Ubuntu pam-xdg-support Variables access control

CVSS Meta Temp Score
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CTI Interest Score
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8.1$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Ubuntu pam-xdg-support. Affected by this vulnerability is an unknown functionality of the component Variables Handler. Executing a manipulation can lead to access control. The identification of this vulnerability is CVE-2013-1052. There is no exploit available. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability classified as critical was found in Ubuntu pam-xdg-support (the affected version unknown). This vulnerability affects an unknown part of the component Variables Handler. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-264. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

pam-xdg-support, as used in Ubuntu 12.10, does not properly handle the PATH environment variable, which allows local users to gain privileges via unspecified vectors related to sudo.

The weakness was shared 03/18/2013 by Zbigniew Tenerowicz and Sebastian Krzyszkowiak as USN-1766-1 as confirmed advisory (Website). The advisory is available at ubuntu.com. The vendor cooperated in the coordination of the public release. This vulnerability was named CVE-2013-1052 since 01/11/2013. The exploitation appears to be easy. Local access is required to approach this attack. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

The vulnerability scanner Nessus provides a plugin with the ID 65608 (Ubuntu 12.10 : pam-xdg-support vulnerability (USN-1766-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at ubuntu.com. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (82918), Tenable (65608), SecurityFocus (BID 58550†), OSVDB (91568†) and Vulnerability Center (SBV-38890†). The entry VDB-2169 is related to this item. Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.3
VulDB Meta Temp Score: 8.1

VulDB Base Score: 9.3
VulDB Temp Score: 8.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 65608
Nessus Name: Ubuntu 12.10 : pam-xdg-support vulnerability (USN-1766-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 841366
OpenVAS Name: Ubuntu Update for pam-xdg-support USN-1766-1
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Patch: ubuntu.com

Timelineinfo

01/11/2013 🔍
03/18/2013 +66 days 🔍
03/18/2013 +0 days 🔍
03/18/2013 +0 days 🔍
03/18/2013 +0 days 🔍
03/19/2013 +1 days 🔍
03/21/2013 +2 days 🔍
03/24/2013 +3 days 🔍
03/25/2013 +1 days 🔍
05/06/2021 +2964 days 🔍

Sourcesinfo

Vendor: ubuntu.com

Advisory: USN-1766-1
Researcher: Zbigniew Tenerowicz, Sebastian Krzyszkowiak
Status: Confirmed
Coordinated: 🔍

CVE: CVE-2013-1052 (🔍)
GCVE (CVE): GCVE-0-2013-1052
GCVE (VulDB): GCVE-100-8074

OVAL: 🔍

X-Force: 82918 - Ubuntu pam-xdg-support module privilege escalation, High Risk
SecurityFocus: 58550 - Ubuntu 'pam-xdg-support' Module CVE-2013-1052 Local Privilege Escalation Vulnerability
OSVDB: 91568
Vulnerability Center: 38890 - Ubuntu 12.10 \x27pam-xdg-support\x27 Improper \x27PATH\x27 Handling Allows Local Privilege Escalation, High

See also: 🔍

Entryinfo

Created: 03/25/2013 15:42
Updated: 05/06/2021 14:54
Changes: 03/25/2013 15:42 (78), 04/26/2017 17:43 (2), 05/06/2021 14:54 (3)
Complete: 🔍
Committer:
Cache ID: 216:37E:103

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