+}
+
+void
+lasso_set_default_signature_method(LassoSignatureMethod meth) {
+ default_signature_method = meth;
+}
+
+LassoSignatureMethod
+lasso_get_min_signature_method() {
+ return min_signature_method;
+}
+
+void
+lasso_set_min_signature_method(LassoSignatureMethod meth) {
+ min_signature_method = meth;
+}
diff --git a/lasso/xml/xml.h b/lasso/xml/xml.h
index 7660a0647..d0d3e1b0d 100644
--- a/lasso/xml/xml.h
+++ b/lasso/xml/xml.h
@@ -116,6 +116,15 @@ typedef enum {
LASSO_SIGNATURE_METHOD_LAST
} LassoSignatureMethod;
+/* signature method and hash strength */
+LassoSignatureMethod lasso_get_default_signature_method();
+
+void lasso_set_default_signature_method(LassoSignatureMethod meth);
+
+LassoSignatureMethod lasso_get_min_signature_method();
+
+void lasso_set_min_signature_method(LassoSignatureMethod meth);
+
static inline gboolean
lasso_validate_signature_method(LassoSignatureMethod signature_method)
{
diff --git a/tests/random_tests.c b/tests/random_tests.c
index fa0367a3c..cf112c7e2 100644
--- a/tests/random_tests.c
+++ b/tests/random_tests.c
@@ -97,7 +97,7 @@ START_TEST(test01_server_new)
fail_unless(server->private_key != NULL);
fail_unless(server->private_key_password == NULL);
fail_unless(server->certificate != NULL);
- fail_unless(server->signature_method == LASSO_SIGNATURE_METHOD_RSA_SHA1);
+ fail_unless(server->signature_method == lasso_get_default_signature_method());
fail_unless(provider->ProviderID != NULL);
fail_unless(provider->role == 0);
fail_unless(g_file_get_contents(TESTSDATADIR "/idp1-la/metadata.xml", &content, &len, NULL));
@@ -115,7 +115,7 @@ START_TEST(test01_server_new)
fail_unless(server->private_key != NULL);
fail_unless(server->private_key_password == NULL);
fail_unless(server->certificate != NULL);
- fail_unless(server->signature_method == LASSO_SIGNATURE_METHOD_RSA_SHA1);
+ fail_unless(server->signature_method == lasso_get_default_signature_method());
fail_unless(server->providers != NULL);
fail_unless(provider->ProviderID != NULL);
fail_unless(provider->role == 0, "provider->role != 0 => provider := %d", provider->role);
@@ -143,7 +143,7 @@ START_TEST(test02_server_add_provider)
fail_unless(server->private_key != NULL);
fail_unless(! server->private_key_password);
fail_unless(server->certificate != NULL);
- fail_unless(server->signature_method == LASSO_SIGNATURE_METHOD_RSA_SHA1);
+ fail_unless(server->signature_method == lasso_get_default_signature_method());
fail_unless(server->providers != NULL);
lasso_server_add_provider(
server,
--
2.26.3

View File

@ -0,0 +1,162 @@
From 0d34c97be1c761a9eb12692e4cc4eac58feb7d19 Mon Sep 17 00:00:00 2001
From: Jakub Hrozek <jhrozek@redhat.com>
Date: Tue, 15 Jun 2021 14:45:14 +0200
Subject: [PATCH 4/7] Mass-replace LASSO_SIGNATURE_METHOD_RSA_SHA1 with
lasso_get_default_signature_method() (#54037)
This should be backwards-compatible but at the same time use the
selected default instead of RSA-SHA1.
Related:
https://dev.entrouvert.org/issues/54037
---
lasso/id-ff/defederation.c | 2 +-
lasso/id-ff/logout.c | 6 +++---
lasso/id-ff/name_identifier_mapping.c | 4 ++--
lasso/id-ff/name_registration.c | 4 ++--
lasso/id-ff/provider.c | 2 +-
lasso/xml/tools.c | 2 +-
tests/basic_tests.c | 6 +++---
7 files changed, 13 insertions(+), 13 deletions(-)
diff --git a/lasso/id-ff/defederation.c b/lasso/id-ff/defederation.c
index d711e4eed..d2382f4ae 100644
--- a/lasso/id-ff/defederation.c
+++ b/lasso/id-ff/defederation.c
@@ -251,7 +251,7 @@ lasso_defederation_init_notification(LassoDefederation *defederation, gchar *rem
nameIdentifier,
profile->server->certificate ?
