CVE-2011-2766
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (7.24%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a 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.
- CVSS 2.0
- 7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
- EPSS
- 7.24% probability · 94th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-287
- Affected
- fast cgi project/fast cgi · debian/debian linux
- Source
- cve@mitre.org
References
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=607479Exploit, Issue Tracking, Mailing List, Third Party Advisory
- 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 List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2011/09/08/2Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/49549Third Party Advisory, VDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=736604Exploit, Issue Tracking, Third Party Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/69709Third Party Advisory, VDB Entry
- https://hermes.opensuse.org/messages/13154637Broken Link
- https://hermes.opensuse.org/messages/13155253Broken Link
- https://rt.cpan.org/Public/Bug/Display.html?id=68380Exploit, Patch, Third Party Advisory
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=607479Exploit, Issue Tracking, Mailing List, Third Party Advisory
- 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 List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2011/09/08/2Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/49549Third Party Advisory, VDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=736604Exploit, Issue Tracking, Third Party Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/69709Third Party Advisory, VDB Entry
- https://hermes.opensuse.org/messages/13154637Broken Link
- https://hermes.opensuse.org/messages/13155253Broken Link
- https://rt.cpan.org/Public/Bug/Display.html?id=68380Exploit, Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.