ThinVNC 1.0b1 is vulnerable to arbitrary file read, which leads to a compromise of the VNC server. The vulnerability exists even when authentication is turned on during the deployment of the VNC server. The password for authentication is stored in cleartext in a file that can be read via a ../../ThinVnc.ini directory traversal attack vector.
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://redteamzone.com/ThinVNC/ | third party advisory exploit |
| https://github.com/shashankmangal2/Exploits/blob/master/ThinVNC-RemoteAccess/POC.py | broken link |
| https://github.com/bewest/thinvnc/issues/5 | third party advisory |
| http://packetstormsecurity.com/files/154896/ThinVNC-1.0b1-Authentication-Bypass.html | exploit vdb entry third party advisory |