LASSO_SIGNATURE_TYPE_WITHX509 : LASSO_SIGNATURE_TYPE_SIMPLE,
- LASSO_SIGNATURE_METHOD_RSA_SHA1);
+ lasso_get_default_signature_method());
if (profile->msg_relayState) {
message(G_LOG_LEVEL_WARNING,
"RelayState was defined but can't be used "\
diff --git a/lasso/id-ff/logout.c b/lasso/id-ff/logout.c
index 20d04ed82..d307db586 100644
--- a/lasso/id-ff/logout.c
+++ b/lasso/id-ff/logout.c
@@ -396,7 +396,7 @@ lasso_logout_build_response_msg(LassoLogout *logout)
profile->server->certificate ?
LASSO_SIGNATURE_TYPE_WITHX509 :
LASSO_SIGNATURE_TYPE_SIMPLE,
- LASSO_SIGNATURE_METHOD_RSA_SHA1));
+ lasso_get_default_signature_method()));
} else if (profile->http_request_method == LASSO_HTTP_METHOD_REDIRECT) {
lasso_assign_new_gobject(profile->response,
lasso_lib_logout_response_new_full(
@@ -608,7 +608,7 @@ lasso_logout_init_request(LassoLogout *logout, char *remote_providerID,
nameIdentifier,
profile->server->certificate ?
LASSO_SIGNATURE_TYPE_WITHX509 : LASSO_SIGNATURE_TYPE_SIMPLE,
- LASSO_SIGNATURE_METHOD_RSA_SHA1);
+ lasso_get_default_signature_method());
} else { /* http_method == LASSO_HTTP_METHOD_REDIRECT */
is_http_redirect_get_method = TRUE;
lib_logout_request = (LassoLibLogoutRequest*)lasso_lib_logout_request_new_full(
@@ -990,7 +990,7 @@ lasso_logout_validate_request(LassoLogout *logout)
logout_request,
profile->server->certificate ?
LASSO_SIGNATURE_TYPE_WITHX509 : LASSO_SIGNATURE_TYPE_SIMPLE,
- LASSO_SIGNATURE_METHOD_RSA_SHA1));
+ lasso_get_default_signature_method()));
}
if (profile->http_request_method == LASSO_HTTP_METHOD_REDIRECT) {
lasso_assign_new_gobject(profile->response, lasso_lib_logout_response_new_full(
diff --git a/lasso/id-ff/name_identifier_mapping.c b/lasso/id-ff/name_identifier_mapping.c
index 80af6fec4..f84020eb6 100644
--- a/lasso/id-ff/name_identifier_mapping.c
+++ b/lasso/id-ff/name_identifier_mapping.c
@@ -259,7 +259,7 @@ lasso_name_identifier_mapping_init_request(LassoNameIdentifierMapping *mapping,
targetNamespace,
profile->server->certificate ?
LASSO_SIGNATURE_TYPE_WITHX509 : LASSO_SIGNATURE_TYPE_SIMPLE,
- LASSO_SIGNATURE_METHOD_RSA_SHA1);
+ lasso_get_default_signature_method());
if (LASSO_IS_LIB_NAME_IDENTIFIER_MAPPING_REQUEST(profile->request) == FALSE) {
return critical_error(LASSO_PROFILE_ERROR_BUILDING_REQUEST_FAILED);
}
@@ -458,7 +458,7 @@ lasso_name_identifier_mapping_validate_request(LassoNameIdentifierMapping *mappi
request,
profile->server->certificate ?
