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How the CVE Works
The vulnerability in `gix-transport` (prior to v0.36.1) allows command injection via a malicious `ssh://` URL containing a crafted `-oProxyCommand` parameter. Attackers can exploit this by injecting shell commands through the URL, such as gix clone 'ssh://-oProxyCommand=open$IFS...'. The `$IFS` (Internal Field Separator) bypasses input sanitization, leading to arbitrary command execution. This flaw resembles SSH argument injection, where improper input validation permits unintended command execution.
DailyCVE Form
Platform: Rust (crate)
Version: < 0.36.1
Vulnerability: Command Injection
Severity: Moderate
Date: 2025-07-28
Prediction: Patch expected by 2025-08-04
What Undercode Say
Check crate version
cargo tree | grep gix-transport
Exploit PoC (simulated)
gix clone 'ssh://-oProxyCommand=echo${IFS}malicious'
How Exploit
- Craft malicious `ssh://` URL with
-oProxyCommand. - Leverage `$IFS` to bypass sanitization.
- Execute arbitrary OS commands.
Protection from this CVE
- Upgrade to
gix-transport >= 0.36.1. - Sanitize URL inputs.
- Restrict SSH protocol parameters.
Impact
- Remote code execution.
- Compromise of client systems.
- Data exfiltration.
Sources:
Reported By: github.com
Extra Source Hub:
Undercode
