CVE-2018-11235
Published: August 31, 2023Last modified: August 31, 2023
Description
In Git before 2.13.7, 2.14.x before 2.14.4, 2.15.x before 2.15.2, 2.16.x before 2.16.4, and 2.17.x before 2.17.1, remote code execution can occur. With a crafted .gitmodules file, a malicious project can execute an arbitrary script on a machine that runs "git clone --recurse-submodules" because submodule "names" are obtained from this file, and then appended to $GIT_DIR/modules, leading to directory traversal with "../" in a name. Finally, post-checkout hooks from a submodule are executed, bypassing the intended design in which hooks are not obtained from a remote server.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.8 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | NONE |
| User interaction | REQUIRED |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity impact | HIGH |
| Availability impact | HIGH |
| Vector | CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | git | Not affected (2.38.5-r0) |
| Stream | git | Not affected (2.42.0-r0) |
References
- http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00003.html
- http://www.securityfocus.com/bid/104345
- http://www.securitytracker.com/id/1040991
- https://access.redhat.com/errata/RHSA-2018:1957
- https://access.redhat.com/errata/RHSA-2018:2147
- https://blogs.msdn.microsoft.com/devops/2018/05/29/announcing-the-may-2018-git-security-vulnerability/
- https://marc.info/?l=git&m=152761328506724&w=2
- https://security.gentoo.org/glsa/201805-13
- https://usn.ubuntu.com/3671-1/
- https://www.debian.org/security/2018/dsa-4212
- https://www.exploit-db.com/exploits/44822/