LASSO_SIGNATURE_TYPE_WITHX509 : LASSO_SIGNATURE_TYPE_SIMPLE,
- LASSO_SIGNATURE_METHOD_RSA_SHA1);
+ lasso_get_default_signature_method());
if (LASSO_IS_LIB_NAME_IDENTIFIER_MAPPING_RESPONSE(profile->response) == FALSE) {
return critical_error(LASSO_PROFILE_ERROR_BUILDING_RESPONSE_FAILED);
diff --git a/lasso/id-ff/name_registration.c b/lasso/id-ff/name_registration.c
index 11dbf24fe..076cf9624 100644
--- a/lasso/id-ff/name_registration.c
+++ b/lasso/id-ff/name_registration.c
@@ -339,7 +339,7 @@ lasso_name_registration_init_request(LassoNameRegistration *name_registration,
idpNameIdentifier, spNameIdentifier, oldNameIdentifier,
profile->server->certificate ?
LASSO_SIGNATURE_TYPE_WITHX509 : LASSO_SIGNATURE_TYPE_SIMPLE,
- LASSO_SIGNATURE_METHOD_RSA_SHA1);
+ lasso_get_default_signature_method());
if (profile->request == NULL) {
return critical_error(LASSO_PROFILE_ERROR_BUILDING_REQUEST_FAILED);
}
@@ -575,7 +575,7 @@ lasso_name_registration_validate_request(LassoNameRegistration *name_registratio
LASSO_LIB_REGISTER_NAME_IDENTIFIER_REQUEST(profile->request),
profile->server->certificate ?
LASSO_SIGNATURE_TYPE_WITHX509 : LASSO_SIGNATURE_TYPE_SIMPLE,
- LASSO_SIGNATURE_METHOD_RSA_SHA1);
+ lasso_get_default_signature_method());
if (LASSO_IS_LIB_REGISTER_NAME_IDENTIFIER_RESPONSE(profile->response) == FALSE) {
return critical_error(LASSO_PROFILE_ERROR_BUILDING_RESPONSE_FAILED);
}
diff --git a/lasso/id-ff/provider.c b/lasso/id-ff/provider.c
index 32a907d43..961c3669d 100644
--- a/lasso/id-ff/provider.c
+++ b/lasso/id-ff/provider.c
@@ -1274,7 +1274,7 @@ lasso_provider_load_public_key(LassoProvider *provider, LassoPublicKeyType publi
if (public_key != NULL) {
xmlSecKey *key = lasso_xmlsec_load_private_key(public_key, NULL,
- LASSO_SIGNATURE_METHOD_RSA_SHA1, NULL);
+ lasso_get_default_signature_method(), NULL);
if (key) {
lasso_list_add_new_sec_key(keys, key);
} else {
diff --git a/lasso/xml/tools.c b/lasso/xml/tools.c
index ce322ee1f..cf6dade09 100644
--- a/lasso/xml/tools.c
+++ b/lasso/xml/tools.c
@@ -2746,7 +2746,7 @@ next:
content = xmlNodeGetContent(key_value);
if (content) {
result = lasso_xmlsec_load_private_key_from_buffer((char*)content,
- strlen((char*)content), NULL, LASSO_SIGNATURE_METHOD_RSA_SHA1, NULL);
+ strlen((char*)content), NULL, lasso_get_default_signature_method(), NULL);
xmlFree(content);
}
}
diff --git a/tests/basic_tests.c b/tests/basic_tests.c
index f9cfef266..0652abc28 100644
--- a/tests/basic_tests.c
+++ b/tests/basic_tests.c
@@ -2008,16 +2008,16 @@ START_TEST(test14_lasso_key)
check_true(g_file_get_contents(TESTSDATADIR "sp1-la/private-key-raw.pem", &buffer, &length, NULL));
check_not_null(key = lasso_key_new_for_signature_from_memory(buffer,
- length, NULL, LASSO_SIGNATURE_METHOD_RSA_SHA1,
+ length, NULL, lasso_get_default_signature_method(),
NULL));
lasso_release_gobject(key);
check_not_null(key = lasso_key_new_for_signature_from_file(TESTSDATADIR
- "sp1-la/private-key-raw.pem", NULL, LASSO_SIGNATURE_METHOD_RSA_SHA1,
+ "sp1-la/private-key-raw.pem", NULL, lasso_get_default_signature_method(),
NULL));
