Sven Verdoolaege FCGI up to 0.73 CGI::Fast improper authentication
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
7.3 | $0-$5k | 0.00 |
A vulnerability was found in Sven Verdoolaege FCGI up to 0.73 and classified as critical. This issue affects the function CGI::Fast
. The manipulation with an unknown input leads to a improper authentication vulnerability. Using CWE to declare the problem leads to CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. Impacted is confidentiality, integrity, and availability. The summary by CVE is:
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.
The weakness was published 09/23/2011 by Russ Allbery (Website). It is possible to read the advisory at rt.cpan.org. The identification of this vulnerability is CVE-2011-2766. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit.
The vulnerability scanner Nessus provides a plugin with the ID 74516 (openSUSE Security Update : FastCGI (openSUSE-2011-102)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
The vulnerability is also documented in the databases at X-Force (69709) and Tenable (74516).
Product
Vendor
Name
Version
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.3VulDB Meta Temp Score: 7.3
VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Improper authenticationCWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Today | unlock | unlock | unlock | unlock |
Nessus ID: 74516
Nessus Name: openSUSE Security Update : FastCGI (openSUSE-2011-102)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍
OpenVAS ID: 70542
OpenVAS Name: Debian Security Advisory DSA 2327-1 (libfcgi-perl)
OpenVAS File: 🔍
OpenVAS Family: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔍
ISS Proventia IPS: 🔍
Timeline
07/19/2011 🔍09/09/2011 🔍
09/23/2011 🔍
09/23/2011 🔍
09/23/2011 🔍
10/11/2011 🔍
06/13/2014 🔍
03/23/2015 🔍
11/20/2021 🔍
Sources
Advisory: dsa-2327Researcher: Russ Allbery
Status: Not defined
Confirmation: 🔍
CVE: CVE-2011-2766 (🔍)
OVAL: 🔍
X-Force: 69709
Vulnerability Center: 33509 - Perl FCGI Module 0.70-0.73 Remote Authentication Bypass via a Crafted HTTP Header, High
SecurityFocus: 49549 - Perl Fast CGI Module CGI Variables Authentication Security Bypass Vulnerability
Entry
Created: 03/23/2015 16:50Updated: 11/20/2021 17:11
Changes: 03/23/2015 16:50 (59), 04/03/2017 17:54 (10), 11/20/2021 16:56 (5), 11/20/2021 17:03 (1), 11/20/2021 17:11 (1)
Complete: 🔍
Cache ID: 18:89F:103
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