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Fix CVE-2024-6472 remove ability to trust not validated macro signatures in high security

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Resolves: RHEL-52948
This commit is contained in:
Eike Rathke 2024-08-15 13:37:05 +02:00
parent 95b2641468
commit cdf4c73ea2
2 changed files with 85 additions and 1 deletions
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79
0001-CVE-2024-6472-remove-ability-to-trust-not-validated-macro-signatur.patch Normal file
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@ -0,0 +1,79 @@
From 1dec4285bd4c59c23a6a9a56cee9a66ebe0ba6c3 Mon Sep 17 00:00:00 2001
Message-ID: <1dec4285bd4c59c23a6a9a56cee9a66ebe0ba6c3.1723721182.git.erack@redhat.com>
From: Sarper Akdemir <sarper.akdemir@allotropia.de>
Date: Tue, 11 Jun 2024 12:39:36 +0200
Subject: [PATCH] remove ability to trust not validated macro signatures in
high security
MIME-Version: 1.0
Content-Type: multipart/mixed; boundary="------------erAck-patch-parts"
This is a multi-part message in MIME format.
--------------erAck-patch-parts
Content-Type: text/plain; charset=UTF-8; format=fixed
Content-Transfer-Encoding: 8bit
Giving the user the option to determine if they should trust an
invalid signature in HIGH macro security doesn't make sense.
CommonName of the signature is the most prominent feature presented
and the CommonName of a certificate can be easily forged for an
invalid signature, tricking the user into accepting an invalid
signature.
in the HIGH macro security setting only show the pop-up to
enable/disable signed macro if the certificate signature can be
validated.
cherry-picked without UI/String altering bits for 24-2
Change-Id: Ia766fb701660160ee5dc9f6e077f4012a44ce721
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/168667
Tested-by: Jenkins
Reviewed-by: Sarper Akdemir <sarper.akdemir@allotropia.de>
(cherry picked from commit 2beaa3be3829303e948d401f492dbfd239d60aad)
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/169525
Reviewed-by: Thorsten Behrens <thorsten.behrens@allotropia.de>
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/171306
Reviewed-by: Caolán McNamara <caolan.mcnamara@collabora.com>
Tested-by: Caolán McNamara <caolan.mcnamara@collabora.com>
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/171314
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/171315
---
sfx2/source/doc/docmacromode.cxx | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
--------------erAck-patch-parts
Content-Type: text/x-patch; name="0001-remove-ability-to-trust-not-validated-macro-signatur.patch"
Content-Transfer-Encoding: 8bit
Content-Disposition: attachment; filename="0001-remove-ability-to-trust-not-validated-macro-signatur.patch"
diff --git a/sfx2/source/doc/docmacromode.cxx b/sfx2/source/doc/docmacromode.cxx
index 919033cbaf5d..33d546f2920a 100644
--- a/sfx2/source/doc/docmacromode.cxx
+++ b/sfx2/source/doc/docmacromode.cxx
@@ -228,14 +228,18 @@ namespace sfx2
// check whether the document is signed with trusted certificate
if ( nMacroExecutionMode != MacroExecMode::FROM_LIST )
{
+ SignatureState nSignatureState = m_xData->m_rDocumentAccess.getScriptingSignatureState();
+
// the trusted macro check will also retrieve the signature state ( small optimization )
const SvtSecurityOptions aSecOption;
const bool bAllowUIToAddAuthor = nMacroExecutionMode != MacroExecMode::FROM_LIST_AND_SIGNED_NO_WARN
&& (nMacroExecutionMode == MacroExecMode::ALWAYS_EXECUTE
- || !aSecOption.IsReadOnly(SvtSecurityOptions::EOption::MacroTrustedAuthors));
+ || !aSecOption.IsReadOnly(SvtSecurityOptions::EOption::MacroTrustedAuthors))
+ && (nMacroExecutionMode != MacroExecMode::FROM_LIST_AND_SIGNED_WARN
+ || nSignatureState == SignatureState::OK);
+
const bool bHasTrustedMacroSignature = m_xData->m_rDocumentAccess.hasTrustedScriptingSignature(bAllowUIToAddAuthor);
- SignatureState nSignatureState = m_xData->m_rDocumentAccess.getScriptingSignatureState();
if ( nSignatureState == SignatureState::BROKEN )
{
if (!bAllowUIToAddAuthor)
--------------erAck-patch-parts--

7
libreoffice.spec
View File

@ -57,7 +57,7 @@ Summary: Free Software Productivity Suite
Name: libreoffice
Epoch: 1
Version: %{libo_version}.1
Release: 13%{?libo_prerelease}%{?dist}
Release: 14%{?libo_prerelease}%{?dist}
License: (MPLv1.1 or LGPLv3+) and LGPLv3 and LGPLv2+ and BSD and (MPLv1.1 or GPLv2 or LGPLv2 or Netscape) and Public Domain and ASL 2.0 and MPLv2.0 and CC0
URL: http://www.libreoffice.org/
@ -297,6 +297,7 @@ Patch41: 0004-CVE-2023-6186-reuse-AllowedLinkProtocolFromDocument-in-writer.patc
Patch42: 0005-CVE-2023-6186-reuse-AllowedLinkProtocolFromDocument-in-impress-dra.patch
Patch43: 0006-CVE-2023-6186-backporting.patch
Patch44: 0001-CVE-2024-3044-add-notify-for-script-use.patch
Patch45: 0001-CVE-2024-6472-remove-ability-to-trust-not-validated-macro-signatur.patch
# not upstreamed
Patch500: 0001-disable-libe-book-support.patch
@ -2300,6 +2301,10 @@ gtk-update-icon-cache -q %{_datadir}/icons/hicolor &>/dev/null || :
%{_includedir}/LibreOfficeKit
%changelog
* Thu Aug 15 2024 Eike Rathke <erack@redhat.com> - 1:7.1.8.1-14
- Fix CVE-2024-6472 remove ability to trust not validated macro signatures in
high security
* Fri Jun 07 2024 Eike Rathke <erack@redhat.com> - 1:7.1.8.1-13
- Fix CVE-2024-3044 add notify for script use