Perl 0.70/0.71/0.72 CPAN Module::Signature Module input validation

CVSS Meta Temp Score
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CTI Interest Score
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4.9$0-$5k0.00

A vulnerability was found in Perl 0.70/0.71/0.72 (Programming Language Software). It has been classified as critical. Affected is some unknown functionality of the component CPAN Module::Signature Module. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on confidentiality, and integrity. CVE summarizes:

The cpansign verify functionality in the Module::Signature module before 0.72 for Perl allows attackers to bypass the signature check and execute arbitrary code via a SIGNATURE file with a "special unknown cipher" that references an untrusted module in Digest/.

The weakness was published 06/05/2013 by Florian Weimer with Red Hat Security Response Team as not defined mailinglist post (oss-sec). The advisory is shared for download at seclists.org. The public release has been coordinated with the vendor. This vulnerability is traded as CVE-2013-2145 since 02/19/2013. The attack can only be initiated within the local network. The exploitation doesn't require any form of authentication. Technical details are unknown but a public exploit is available.

After immediately, there has been an exploit disclosed. The exploit is shared for download at seclists.org. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 67282 (Fedora 18 : perl-Module-Signature-0.73-1.fc18 (2013-10430)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks.

Upgrading to version 0.72 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (84896) and Tenable (67282).

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 4.9

VulDB Base Score: 5.4
VulDB Temp Score: 4.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Partially

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

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EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 67282
Nessus Name: Fedora 18 : perl-Module-Signature-0.73-1.fc18 (2013-10430)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 865945
OpenVAS Name: Fedora Update for perl-Module-Signature FEDORA-2013-10415
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Exploit Delay Time: 🔍

Upgrade: Perl 0.72
Patch: github.com

Timelineinfo

02/19/2013 🔍
06/05/2013 +106 days 🔍
06/05/2013 +0 days 🔍
06/05/2013 +0 days 🔍
06/05/2013 +0 days 🔍
06/05/2013 +0 days 🔍
06/11/2013 +6 days 🔍
07/01/2013 +20 days 🔍
07/12/2013 +11 days 🔍
08/19/2013 +38 days 🔍
05/14/2021 +2825 days 🔍

Sourcesinfo

Advisory: seclists.org
Researcher: Florian Weimer
Organization: Red Hat Security Response Team
Status: Not defined
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2013-2145 (🔍)
OVAL: 🔍

X-Force: 84896
Vulnerability Center: 40255 - Module::Signature <0.72 Local Arbitrary Code Execution via a Special Unknown Cipher, Medium
SecurityFocus: 60352 - Module::Signature CVE-2013-2145 Local Arbitrary Code Execution Vulnerability
OSVDB: 94060

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 06/11/2013 16:00
Updated: 05/14/2021 14:18
Changes: 06/11/2013 16:00 (81), 05/04/2017 10:33 (3), 05/14/2021 14:18 (3)
Complete: 🔍
Committer:

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