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Vulnerability Details : CVE-2006-1652

Multiple buffer overflows in (a) UltraVNC (aka Ultr@VNC) 1.0.1 and earlier and (b) tabbed_viewer 1.29 (1) allow user-assisted remote attackers to execute arbitrary code via a malicious server that sends a long string to a client that connects on TCP port 5900, which triggers an overflow in Log::ReallyPrint; and (2) allow remote attackers to cause a denial of service (server crash) via a long HTTP GET request to TCP port 5800, which triggers an overflow in VNCLog::ReallyPrint.
Publish Date : 2006-04-06 Last Update Date : 2008-09-05
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- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact Complete (There is total information disclosure, resulting in all system files being revealed.)
Integrity Impact Complete (There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the entire system being compromised.)
Availability Impact Complete (There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Single system (The vulnerability requires an attacker to be logged into the system (such as at a command line or via a desktop session or web interface).)
Gained Access Admin
Vulnerability Type(s) Denial Of ServiceExecute CodeOverflow
CWE ID CWE id is not defined for this vulnerability

- Products Affected By CVE-2006-1652

# Product Type Vendor Product Version Update Edition Language
1 Application Ultravnc Tabbed Viewer 1.29 Version Details Vulnerabilities
2 Application Ultravnc Vnc Viewer 1.0.1 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Ultravnc Tabbed Viewer 1
Ultravnc Vnc Viewer 1

- References For CVE-2006-1652
XF untr@vnc-error-bo(25648)
MILW0RM 1642
XF ultr@vnc-vnclogreallyprint-bo(25650)
MILW0RM 1643
VUPEN ADV-2006-1240
BUGTRAQ 20060404 Buffer-overflow in Ultr@VNC 1.0.1 viewer and server
BUGTRAQ 20060405 Re: Buffer-overflow in Ultr@VNC 1.0.1 viewer and server
BID 17378 UltraVNC Multiple Remote Error Logging Buffer Overflow Vulnerabilities Release Date:2006-06-21
BUGTRAQ 20060411 Re: Buffer-overflow in Ultr@VNC 1.0.1 viewer POC
FULLDISC 20060404 Buffer-overflow in Ultr@VNC 1.0.1 viewer and server

- Metasploit Modules Related To CVE-2006-1652

UltraVNC 1.0.1 Client Buffer Overflow
This module exploits a buffer overflow in UltraVNC Win32 Viewer 1.0.1 Release.
Module type : exploit Rank : normal Platforms : Windows

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