Linux-PAM up to 1.1.2 pam_xauth pam_xauth.c pam_sm_close_session information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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6.2$0-$5k0.00

A vulnerability was found in Linux-PAM. It has been declared as critical. Affected by this vulnerability is the function pam_sm_close_session of the file pam_xauth.c of the component pam_xauth. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect availability. The summary by CVE is:

The pam_sm_close_session function in pam_xauth.c in the pam_xauth module in Linux-PAM (aka pam) 1.1.2 and earlier does not properly handle a failure to determine a certain target uid, which might allow local users to delete unintended files by executing a program that relies on the pam_xauth PAM check.

The weakness was released 01/24/2011 (oss-sec). The advisory is shared at openwall.com. This vulnerability is known as CVE-2010-4706. The exploitation appears to be easy. An attack has to be approached locally. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 59704 (GLSA-201206-31 : Linux-PAM: Multiple vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo 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 (65035) and Tenable (59704). Entries connected to this vulnerability are available at 56223, 56222, 56214 and 56213.

Productinfo

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Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.2
VulDB Meta Temp Score: 6.2

VulDB Base Score: 6.2
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 59704
Nessus Name: GLSA-201206-31 : Linux-PAM: Multiple vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 840672
OpenVAS Name: Ubuntu Update for pam USN-1140-1
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Patch: git.altlinux.org

Timelineinfo

01/24/2011 🔍
01/24/2011 +0 days 🔍
01/24/2011 +0 days 🔍
01/24/2011 +0 days 🔍
06/20/2011 +147 days 🔍
03/19/2015 +1368 days 🔍
10/13/2021 +2400 days 🔍

Sourcesinfo

Advisory: openwall.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2010-4706 (🔍)
OVAL: 🔍

X-Force: 65035
Vulnerability Center: 31908 - Linux-PAM 1.1.2 and earlier Allows Local Users to Delete Unintended Files, Low
SecurityFocus: 46045
Secunia: 49711

See also: 🔍

Entryinfo

Created: 03/19/2015 23:27
Updated: 10/13/2021 07:48
Changes: 03/19/2015 23:27 (57), 03/24/2017 12:04 (7), 10/13/2021 07:42 (6), 10/13/2021 07:48 (1)
Complete: 🔍

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