CVE-2011-2766
published 2011-09-23CVE-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…
PriorityP348high7.5CVSS 2.0
AVNACLAuNCPIPAP
EPSS
7.24%
93.7th percentile
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.
Affected
5 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| debian | libfcgi-perl | < libfcgi-perl 0.73-2 (bookworm) | libfcgi-perl 0.73-2 (bookworm) |
| fast_cgi_project | fast_cgi | 0.70 – 0.73 | — |
CVSS provenance
nvdv2.07.5HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
osv7.5HIGH
vendor_debian7.5HIGH
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Debian
CVE-2011-2766: libfcgi-perl - The FCGI (aka Fast CGI) module 0.70 through 0.73 for Perl, as used by CGI::Fast,...
vendor_debian·2011·CVSS 7.5
CVE-2011-2766 [HIGH] CVE-2011-2766: libfcgi-perl - The FCGI (aka Fast CGI) module 0.70 through 0.73 for Perl, as used by CGI::Fast,...
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.
Scope: local
bookworm: resolved (fixed in 0.73-2)
bullseye: resolved (fixed in 0.73-2)
forky: resolved (fixed in 0.73-2)
sid: resolved (fixed in 0.73-2)
trixie: resolved (fixed in 0.73-2)
GHSA
GHSA-57h3-ccpr-f6f8: The FCGI (aka Fast CGI) module 0
ghsa_unreviewed·2022-05-13
CVE-2011-2766 [HIGH] CWE-287 GHSA-57h3-ccpr-f6f8: The FCGI (aka Fast CGI) module 0
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.
OSV
CVE-2011-2766: The FCGI (aka Fast CGI) module 0
osv·2011-09-23·CVSS 7.5
CVE-2011-2766 [HIGH] CVE-2011-2766: The FCGI (aka Fast CGI) module 0
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.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2011-2766 perl-FCGI, fcgi: Certain environment variables shared between first and subsequent HTTP requests [epel-6]
bugzilla·2011-09-08·CVSS 7.5
CVE-2011-2766 [HIGH] CVE-2011-2766 perl-FCGI, fcgi: Certain environment variables shared between first and subsequent HTTP requests [epel-6]
CVE-2011-2766 perl-FCGI, fcgi: Certain environment variables shared between first and subsequent HTTP requests [epel-6]
epel-6 tracking bug for perl-FCGI: see blocks bug list for full details of the security issue(s).
This bug is never intended to be made public, please put any public notes
in the 'blocks' bugs.
[bug automatically created by: add-tracking-bugs]
Discussion:
perl-FCGI-0.71-4.el6 has been submitted as an update for Fedora EPEL 6.
https://admin.fedoraproject.org/updates/perl-FCGI-0.71-4.el6
---
Package perl-FCGI-0.71-4.el6:
* should fix your issue,
* was pushed to the Fedora EPEL 6 testing repository,
* should be available at your local mirror within two days.
Update it with:
# su -c 'yum update --enablerepo=epel-testing perl-FCGI-0.71-4.el6'
as soon as you are able to
Bugzilla
CVE-2011-2766 perl-FCGI, fcgi: Certain environment variables shared between first and subsequent HTTP requests
bugzilla·2011-09-08·CVSS 7.5
CVE-2011-2766 [HIGH] CVE-2011-2766 perl-FCGI, fcgi: Certain environment variables shared between first and subsequent HTTP requests
CVE-2011-2766 perl-FCGI, fcgi: Certain environment variables shared between first and subsequent HTTP requests
It was found that the perl Fast CGI module did not properly clean up certain environment variables, related to a particular HTTP request, between subsequent incoming requests. Any environment variable set in the first pass through the code by processing the first request, that wasn't set in some subsequent request, has been added to the hash containing environment variables for that subsequent request. A remote attacker could use this flaw to bypass the authentication process and obtain access to resources, which would be otherwise protected by authentication.
References:
[1] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=607479
Discussion:
This issue affects the versions of
Bugzilla
CVE-2011-2766 perl-FCGI, fcgi: Certain environment variables shared between first and subsequent HTTP requests [fedora-all]
bugzilla·2011-09-08·CVSS 7.5
CVE-2011-2766 [HIGH] CVE-2011-2766 perl-FCGI, fcgi: Certain environment variables shared between first and subsequent HTTP requests [fedora-all]
CVE-2011-2766 perl-FCGI, fcgi: Certain environment variables shared between first and subsequent HTTP requests [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected Fedora
versions.
For comments that are specific to the vulnerability please use bugs filed
against "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When creating a Bodhi update request, please include the bug IDs of the
respective parent bugs filed against the "Security Response" product.
Please mention CVE ids in the RPM changelog when available.
Bodhi update submission link:
https://admin.fedoraproject.org/updates/new/?type_=security&bugs
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=607479http://www.debian.org/security/2011/dsa-2327http://www.mandriva.com/security/advisories?name=MDVSA-2012:001http://www.openwall.com/lists/oss-security/2011/09/08/1http://www.openwall.com/lists/oss-security/2011/09/08/2http://www.securityfocus.com/bid/49549https://bugzilla.redhat.com/show_bug.cgi?id=736604https://exchange.xforce.ibmcloud.com/vulnerabilities/69709https://hermes.opensuse.org/messages/13154637https://hermes.opensuse.org/messages/13155253https://rt.cpan.org/Public/Bug/Display.html?id=68380http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=607479http://www.debian.org/security/2011/dsa-2327http://www.mandriva.com/security/advisories?name=MDVSA-2012:001http://www.openwall.com/lists/oss-security/2011/09/08/1http://www.openwall.com/lists/oss-security/2011/09/08/2http://www.securityfocus.com/bid/49549https://bugzilla.redhat.com/show_bug.cgi?id=736604https://exchange.xforce.ibmcloud.com/vulnerabilities/69709https://hermes.opensuse.org/messages/13154637https://hermes.opensuse.org/messages/13155253https://rt.cpan.org/Public/Bug/Display.html?id=68380
2011-09-23
Published