CVE-2023-29007 Arbitrary configuration injection via `git submodule deinit`

2023-04-2520:09:52

CWE-74

GitHub_M

www.cve.org

arbitrary configuration injection

git submodule deinit

remote code execution

vulnerability

security advisory

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

8.2

Confidence

High

EPSS

0.005

Percentile

77.3%

JSON

Git is a revision control system. Prior to versions 2.30.9, 2.31.8, 2.32.7, 2.33.8, 2.34.8, 2.35.8, 2.36.6, 2.37.7, 2.38.5, 2.39.3, and 2.40.1, a specially crafted .gitmodules file with submodule URLs that are longer than 1024 characters can used to exploit a bug in config.c::git_config_copy_or_rename_section_in_file(). This bug can be used to inject arbitrary configuration into a user’s $GIT_DIR/config when attempting to remove the configuration section associated with that submodule. When the attacker injects configuration values which specify executables to run (such as core.pager, core.editor, core.sshCommand, etc.) this can lead to a remote code execution. A fix A fix is available in versions 2.30.9, 2.31.8, 2.32.7, 2.33.8, 2.34.8, 2.35.8, 2.36.6, 2.37.7, 2.38.5, 2.39.3, and 2.40.1. As a workaround, avoid running git submodule deinit on untrusted repositories or without prior inspection of any submodule sections in $GIT_DIR/config.

CNA Affected

[
  {
    "vendor": "git",
    "product": "git",
    "versions": [
      {
        "version": "< 2.30.9",
        "status": "affected"
      },
      {
        "version": ">= 2.31.0, < 2.31.8",
        "status": "affected"
      },
      {
        "version": ">= 2.32.0, < 2.32.7",
        "status": "affected"
      },
      {
        "version": ">= 2.33.0, < 2.33.8",
        "status": "affected"
      },
      {
        "version": ">= 2.34.0, < 2.34.8",
        "status": "affected"
      },
      {
        "version": ">= 2.35.0, < 2.35.8",
        "status": "affected"
      },
      {
        "version": ">= 2.36.0, < 2.36.6",
        "status": "affected"
      },
      {
        "version": ">= 2.37.0, < 2.37.7",
        "status": "affected"
      },
      {
        "version": ">= 2.38.0, < 2.38.5",
        "status": "affected"
      },
      {
        "version": ">= 2.39.0, < 2.39.3",
        "status": "affected"
      },
      {
        "version": ">= 2.40.0, < 2.40.1",
        "status": "affected"
      }
    ]
  }
]