CVE-2024-32002 Git's recursive clones on case-insensitive filesystems that support symlinks are susceptible to Remote Code Execution

2024-05-1418:40:46

CWE-22

CWE-434

GitHub_M

github.com

git

vulnerability

remote code execution

filesystems

symlinks

submodules

bug

symlink support

9 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

8.9 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

40.2%

JSON

Git is a revision control system. Prior to versions 2.45.1, 2.44.1, 2.43.4, 2.42.2, 2.41.1, 2.40.2, and 2.39.4, repositories with submodules can be crafted in a way that exploits a bug in Git whereby it can be fooled into writing files not into the submodule’s worktree but into a .git/ directory. This allows writing a hook that will be executed while the clone operation is still running, giving the user no opportunity to inspect the code that is being executed. The problem has been patched in versions 2.45.1, 2.44.1, 2.43.4, 2.42.2, 2.41.1, 2.40.2, and 2.39.4. If symbolic link support is disabled in Git (e.g. via git config --global core.symlinks false), the described attack won’t work. As always, it is best to avoid cloning repositories from untrusted sources.

CNA Affected

[
  {
    "vendor": "git",
    "product": "git",
    "versions": [
      {
        "version": "= 2.45.0",
        "status": "affected"
      },
      {
        "version": "= 2.44.0",
        "status": "affected"
      },
      {
        "version": ">= 2.43.0, < 2.43.4",
        "status": "affected"
      },
      {
        "version": ">= 2.42.0, < 2.42.2",
        "status": "affected"
      },
      {
        "version": "= 2.41.0",
        "status": "affected"
      },
      {
        "version": ">= 2.40.0, < 2.40.2",
        "status": "affected"
      },
      {
        "version": "< 2.39.4",
        "status": "affected"
      }
    ]
  }
]