PyPAM 0.5.0 PAMmodule.c resource management

CVSS Meta Temp Score
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CTI Interest Score
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6.9$0-$5k0.00

A vulnerability was found in PyPAM 0.5.0 and classified as critical. Affected by this issue is an unknown function of the file PAMmodule.c. The manipulation with an unknown input leads to a resource management vulnerability. Using CWE to declare the problem leads to CWE-399. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Double free vulnerability in the PyPAM_conv in PAMmodule.c in PyPam 0.5.0 and earlier allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a NULL byte in a password string.

The weakness was presented 06/15/2012 by Markus Vervier (Website). The advisory is available at debian.org. This vulnerability is handled as CVE-2012-1502 since 03/07/2012. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details as well as a public exploit are known.

A public exploit has been developed by Markus Vervier in Python and been published even before and not after the advisory. The exploit is available at securityfocus.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 97 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 74599 (openSUSE Security Update : python-pam (openSUSE-SU-2012:0487-1)), 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 (73857), Exploit-DB (18579), Tenable (74599), SecurityFocus (BID 52370†) and OSVDB (79892†).

Productinfo

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Version

CPE 2.3info

CPE 2.2info

CVSSv4info

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

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.9

VulDB Base Score: 7.3
VulDB Temp Score: 6.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Markus Vervier
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 74599
Nessus Name: openSUSE Security Update : python-pam (openSUSE-SU-2012:0487-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 71234
OpenVAS Name: Debian Security Advisory DSA 2430-1 (python-pam)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/07/2012 🔍
03/08/2012 +1 days 🔍
03/08/2012 +0 days 🔍
03/10/2012 +2 days 🔍
03/10/2012 +0 days 🔍
03/12/2012 +2 days 🔍
06/15/2012 +95 days 🔍
06/15/2012 +0 days 🔍
06/20/2012 +5 days 🔍
06/13/2014 +723 days 🔍
03/23/2015 +283 days 🔍
12/04/2021 +2448 days 🔍

Sourcesinfo

Advisory: usn-1395-1
Researcher: Markus Vervier
Status: Not defined

CVE: CVE-2012-1502 (🔍)
OVAL: 🔍

X-Force: 73857
SecurityFocus: 52370 - PyPAM Password Null Byte Handling Dereference Denial Of Service Vulnerability
Secunia: 48312 - Debian update for python-pam, Moderately Critical
OSVDB: 79892
Vulnerability Center: 35391 - PyPam \x3C\x3D0.5.0 Remote DoS or Code Execution Vulnerability via a NULL Byte in a Password String, High

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

Entryinfo

Created: 03/23/2015 04:50 PM
Updated: 12/04/2021 02:57 AM
Changes: 03/23/2015 04:50 PM (61), 04/13/2017 09:02 PM (21), 12/04/2021 02:43 AM (3), 12/04/2021 02:50 AM (1), 12/04/2021 02:57 AM (1)
Complete: 🔍
Cache ID: 98:A6E:40

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