An improper neutralization of special elements vulnerability was identified in GitHub Enterprise Server that allowed an authenticated Management Console administrator to execute arbitrary OS commands via shell metacharacter injection in proxy configuration fields such as http_proxy. Exploitation of this vulnerability required access to the GitHub Enterprise Server instance and administrator privileges to the Management Console. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.21 and was fixed in versions 3.20.1, 3.19.5, 3.18.8, 3.17.14, 3.16.17, 3.15.21, 3.14.26. This vulnerability was reported via the GitHub Bug Bounty program.
| Vendor | Product | Versions |
|---|---|---|
| github | github enterprise | 3.20.0, 3.19.0, 3.18.0, 3.17.0, 3.16.0, 3.15.0, 3.14.0 |
Downstream vendors/products affected by this vulnerability
| Vendor | Product | Source | Confidence |
|---|---|---|---|
| microsoft | github enterprise | cert_advisory | 90% |
Updated severity to HIGH and marked the vulnerability as actively exploited with an exploit available.
Updated severity to CRITICAL, corrected exploit availability to false, and provided a new description with additional details.
Initial creation
