Vulnerability 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.
CVSS Score
7.5
HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Tightvnc | Tightvnc | 1.2.0 |
References
- http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000640
- http://marc.info/?l=bugtraq&m=102753170201524&w=2
- http://marc.info/?l=bugtraq&m=102769183913594&w=2
- http://www.mandrakesoft.com/security/advisories?name=MDKSA-2003:022
- http://www.redhat.com/support/errata/RHSA-2002-287.html
- http://www.redhat.com/support/errata/RHSA-2003-041.html
- http://www.securityfocus.com/bid/5296
- http://www.tightvnc.com/WhatsNew.txt
- https://exchange.xforce.ibmcloud.com/vulnerabilities/5992
- http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000640
- http://marc.info/?l=bugtraq&m=102753170201524&w=2
- http://marc.info/?l=bugtraq&m=102769183913594&w=2
- http://www.mandrakesoft.com/security/advisories?name=MDKSA-2003:022
- http://www.redhat.com/support/errata/RHSA-2002-287.html
- http://www.redhat.com/support/errata/RHSA-2003-041.html
FAQ
What is CVE-2002-1336?
CVE-2002-1336 is a vulnerability with a CVSS score of 7.5 (HIGH). 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.
How severe is CVE-2002-1336?
CVE-2002-1336 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2002-1336?
Check the references section above for vendor advisories and patch information. Affected products include: Tightvnc Tightvnc.