lasso_release_gobject(key);
base64_encoded = g_base64_encode(BAD_CAST buffer, length);
check_not_null(key = lasso_key_new_for_signature_from_base64_string(base64_encoded, NULL,
- LASSO_SIGNATURE_METHOD_RSA_SHA1, NULL));
+ lasso_get_default_signature_method(), NULL));
lasso_release_string(base64_encoded);
lasso_release_string(buffer);
lasso_release_gobject(key);
--
2.26.3

View File

@ -0,0 +1,160 @@
From f9a3aca0cb31a412faae25dd9fdbbf3fb61cb62f Mon Sep 17 00:00:00 2001
From: Jakub Hrozek <jhrozek@redhat.com>
Date: Tue, 15 Jun 2021 15:08:44 +0200
Subject: [PATCH 5/7] Check if the signature method is allowed in addition to
being valid (#54037)
Adds a new utility function lasso_allowed_signature_method() that checks
if the signature method is allowed. Previously, the code would only
check if the method was valid.
This new function is used whenever lasso_validate_signature_method was
previously used through lasso_ok_signature_method() which wraps both
validate and allowed.
lasso_allowed_signature_method() is also used on a couple of places,
notably lasso_query_verify_helper().
Related:
https://dev.entrouvert.org/issues/54037
---
lasso/id-ff/server.c | 4 ++--
lasso/saml-2.0/profile.c | 4 ++--
lasso/xml/tools.c | 11 ++++++++++-
lasso/xml/xml.c | 5 +++--
lasso/xml/xml.h | 13 +++++++++++++
5 files changed, 30 insertions(+), 7 deletions(-)
diff --git a/lasso/id-ff/server.c b/lasso/id-ff/server.c
index 2bf5b7a8c..98a6c0214 100644
--- a/lasso/id-ff/server.c
+++ b/lasso/id-ff/server.c
@@ -909,7 +909,7 @@ lasso_server_get_signature_context_for_provider(LassoServer *server,
private_context = &provider->private_data->signature_context;
}
- if (private_context && lasso_validate_signature_method(private_context->signature_method)) {
+ if (private_context && lasso_ok_signature_method(private_context->signature_method)) {
lasso_assign_signature_context(*signature_context, *private_context);
} else {
rc = lasso_server_get_signature_context(server, signature_context);
@@ -1014,7 +1014,7 @@ lasso_server_export_to_query_for_provider_by_name(LassoServer *server, const cha
provider_id, &context));
query = lasso_node_build_query(node);
goto_cleanup_if_fail_with_rc(query, LASSO_PROFILE_ERROR_BUILDING_QUERY_FAILED);
- if (lasso_validate_signature_method(context.signature_method)) {
+ if (lasso_ok_signature_method(context.signature_method)) {
lasso_assign_new_string(query, lasso_query_sign(query, context));
}
goto_cleanup_if_fail_with_rc(query,
diff --git a/lasso/saml-2.0/profile.c b/lasso/saml-2.0/profile.c
index 85f535ae0..412c391a6 100644
--- a/lasso/saml-2.0/profile.c
+++ b/lasso/saml-2.0/profile.c
@@ -1181,7 +1181,7 @@ lasso_saml20_profile_export_to_query(LassoProfile *profile, LassoNode *msg, char
"see #3.4.3 of saml-bindings-2.0-os");
}
}
- if (lasso_validate_signature_method(context.signature_method)) {
+ if (lasso_ok_signature_method(context.signature_method)) {
result = lasso_query_sign(unsigned_query, context);
goto_cleanup_if_fail_with_rc(result != NULL,
LASSO_PROFILE_ERROR_BUILDING_QUERY_FAILED);
@@ -1219,7 +1219,7 @@ lasso_saml20_profile_build_http_redirect(LassoProfile *profile,
