70 lines
3.1 KiB
Diff
70 lines
3.1 KiB
Diff
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From ae1bd20a2d4d7b7d64edc3b06d7f901c05175b7d Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Caol=C3=A1n=20McNamara?= <caolanm@redhat.com>
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Date: Mon, 20 Dec 2021 17:05:44 +0000
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Subject: [PATCH] only use X509Data
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Change-Id: I52e6588f5fac04bb26d77c1f3af470db73e41f72
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Reviewed-on: https://gerrit.libreoffice.org/c/core/+/127193
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Tested-by: Jenkins
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Reviewed-by: Miklos Vajna <vmiklos@collabora.com>
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(cherry picked from commit be446d81e07b5499152efeca6ca23034e51ea5ff)
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Reviewed-on: https://gerrit.libreoffice.org/c/core/+/127178
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Reviewed-by: Adolfo Jayme Barrientos <fitojb@ubuntu.com>
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(cherry picked from commit b0404f80577de9ff69e58390c6f6ef949fdb0139)
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---
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.../source/xmlsec/mscrypt/xmlsignature_mscryptimpl.cxx | 6 ++++++
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xmlsecurity/source/xmlsec/nss/xmlsignature_nssimpl.cxx | 6 ++++++
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2 files changed, 12 insertions(+)
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diff --git a/xmlsecurity/source/xmlsec/mscrypt/xmlsignature_mscryptimpl.cxx b/xmlsecurity/source/xmlsec/mscrypt/xmlsignature_mscryptimpl.cxx
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index db400e6..39f9d7f 100644
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--- a/xmlsecurity/source/xmlsec/mscrypt/xmlsignature_mscryptimpl.cxx
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+++ b/xmlsecurity/source/xmlsec/mscrypt/xmlsignature_mscryptimpl.cxx
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@@ -21,6 +21,8 @@
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#include <sal/log.hxx>
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#include <rtl/uuid.h>
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+#include <xmlsec/mscng/x509.h>
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+
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#include <com/sun/star/xml/crypto/SecurityOperationStatus.hpp>
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#include <com/sun/star/xml/crypto/XXMLSignature.hpp>
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@@ -229,6 +231,10 @@ SAL_CALL XMLSignature_MSCryptImpl::validate(
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// We do certificate verification ourselves.
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pDsigCtx->keyInfoReadCtx.flags |= XMLSEC_KEYINFO_FLAGS_X509DATA_DONT_VERIFY_CERTS;
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+ // limit possible key data to valid X509 certificates only, no KeyValues
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+ if (xmlSecPtrListAdd(&(pDsigCtx->keyInfoReadCtx.enabledKeyData), BAD_CAST xmlSecMSCngKeyDataX509GetKlass()) < 0)
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+ throw RuntimeException("failed to limit allowed key data");
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+
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//Verify signature
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//The documentation says that the signature is only valid if the return value is 0 (that is, not < 0)
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//AND pDsigCtx->status == xmlSecDSigStatusSucceeded. That is, we must not make any assumptions, if
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diff --git a/xmlsecurity/source/xmlsec/nss/xmlsignature_nssimpl.cxx b/xmlsecurity/source/xmlsec/nss/xmlsignature_nssimpl.cxx
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index 827580b..8f4d6f8 100644
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--- a/xmlsecurity/source/xmlsec/nss/xmlsignature_nssimpl.cxx
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+++ b/xmlsecurity/source/xmlsec/nss/xmlsignature_nssimpl.cxx
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@@ -19,6 +19,8 @@
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#include <sal/config.h>
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+#include <xmlsec/nss/x509.h>
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+
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#include <xmlelementwrapper_xmlsecimpl.hxx>
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#include <xmlsec/xmlstreamio.hxx>
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#include <xmlsec/errorcallback.hxx>
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@@ -243,6 +245,10 @@ SAL_CALL XMLSignature_NssImpl::validate(
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// We do certificate verification ourselves.
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pDsigCtx->keyInfoReadCtx.flags |= XMLSEC_KEYINFO_FLAGS_X509DATA_DONT_VERIFY_CERTS;
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+ // limit possible key data to valid X509 certificates only, no KeyValues
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+ if (xmlSecPtrListAdd(&(pDsigCtx->keyInfoReadCtx.enabledKeyData), BAD_CAST xmlSecNssKeyDataX509GetKlass()) < 0)
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+ throw RuntimeException("failed to limit allowed key data");
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+
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//Verify signature
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int rs = xmlSecDSigCtxVerify( pDsigCtx.get() , pNode );
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--
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2.33.1
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