Ultr@VNC MS-Logon weak encryption

ultr@vnc-mslogon-weak-encryption (26283) The risk level is classified as LowLow Risk


Ultr@VNC (UltraVNC) uses a weak encryption algorithm when MS-Logon I and MS-Logon II authentication is used. A remote attacker could use a network sniffing tool to recover encrypted user passwords that can be easily decrypted and used to gain unauthorized access to the system.


Bypass Security


Upgrade to the latest version of Ultr@VNC (1.0.2 or later), available from the Ultr@VNC Web site. See References.


Platforms Affected:

  • Ultr@VNC Ultr@VNC 1.0.1 and prior


May 03, 2006

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