BC Security Empire before 5.9.3 is vulnerable to a path traversal issue that can lead to remote code execution. A remote, unauthenticated attacker can exploit this vulnerability over HTTP by acting as a normal agent, completing all cryptographic handshakes, and then triggering an upload of payload data containing a malicious path.
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
| Link | Tags |
|---|---|
| https://aceresponder.com/blog/exploiting-empire-c2-framework | technical description |
| https://github.com/ACE-Responder/Empire-C2-RCE-PoC | exploit |
| https://github.com/BC-SECURITY/Empire/blob/8283bbc77250232eb493bf1f9104fdd0d468962a/CHANGELOG.md?plain=1#L102 | vendor advisory |
| https://vulncheck.com/advisories/empire-unauth-rce | third party advisory |