goto_cleanup_if_fail_with_rc (url != NULL, LASSO_PROFILE_ERROR_UNKNOWN_PROFILE_URL);
/* if message is signed, remove XML signature, add query signature */
lasso_assign_signature_context(context, lasso_node_get_signature(msg));
- if (lasso_validate_signature_method(context.signature_method)) {
+ if (lasso_ok_signature_method(context.signature_method)) {
lasso_node_remove_signature(msg);
}
lasso_check_good_rc(lasso_saml20_profile_export_to_query(profile, msg, &query, context));
diff --git a/lasso/xml/tools.c b/lasso/xml/tools.c
index cf6dade09..077b1134d 100644
--- a/lasso/xml/tools.c
+++ b/lasso/xml/tools.c
@@ -499,7 +499,7 @@ lasso_query_sign(char *query, LassoSignatureContext context)
lasso_error_t rc = 0;
g_return_val_if_fail(query != NULL, NULL);
- g_return_val_if_fail(lasso_validate_signature_method(context.signature_method), NULL);
+ g_return_val_if_fail(lasso_ok_signature_method(context.signature_method), NULL);
key = context.signature_key;
sign_method = context.signature_method;
@@ -804,6 +804,12 @@ lasso_query_verify_helper(const char *signed_content, const char *b64_signature,
} else {
goto_cleanup_with_rc(LASSO_DS_ERROR_INVALID_SIGALG);
}
+
+ /* is the signature algo allowed */
+ goto_cleanup_if_fail_with_rc(
+ lasso_allowed_signature_method(method),
+ LASSO_DS_ERROR_INVALID_SIGALG);
+
/* decode signature */
signature = g_malloc(key_size+1);
goto_cleanup_if_fail_with_rc(
@@ -2434,6 +2440,9 @@ _lasso_xmlsec_load_key_from_buffer(const char *buffer, size_t length, const char
};
xmlSecKey *private_key = NULL;
+ /* is the signature algo allowed */
+ goto_cleanup_if_fail(lasso_allowed_signature_method(signature_method));
+
xmlSecErrorsDefaultCallbackEnableOutput(FALSE);
switch (signature_method) {
case LASSO_SIGNATURE_METHOD_RSA_SHA1:
diff --git a/lasso/xml/xml.c b/lasso/xml/xml.c
index f017ebbe3..49574de68 100644
--- a/lasso/xml/xml.c
+++ b/lasso/xml/xml.c
@@ -824,7 +824,7 @@ lasso_legacy_extract_and_copy_signature_parameters(LassoNode *node, LassoNodeCla
node_data->sign_method_offset);
private_key_file = G_STRUCT_MEMBER(char *, node, node_data->private_key_file_offset);
certificate_file = G_STRUCT_MEMBER(char *, node, node_data->certificate_file_offset);
- if (! lasso_validate_signature_method(signature_method)) {
+ if (! lasso_ok_signature_method(signature_method)) {
return FALSE;
}
if (lasso_node_set_signature(node,
@@ -1873,10 +1873,11 @@ lasso_node_impl_init_from_xml(LassoNode *node, xmlNode *xmlnode)
int what;
if (! lasso_get_integer_attribute(xmlnode, LASSO_SIGNATURE_METHOD_ATTRIBUTE,
BAD_CAST LASSO_LIB_HREF, &what,
- LASSO_SIGNATURE_METHOD_RSA_SHA1,
+ lasso_get_min_signature_method(),
LASSO_SIGNATURE_METHOD_LAST))
break;
method = what;
+
if (! lasso_get_integer_attribute(xmlnode, LASSO_SIGNATURE_METHOD_ATTRIBUTE,
BAD_CAST LASSO_LIB_HREF, &what, LASSO_SIGNATURE_TYPE_NONE+1,
LASSO_SIGNATURE_TYPE_LAST))
diff --git a/lasso/xml/xml.h b/lasso/xml/xml.h
index d0d3e1b0d..60c04eae5 100644
--- a/lasso/xml/xml.h
+++ b/lasso/xml/xml.h
@@ -132,6 +132,19 @@ lasso_validate_signature_method(LassoSignatureMethod signature_method)
