GitHub Advisoryadvisory · npm
GHSA-hxwm-x553-x359 Arbitrary Command Injection due to Improper Command Sanitization
MEDIUM
Official page ↗
- Ecosystem
- npm
- Packages
- @npmcli/git
- Severity
- Moderate
- Weaknesses
- CWE-78
- Reviewed
- 2021-08-02
Affected packages
• npm @npmcli/git: < 2.0.8 → fixed in 2.0.8
Description
Summary
There exists a command injection vulnerability in `npmcli/git` versions <2.0.8 which may result in arbitrary shell command execution due to improper argument sanitization when `npmcli/git` is used to execute Git commands based on user controlled input.
The impact of this issue is possible Arbitrary Command Injection when `npmcli/git` is run with untrusted (user controlled) Git command arguments.
Impact
Arbitrary Command Injection
Details
`npmcli/git` prior to release `2.0.8` passed user controlled input as arguments to a shell command without properly sanitizing this input. Passing unsanitized input to a shell can lead to arbitrary command injection. For example passing `git+https://github.com/npm/git; echo hello world` would trigger the shell execution of `echo hello world`.
This issue was remediated by no longer running `npmcli/git` git commands through an intermediate shell.
Patches
This issue has been patched in release `2.0.8`
Acknowledgements
This report was reported to us by @tyage (Ierae Security) through the GitHub Bug Bounty Program.
Related
Weakness · CWE (1)
- CWE-78 Improper Neutralization of Special Elements used in an OS Command weakness