Auth bypass in Fast Cgi Project
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.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v2 metric
CVSS v2 base score 7.5 (High). Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.072 (94.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 94.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.072 · newest: 0.072 · change: 0.000
Affected products
- Fast Cgi Project
- Debian Linux — versions 5.0, 6.0, 7.0
Weakness classification (CWE)
References
- www.openwall.com/lists/oss-security/2011/09/08/2 (mailing-list, Mailing List, Third Party Advisory)
- bugs.debian.org/cgi-bin/bugreport.cgi (Exploit, Mailing List, Third Party Advisory, Issue Tracking)
- www.openwall.com/lists/oss-security/2011/09/08/1 (mailing-list, Mailing List, Third Party Advisory)
- exchange.xforce.ibmcloud.com/vulnerabilities/69709 (VDB Entry, Third Party Advisory, vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (Exploit, Third Party Advisory, Issue Tracking)
- hermes.opensuse.org/messages/13155253 (vendor-advisory, Broken Link)
- rt.cpan.org/Public/Bug/Display.html (Exploit, Patch, Third Party Advisory)
- www.securityfocus.com/bid/49549 (VDB Entry, Third Party Advisory, vdb-entry)
- hermes.opensuse.org/messages/13154637 (vendor-advisory, Broken Link)
- www.debian.org/security/2011/dsa-2327 (vendor-advisory, Third Party Advisory)