&& signature_method < (LassoSignatureMethod)LASSO_SIGNATURE_METHOD_LAST;
}
+static inline gboolean
+lasso_allowed_signature_method(LassoSignatureMethod signature_method)
+{
+ return signature_method >= lasso_get_min_signature_method();
+}
+
+static inline gboolean
+lasso_ok_signature_method(LassoSignatureMethod signature_method)
+{
+ return lasso_validate_signature_method(signature_method) \
+ && lasso_allowed_signature_method(signature_method);
+}
+
typedef struct _LassoNode LassoNode;
typedef struct _LassoNodeClass LassoNodeClass;
typedef struct _LassoNodeClassData LassoNodeClassData;
--
2.26.3

View File

@ -0,0 +1,30 @@
From f70eee9ef7faa9ccfb6f815977431ae2e02260bc Mon Sep 17 00:00:00 2001
From: Jakub Hrozek <jhrozek@redhat.com>
Date: Wed, 16 Jun 2021 12:23:47 +0200
Subject: [PATCH 6/7] python: Skip the DSA key test unless SHA-1 is configured
(#54037)
lasso supports DSA-XXX only with SHA-1. The alternative is to use
DSA-SHA256.
---
bindings/python/tests/profiles_tests.py | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/bindings/python/tests/profiles_tests.py b/bindings/python/tests/profiles_tests.py
index 6ec612077..501fd9199 100755
--- a/bindings/python/tests/profiles_tests.py
+++ b/bindings/python/tests/profiles_tests.py
@@ -276,6 +276,10 @@ class LoginTestCase(unittest.TestCase):
def test07(self):
'''SAMLv2 SSO with DSA key for the IdP'''
+ default_sign_meth = lasso.getDefaultSignatureMethod()
+ if default_sign_meth != lasso.SIGNATURE_METHOD_RSA_SHA1:
+ self.skipTest("This test requires that lasso is compiled with SHA1 as the default signature method")
+
sp = lasso.Server(
os.path.join(dataDir, 'sp5-saml2/metadata.xml'),
os.path.join(dataDir, 'sp5-saml2/private-key.pem'))
--
2.26.3

View File

@ -0,0 +1,41 @@
From 1b0000e0163edc9d831894bf4aac7503f0294062 Mon Sep 17 00:00:00 2001
From: Jakub Hrozek <jhrozek@redhat.com>
Date: Fri, 18 Jun 2021 18:45:38 +0200
Subject: [PATCH 7/7] test13_test_lasso_server_load_metadata: Don't verify
signature if lasso is not configured with sha-1 (#54037)
---
tests/basic_tests.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/tests/basic_tests.c b/tests/basic_tests.c
index 0652abc28..470d64fc6 100644
--- a/tests/basic_tests.c
+++ b/tests/basic_tests.c
@@ -1974,6 +1974,14 @@ START_TEST(test13_test_lasso_server_load_metadata)
LassoServer *server = NULL;
GList *loaded_entity_ids = NULL;
GList blacklisted_1 = { .data = "https://identities.univ-jfc.fr/idp/prod", .next = NULL };
+ const gchar *trusted_roots = TESTSDATADIR "/rootCA.crt";
+
+ /* The IDP metadata file is signed with rsa-sha1, so verifying it would
+ * fail incase sha1 is not available
+ */
+ if (lasso_get_default_signature_method() != LASSO_SIGNATURE_METHOD_RSA_SHA1) {
+ trusted_roots = NULL;
+ }
check_not_null(server = lasso_server_new(
TESTSDATADIR "/idp5-saml2/metadata.xml",
@@ -1983,7 +1991,7 @@ START_TEST(test13_test_lasso_server_load_metadata)
block_lasso_logs;
check_good_rc(lasso_server_load_metadata(server, LASSO_PROVIDER_ROLE_IDP,
TESTSDATADIR "/metadata/renater-metadata.xml",
