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Vulnerability Details : CVE-2002-1336

TightVNC before 1.2.6 generates the same challenge string for multiple connections, which allows remote attackers to bypass VNC authentication by sniffing the challenge and response of other users.
Publish Date : 2002-12-11 Last Update Date : 2016-10-17
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- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access User
Vulnerability Type(s) Bypass a restriction or similar
CWE ID CWE id is not defined for this vulnerability

- Additional Vendor Supplied Data

Vendor Impact CVSS Score CVSS Vector Report Date Publish Date
Redhat moderate 2002-07-26
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- Products Affected By CVE-2002-1336

# Product Type Vendor Product Version Update Edition Language
1 Application Tightvnc Tightvnc 1.2.0 Version Details Vulnerabilities
2 Application Tightvnc Tightvnc 1.2.1 Version Details Vulnerabilities
3 Application Tightvnc Tightvnc 1.2.3 Version Details Vulnerabilities
4 Application Tightvnc Tightvnc 1.2.4 Version Details Vulnerabilities
5 Application Tightvnc Tightvnc 1.2.5 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Tightvnc Tightvnc 5

- References For CVE-2002-1336 CONFIRM
XF vnc-weak-authentication(5992)
BID 5296 TightVNC Repeated Challenge Replay Attack Vulnerability Release Date:2009-07-11
REDHAT RHSA-2002:287
REDHAT RHSA-2003:041
BUGTRAQ 20020726 RE: VNC authentication weakness
BUGTRAQ 20020724 VNC authentication weakness

- Metasploit Modules Related To CVE-2002-1336

There are not any metasploit modules related to this CVE entry (Please visit for more information)

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