CVE-2022-24765

high

Description

Git for Windows is a fork of Git containing Windows-specific patches. This vulnerability affects users working on multi-user machines, where untrusted parties have write access to the same hard disk. Those untrusted parties could create the folder `C:\.git`, which would be picked up by Git operations run supposedly outside a repository while searching for a Git directory. Git would then respect any config in said Git directory. Git Bash users who set `GIT_PS1_SHOWDIRTYSTATE` are vulnerable as well. Users who installed posh-gitare vulnerable simply by starting a PowerShell. Users of IDEs such as Visual Studio are vulnerable: simply creating a new project would already read and respect the config specified in `C:\.git\config`. Users of the Microsoft fork of Git are vulnerable simply by starting a Git Bash. The problem has been patched in Git for Windows v2.35.2. Users unable to upgrade may create the folder `.git` on all drives where Git commands are run, and remove read/write access from those folders as a workaround. Alternatively, define or extend `GIT_CEILING_DIRECTORIES` to cover the _parent_ directory of the user profile, e.g. `C:\Users` if the user profile is located in `C:\Users\my-user-name`.

References

https://support.apple.com/kb/HT213261

https://security.gentoo.org/glsa/202312-15

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YROCMBWYFKRSS64PO6FUNM6L7LKBUKVW/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UDZRZAL7QULOB6V7MKT66MOMWJLBJPX4/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TRZG5CDUQ27OWTPC5MQOR4UASNXHWEZS/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SLP42KIZ6HACTVZMZLJLFJQ4W2XYT27M/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HVOLER2PIGMHPQMDGG4RDE2KZB74QLA2/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DIKWISWUDFT2FAITYIA6372BVLH3OOOC/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DDI325LOO2XBDDKLINOAQJEG6MHAURZE/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BENQYTDGUL6TF3UALY6GSIEXIHUIYNWM/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5PTN5NYEHYN2OQSHSAMCNICZNK2U4QH6/

https://lists.debian.org/debian-lts-announce/2022/12/msg00025.html

https://github.com/git-for-windows/git/security/advisories/GHSA-vw2c-22j4-2fh2

https://git-scm.com/docs/git#Documentation/git.txt-codeGITCEILINGDIRECTORIEScode

https://git-scm.com/book/en/v2/Appendix-A%3A-Git-in-Other-Environments-Git-in-Bash

http://www.openwall.com/lists/oss-security/2022/04/12/7

http://seclists.org/fulldisclosure/2022/May/31

Details

Source: Mitre, NVD

Published: 2022-04-12

Risk Information

CVSS v2

Base Score: 6.9

Vector: CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High