VulnerabilityModified
CVE-2006-2206
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.
HIGH 10.0EPSS 2.14%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.14%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 2.0
- 10.0 HIGHAV:N/AC:L/Au:N/C:C/I:C/A:C
- EPSS
- 2.14% probability · 81th percentile
- CISA KEV
- Not listed
- Affected
- ultravnc/ultravnc
- Source
- cve@mitre.org
References
- http://archives.neohapsis.com/archives/bugtraq/2006-05/0057.html
- http://www.securityfocus.com/bid/17824Exploit
- https://exchange.xforce.ibmcloud.com/vulnerabilities/26283
- http://archives.neohapsis.com/archives/bugtraq/2006-05/0057.html
- http://www.securityfocus.com/bid/17824Exploit
- https://exchange.xforce.ibmcloud.com/vulnerabilities/26283
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.