Canonical Linux 9.10/10.04 cache link following

CVSS Meta Temp Score
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CTI Interest Score
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7.6$0-$5k0.00

Summaryinfo

A vulnerability was found in Canonical Linux 9.10/10.04 and classified as problematic. This vulnerability affects unknown code of the file cache. Such manipulation leads to link following. This vulnerability is uniquely identified as CVE-2010-0832. Moreover, an exploit is present. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Canonical Linux 9.10/10.04. Affected by this issue is an unknown code of the file cache. The manipulation with an unknown input leads to a link following vulnerability. Using CWE to declare the problem leads to CWE-59. The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource. Impacted is confidentiality, integrity, and availability. CVE summarizes:

pam_motd (aka the MOTD module) in libpam-modules before 1.1.0-2ubuntu1.1 in PAM on Ubuntu 9.10 and libpam-modules before 1.1.1-2ubuntu5 in PAM on Ubuntu 10.04 LTS allows local users to change the ownership of arbitrary files via a symlink attack on .cache in a user s home directory, related to "user file stamps" and the motd.legal-notice file.

The weakness was disclosed 07/07/2010 by Kristian Erik Hermansen (Website). The advisory is available at securityfocus.com. This vulnerability is handled as CVE-2010-0832. Local access is required to approach this attack. 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 Kristian Erik Hermansen in Shell File and been published 7 hours after the advisory. The exploit is available at securityfocus.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 50342 (Ubuntu 10.10 : pam vulnerability (USN-959-2)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks.

Upgrading to version 10.04 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (60194), Exploit-DB (14273), Tenable (50342), SecurityFocus (BID 41465†) and OSVDB (66116†). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.4
VulDB Meta Temp Score: 7.6

VulDB Base Score: 8.4
VulDB Temp Score: 7.6
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: Link following
CWE: CWE-59
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Kristian Erik Hermansen
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 50342
Nessus Name: Ubuntu 10.10 : pam vulnerability (USN-959-2)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 840458
OpenVAS Name: Ubuntu Update for pam vulnerability USN-959-1
OpenVAS File: 🔍
OpenVAS Family: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Upgrade: Linux 10.04

Timelineinfo

03/03/2010 🔍
07/07/2010 +126 days 🔍
07/07/2010 +0 days 🔍
07/07/2010 +0 days 🔍
07/07/2010 +0 days 🔍
07/08/2010 +0 days 🔍
07/08/2010 +0 days 🔍
07/08/2010 +0 days 🔍
07/11/2010 +2 days 🔍
07/12/2010 +1 days 🔍
10/26/2010 +106 days 🔍
03/19/2015 +1605 days 🔍
11/24/2024 +3538 days 🔍

Sourcesinfo

Advisory: securityfocus.com⛔
Researcher: Kristian Erik Hermansen
Status: Confirmed

CVE: CVE-2010-0832 (🔍)
GCVE (CVE): GCVE-0-2010-0832
GCVE (VulDB): GCVE-100-54002

OVAL: 🔍

X-Force: 60194
SecurityFocus: 41465 - PAM MOTD Module Local Privilege Escalation Vulnerability
Secunia: 40512
OSVDB: 66116 - Ubuntu pam MOTD Module User File Stamps Symlink Privilege Escalation
Vulnerability Center: 26346 - Pluggable Authentication Module In Ubuntu Local Privilege Escalation Vulnerability, High

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

Entryinfo

Created: 03/19/2015 14:37
Updated: 11/24/2024 06:02
Changes: 03/19/2015 14:37 (64), 02/28/2017 11:40 (18), 09/20/2021 12:33 (4), 09/20/2021 12:41 (1), 11/24/2024 06:02 (14)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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