Robert Ancell lightdm up to 1.1.6 access control

CVSS Meta Temp Score
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CTI Interest Score
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3.6$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Robert Ancell lightdm up to 1.1.6. This issue affects some unknown processing. Performing a manipulation results in access control. This vulnerability is reported as CVE-2012-0943. Moreover, an exploit is present. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in Robert Ancell lightdm up to 1.1.6. This affects an unknown functionality. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-264. This is going to have an impact on availability. The summary by CVE is:

debian/guest-account in Light Display Manager (lightdm) 1.0.x before 1.0.6 and 1.1.x before 1.1.7, as used in Ubuntu Linux 11.10, allows local users to delete arbitrary files via a space in the name of a file in /tmp. NOTE: this identifier was SPLIT per ADT1/ADT2 due to different codebases and affected versions. CVE-2012-6648 has been assigned for the gdm-guest-session issue.

The weakness was disclosed 05/22/2014 by Ryan Lortie (Website). The advisory is shared at ubuntu.com. This vulnerability is uniquely identified as CVE-2012-0943 since 02/01/2012. The exploitability is told to be easy. An attack has to be approached locally. No form of authentication is needed for exploitation. Technical details are unknown but a public exploit is available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

The exploit is shared for download at securityfocus.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 58340 (Ubuntu 10.04 LTS / 10.10 / 11.04 : gdm-guest-session vulnerability (USN-1399-1)), 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 1.1.1 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (73998), Exploit-DB (36966), Tenable (58340), SecurityFocus (BID 52452†) and Vulnerability Center (SBV-39058†). The entry VDB-69778 is pretty similar. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.0
VulDB Meta Temp Score: 3.6

VulDB Base Score: 4.0
VulDB Temp Score: 3.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: No

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 58340
Nessus Name: Ubuntu 10.04 LTS / 10.10 / 11.04 : gdm-guest-session vulnerability (USN-1399-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 840947
OpenVAS Name: Ubuntu Update for gdm-guest-session USN-1399-1
OpenVAS File: 🔍
OpenVAS Family: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: lightdm 1.1.1

Timelineinfo

02/01/2012 🔍
03/13/2012 +41 days 🔍
03/13/2012 +0 days 🔍
03/14/2012 +1 days 🔍
04/09/2013 +391 days 🔍
05/22/2014 +408 days 🔍
05/22/2014 +0 days 🔍
03/25/2015 +307 days 🔍
10/17/2024 +3494 days 🔍

Sourcesinfo

Advisory: USN-1399-1
Researcher: Ryan Lortie
Status: Not defined
Confirmation: 🔍

CVE: CVE-2012-0943 (🔍)
GCVE (CVE): GCVE-0-2012-0943
GCVE (VulDB): GCVE-100-69777

OVAL: 🔍

X-Force: 73998
SecurityFocus: 52452 - LightDM Arbitrary File Deletion Vulnerability
Vulnerability Center: 39058 - Light Display Manager 1.0.6 Local Arbitrary File Deletion, Low

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

Entryinfo

Created: 03/25/2015 16:45
Updated: 10/17/2024 05:11
Changes: 03/25/2015 16:45 (67), 04/26/2017 23:53 (8), 03/21/2022 17:17 (3), 03/21/2022 17:24 (2), 10/17/2024 05:11 (15)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

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