CVE-2011-2766

Public Exploit

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.

Category

7.5
CVSS
Severity: High
CVSS 2.0 •
EPSS 0.26%
Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory debian.org Vendor Advisory mandriva.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.openwall.com/lists/oss-security/2011/09/08/2 third party advisory mailing list
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=607479 issue tracking mailing list exploit third party advisory
http://www.openwall.com/lists/oss-security/2011/09/08/1 third party advisory mailing list
https://exchange.xforce.ibmcloud.com/vulnerabilities/69709 vdb entry third party advisory
https://bugzilla.redhat.com/show_bug.cgi?id=736604 issue tracking exploit third party advisory
https://hermes.opensuse.org/messages/13155253 vendor advisory broken link
https://rt.cpan.org/Public/Bug/Display.html?id=68380 exploit third party advisory patch
http://www.securityfocus.com/bid/49549 vdb entry third party advisory
https://hermes.opensuse.org/messages/13154637 vendor advisory broken link
http://www.debian.org/security/2011/dsa-2327 third party advisory vendor advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2012:001 third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2011-2766?
CVE-2011-2766 has been scored as a high severity vulnerability.
How to fix CVE-2011-2766?
To fix CVE-2011-2766, 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-2011-2766 being actively exploited in the wild?
It is possible that CVE-2011-2766 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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