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CVE-2006-2450

7.5 · HIGH

auth.c in LibVNCServer 0.7.1 allows remote attackers to bypass authentication via a request in which the client specifies an insecure security type such as "Type 1 - None", which is accepted even i…

Published Jul 18, 2006libvncserverEPSS 4.36%

Overview

CVE-2006-2450 is a high-severity vulnerability affecting libvncserver libvncserver. It was published on July 18, 2006 and has a CVSS 2.0 base score of 7.5 (HIGH).

This vulnerability has a CVSS 2.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

auth.c in LibVNCServer 0.7.1 allows remote attackers to bypass authentication via a request in which the client specifies an insecure security type such as "Type 1 - None", which is accepted even if it is not offered by the server, a different issue than CVE-2006-2369.

Remediation

Check the references section for vendor advisories and patches from libvncserver. Update libvncserver to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus

References

Refbugs.debian.org/cgi-bin/bugreport.cgi?bug=376824Reflibvncserver.cvs.sourceforge.net/libvncserver/libvncserver/libvncserver/auth.c?r1=1.11&r2=1.14&diff_format=uRefseclists.org/fulldisclosure/2022/May/29Refsecunia.com/advisories/20940Refsecunia.com/advisories/21179Refsecunia.com/advisories/21349Refsecunia.com/advisories/21393Refsecunia.com/advisories/21405Refsecunia.com/advisories/24525Refsecurity.gentoo.org/glsa/glsa-200608-05.xml

How CyberStrike helps

Frequently asked questions

What is CVE-2006-2450?

CVE-2006-2450 is a high-severity vulnerability affecting libvncserver libvncserver. It was published on July 18, 2006 and has a CVSS 2.0 base score of 7.5 (HIGH).

How severe is CVE-2006-2450?

This vulnerability has a CVSS 2.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2006-2450?

Check the references section for vendor advisories and patches from libvncserver. Update libvncserver to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2006-2450?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2006-2450 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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