Vulnerability Description
The FCGI (aka Fast CGI) module 0.70 through 0.73 for Perl, as used by CGI::Fast, uses environment variable values from one request during processing of a later request, which allows remote attackers to bypass authentication via crafted HTTP headers.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Fast Cgi Project | Fast Cgi | >= 0.70, <= 0.73 |
| Debian | Debian Linux | 5.0 |
Related Weaknesses (CWE)
References
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=607479ExploitIssue TrackingMailing List
- http://www.debian.org/security/2011/dsa-2327Third Party Advisory
- http://www.mandriva.com/security/advisories?name=MDVSA-2012:001Third Party Advisory
- http://www.openwall.com/lists/oss-security/2011/09/08/1Mailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2011/09/08/2Mailing ListThird Party Advisory
- http://www.securityfocus.com/bid/49549Third Party AdvisoryVDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=736604ExploitIssue TrackingThird Party Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/69709Third Party AdvisoryVDB Entry
- https://hermes.opensuse.org/messages/13154637Broken Link
- https://hermes.opensuse.org/messages/13155253Broken Link
- https://rt.cpan.org/Public/Bug/Display.html?id=68380ExploitPatchThird Party Advisory
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=607479ExploitIssue TrackingMailing List
- http://www.debian.org/security/2011/dsa-2327Third Party Advisory
- http://www.mandriva.com/security/advisories?name=MDVSA-2012:001Third Party Advisory
- http://www.openwall.com/lists/oss-security/2011/09/08/1Mailing ListThird Party Advisory
FAQ
What is CVE-2011-2766?
CVE-2011-2766 is a vulnerability with a CVSS score of 7.5 (HIGH). The FCGI (aka Fast CGI) module 0.70 through 0.73 for Perl, as used by CGI::Fast, uses environment variable values from one request during processing of a later request, which allows remote attackers t...
How severe is CVE-2011-2766?
CVE-2011-2766 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-2011-2766?
Check the references section above for vendor advisories and patch information. Affected products include: Fast Cgi Project Fast Cgi, Debian Debian Linux.