CVE-2023-25815

In Git for Windows, the Windows port of Git, no localized messages are shipped with the installer. As a consequence, Git is expected not to localize messages at all, and skips the gettext initialization. However, due to a change in MINGW-packages, the `gettext()` function's implicit initialization no longer uses the runtime prefix but uses the hard-coded path `C:\mingw64\share\locale` to look for localized messages. And since any authenticated user has the permission to create folders in `C:\` (and since `C:\mingw64` does not typically exist), it is possible for low-privilege users to place fake messages in that location where `git.exe` will pick them up in version 2.40.1. This vulnerability is relatively hard to exploit and requires social engineering. For example, a legitimate message at the end of a clone could be maliciously modified to ask the user to direct their web browser to a malicious website, and the user might think that the message comes from Git and is legitimate. It does require local write access by the attacker, though, which makes this attack vector less likely. Version 2.40.1 contains a patch for this issue. Some workarounds are available. Do not work on a Windows machine with shared accounts, or alternatively create a `C:\mingw64` folder and leave it empty. Users who have administrative rights may remove the permission to create folders in `C:\`.
Configurations

Configuration 1 (hide)

cpe:2.3:a:git_for_windows_project:git_for_windows:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*

History

27 Dec 2023, 10:15

Type Values Removed Values Added
References
  • () https://security.gentoo.org/glsa/202312-15 -

12 May 2023, 05:15

Type Values Removed Values Added
References
  • (MISC) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RKOXOAZ42HLXHXTW6JZI4L5DAIYDTYCU/ -
CWE CWE-22

04 May 2023, 21:25

Type Values Removed Values Added
References (MISC) https://axcheron.github.io/exploit-101-format-strings/#writing-to-the-stack - (MISC) https://axcheron.github.io/exploit-101-format-strings/#writing-to-the-stack - Product
References (MISC) http://www.openwall.com/lists/oss-security/2023/04/25/2 - (MISC) http://www.openwall.com/lists/oss-security/2023/04/25/2 - Mailing List, Third Party Advisory
References (MISC) https://github.com/git-for-windows/git/security/advisories/GHSA-9w66-8mq8-5vm8 - (MISC) https://github.com/git-for-windows/git/security/advisories/GHSA-9w66-8mq8-5vm8 - Vendor Advisory
References (MISC) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YFZWGQKB6MM5MNF2DLFTD7KS2KWPICKL/ - (MISC) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YFZWGQKB6MM5MNF2DLFTD7KS2KWPICKL/ - Mailing List, Third Party Advisory
References (MISC) https://github.com/git-for-windows/git/releases/tag/v2.40.1.windows.1 - (MISC) https://github.com/git-for-windows/git/releases/tag/v2.40.1.windows.1 - Release Notes
References (MISC) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PI7FZ4NNR5S5J5K6AMVQBH2JFP6NE4L7/ - (MISC) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PI7FZ4NNR5S5J5K6AMVQBH2JFP6NE4L7/ - Mailing List, Third Party Advisory
References (MISC) https://github.com/msys2/MINGW-packages/pull/10461 - (MISC) https://github.com/msys2/MINGW-packages/pull/10461 - Issue Tracking, Patch
References (MISC) https://pubs.opengroup.org/onlinepubs/9699919799/functions/printf.html - (MISC) https://pubs.opengroup.org/onlinepubs/9699919799/functions/printf.html - Product
First Time Git For Windows Project git For Windows
Git For Windows Project
Fedoraproject
Fedoraproject fedora
CWE CWE-22
CPE cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*
cpe:2.3:a:git_for_windows_project:git_for_windows:*:*:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 2.2

01 May 2023, 06:15

Type Values Removed Values Added
References
  • (MISC) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YFZWGQKB6MM5MNF2DLFTD7KS2KWPICKL/ -

28 Apr 2023, 05:15

Type Values Removed Values Added
References
  • (MISC) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PI7FZ4NNR5S5J5K6AMVQBH2JFP6NE4L7/ -

25 Apr 2023, 21:15

Type Values Removed Values Added
New CVE

Information

Published : 2023-04-25 20:15

Updated : 2023-12-27 10:15


NVD link : CVE-2023-25815

Mitre link : CVE-2023-25815

CVE.ORG link : CVE-2023-25815


JSON object : View

Products Affected

git_for_windows_project

  • git_for_windows

fedoraproject

  • fedora
CWE
CWE-134

Use of Externally-Controlled Format String

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')