Command Injection Affecting git package, versions <1.11.0
Threat Intelligence
Exploit Maturity
Proof of concept
EPSS
0.21% (60th
percentile)
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Test your applications- Snyk ID SNYK-RUBY-GIT-2421270
- published 19 Apr 2022
- disclosed 11 Mar 2022
- credit Alessio Della Libera of Snyk Research Team
Introduced: 11 Mar 2022
CVE-2022-25648 Open this link in a new tabHow to fix?
Upgrade git to version 1.11.0 or higher.
Overview
git is a Ruby library that can be used to create, read and manipulate Git repositories by wrapping system calls to the git binary.
Affected versions of this package are vulnerable to Command Injection via git argument injection. When calling the fetch(remote = 'origin', opts = {}) function, the remote parameter is passed to the git fetch subcommand in a way that additional flags can be set. The additional flags can be used to perform a command injection.
PoC
require "git"
g = Git.init('project')
origin = "--upload-pack=touch ./HELLO1;"
g.fetch(origin, {:ref => 'some/ref/head'} )
# ls -la
References
CVSS Scores
version 3.1