CVE-2002-1336

Description

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.

7.5

CVSS

Severity: High

CVSS 2.0 •

EPSS 1.30% Top 25%

Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory mandrakesoft.com Vendor Advisory com.br

Affected: n/a n/a

References

Link	Tags
https://exchange.xforce.ibmcloud.com/vulnerabilities/5992	vdb entry
http://www.redhat.com/support/errata/RHSA-2002-287.html	vendor advisory
http://marc.info/?l=bugtraq&m=102753170201524&w=2	mailing list
http://www.redhat.com/support/errata/RHSA-2003-041.html	vendor advisory
http://www.mandrakesoft.com/security/advisories?name=MDKSA-2003:022	vendor advisory
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000640	vendor advisory
http://www.tightvnc.com/WhatsNew.txt
http://marc.info/?l=bugtraq&m=102769183913594&w=2	mailing list
http://www.securityfocus.com/bid/5296	vdb entry

Frequently Asked Questions

What is the severity of CVE-2002-1336?: CVE-2002-1336 has been scored as a high severity vulnerability.
How to fix CVE-2002-1336?: To fix CVE-2002-1336, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2002-1336 being actively exploited in the wild?: It is possible that CVE-2002-1336 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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