The MS-Logon authentication scheme in UltraVNC (aka Ultr@VNC) 1.0.1 uses weak encryption (XOR) for challenge/response, which allows remote attackers to gain privileges by sniffing and decrypting passwords.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Ultravnc | Ultravnc | 1.0.1 (including) | 1.0.1 (including) |
References
- http://archives.neohapsis.com/archives/bugtraq/2006-05/0057.html
- http://www.securityfocus.com/bid/17824
- https://exchange.xforce.ibmcloud.com/vulnerabilities/26283
- http://archives.neohapsis.com/archives/bugtraq/2006-05/0057.html
- http://www.securityfocus.com/bid/17824
- https://exchange.xforce.ibmcloud.com/vulnerabilities/26283