- Allow only X509 certs to verify the SAML token signature.

This commit is contained in:
eabdullin 2023-09-21 13:26:43 +03:00
parent 574359d30a
commit 80346230b2
2 changed files with 43 additions and 1 deletions

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@ -0,0 +1,37 @@
From 2dc6f33e455c7d0dceb2d444632b35806613c510 Mon Sep 17 00:00:00 2001
From: Miroslav Rezanina <mrezanin@redhat.com>
Date: Thu, 7 Sep 2023 02:27:50 -0400
Subject: [PATCH] VGAuth: Allow only X509 certs to verify the SAML token
signature.
RH-Author: Miroslav Rezanina <mrezanin@redhat.com>
RH-Bugzilla: 2236544
RH-CVE: CVE-2023-20900
Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
---
open-vm-tools/vgauth/serviceImpl/saml-xmlsec1.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/open-vm-tools/vgauth/serviceImpl/saml-xmlsec1.c b/open-vm-tools/vgauth/serviceImpl/saml-xmlsec1.c
index f5541a9a..0b2a945b 100644
--- a/open-vm-tools/vgauth/serviceImpl/saml-xmlsec1.c
+++ b/open-vm-tools/vgauth/serviceImpl/saml-xmlsec1.c
@@ -1335,7 +1335,14 @@ VerifySignature(xmlDocPtr doc,
*/
bRet = RegisterID(xmlDocGetRootElement(doc), "ID");
if (bRet == FALSE) {
- g_warning("failed to register ID\n");
+ g_warning("Failed to register ID\n");
+ goto done;
+ }
+
+ /* Use only X509 certs to validate the signature */
+ if (xmlSecPtrListAdd(&(dsigCtx->keyInfoReadCtx.enabledKeyData),
+ BAD_CAST xmlSecKeyDataX509Id) < 0) {
+ g_warning("Failed to limit allowed key data\n");
goto done;
}
--
2.39.3

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@ -32,7 +32,7 @@
Name: open-vm-tools
Version: %{toolsversion}
Release: 2%{?dist}.2.alma.1
Release: 2%{?dist}.3.alma.1
Summary: Open Virtual Machine Tools for virtual machines hosted on VMware
License: GPLv2
URL: https://github.com/vmware/%{name}
@ -57,6 +57,8 @@ Patch1: ovt-Remove-some-dead-code.patch
# Patches were taken from:
# https://github.com/vmware/open-vm-tools/commit/9d458c53a7a656d4d1ba3a28d090cce82ac4af0e.patch
Patch2: Track-Linux-filesystem-id-FSID-for-quiesced-frozen-filesystems.patch
# https://gitlab.com/redhat/centos-stream/rpms/open-vm-tools/-/raw/fd4d578cf736199d35bd8531b9a53d2fcabc22ae/ovt-VGAuth-Allow-only-X509-certs-to-verify-the-SAML-toke.patch
Patch3: ovt-VGAuth-Allow-only-X509-certs-to-verify-the-SAML-toke.patch
BuildRequires: autoconf
BuildRequires: automake
@ -415,6 +417,9 @@ fi
%{_bindir}/vmware-vgauth-smoketest
%changelog
* Thu Sep 21 2023 Eduard Abdullin <eabdullin@almalinux.org> - 12.1.5-1.el8_8.3.alma.1
- Allow only X509 certs to verify the SAML token signature.
* Tue Sep 12 2023 Eduard Abdullin <eabdullin@almalinux.org> - 12.1.5-1.el8_8.2.alma.1
- Track Linux filesystem id (FSID) for quiesced (frozen) filesystems