- TESTSDATADIR "/rootCA.crt",
+ trusted_roots,
&blacklisted_1, &loaded_entity_ids,
LASSO_SERVER_LOAD_METADATA_FLAG_DEFAULT));
unblock_lasso_logs;
--
2.26.3

View File

@ -1,16 +0,0 @@
diff --git a/autogen.sh b/autogen.sh
index 4fcacfc5..bf0e0d3a 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -27,7 +27,10 @@ cd "$srcdir"
DIE=1
}
-if automake-1.15 --version < /dev/null > /dev/null 2>&1; then
+if automake-1.16 --version < /dev/null > /dev/null 2>&1; then
+ AUTOMAKE=automake-1.16
+ ACLOCAL=aclocal-1.16
+elif automake-1.15 --version < /dev/null > /dev/null 2>&1; then
AUTOMAKE=automake-1.15
ACLOCAL=aclocal-1.15
elif automake-1.14 --version < /dev/null > /dev/null 2>&1; then

View File

@ -31,7 +31,7 @@
%endif %endif
%global configure_args %{nil} %global configure_args %{nil}
%global configure_args %{configure_args} %global configure_args %{configure_args} --with-default-sign-algo=rsa-sha256 --with-min-hash-algo=sha256
%if !%{with_java} %if !%{with_java}
%global configure_args %{configure_args} --disable-java %global configure_args %{configure_args} --disable-java
@ -59,7 +59,7 @@
Summary: Liberty Alliance Single Sign On Summary: Liberty Alliance Single Sign On
Name: lasso Name: lasso
Version: 2.7.0 Version: 2.7.0
Release: 3%{?dist} Release: 4%{?dist}
License: GPLv2+ License: GPLv2+
URL: http://lasso.entrouvert.org/ URL: http://lasso.entrouvert.org/
Source: http://dev.entrouvert.org/lasso/lasso-%{version}.tar.gz Source: http://dev.entrouvert.org/lasso/lasso-%{version}.tar.gz
@ -88,6 +88,14 @@ Requires: xmlsec1
# and https://dev.entrouvert.org/issues/51418 # and https://dev.entrouvert.org/issues/51418
Obsoletes: java-lasso < %{version}-%{release} Obsoletes: java-lasso < %{version}-%{release}
Patch0001: 0001-Fix-lasso_query_sign-HMAC-other-than-SHA1-54037.patch
Patch0002: 0002-tests-Move-test08_lasso_key-and-test07_saml2_query_v.patch
Patch0003: 0003-Make-the-default-signature-method-and-the-minimal-ha.patch
Patch0004: 0004-Mass-replace-LASSO_SIGNATURE_METHOD_RSA_SHA1-with-la.patch
Patch0005: 0005-Check-if-the-signature-method-is-allowed-in-addition.patch
Patch0006: 0006-python-Skip-the-DSA-key-test-unless-SHA-1-is-configu.patch
Patch0007: 0007-test13_test_lasso_server_load_metadata-Don-t-verify-.patch
%description %description
Lasso is a library that implements the Liberty Alliance Single Sign On Lasso is a library that implements the Liberty Alliance Single Sign On
standards, including the SAML and SAML2 specifications. It allows to handle standards, including the SAML and SAML2 specifications. It allows to handle
@ -313,6 +321,10 @@ rm -fr %{buildroot}%{_defaultdocdir}/%{name}
%endif %endif
%changelog %changelog
* Thu Jun 24 2021 Jakub Hrozek <jhrozek@redhat.com> - 2.7.0-4
- Resolves: rhbz#1935987 - lasso implements and/or uses the deprecated
SHA-1 algorithm by default
* Wed Jun 16 2021 Mohan Boddu <mboddu@redhat.com> - 2.7.0-3 * Wed Jun 16 2021 Mohan Boddu <mboddu@redhat.com> - 2.7.0-3
- Rebuilt for RHEL 9 BETA for openssl 3.0 - Rebuilt for RHEL 9 BETA for openssl 3.0
Related: rhbz#1971065 Related: rhbz#1971065