LXCFS up to 0.11 cgroup access control

EntryHistoryDiffjsonxmlCTI

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.7	$0-$5k	0.00

A vulnerability was found in LXCFS up to 0.11 and classified as problematic. Affected by this issue is an unknown functionality of the component cgroup Handler. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is confidentiality, integrity, and availability. CVE summarizes:

LXCFS before 0.12 does not properly enforce directory escapes, which might allow local users to gain privileges by (1) querying or (2) updating a cgroup.

The weakness was published 12/07/2015 (Website). The advisory is available at github.com. This vulnerability is handled as CVE-2015-1342 since 01/22/2015. Local access is required to approach this attack. No form of authentication is required for 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 86911 (Ubuntu 15.04 / 15.10 : lxcfs vulnerabilities (USN-2813-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 196314 (Ubuntu Security Notification for Lxcfs Vulnerabilities (USN-2813-1)).

Upgrading to version 0.12 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 vulnerability database at Tenable (86911). Similar entry is available at 79431.

Productinfo

Name

LXCFS

Version

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

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

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.7

VulDB Base Score: 5.9
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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Exploitinginfo

Class: Access control
CWE: CWE-264
ATT&CK: T1068

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Nessus ID: 86911
Nessus Name: Ubuntu 15.04 / 15.10 : lxcfs vulnerabilities (USN-2813-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 841810
OpenVAS Name: Ubuntu Update for lxcfs USN-2813-1
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: LXCFS 0.12
Patch: github.com

Timelineinfo

01/22/2015 🔍
11/17/2015 +299 days 🔍
11/18/2015 +1 days 🔍
11/18/2015 +0 days 🔍
11/29/2015 +11 days 🔍
12/07/2015 +8 days 🔍
12/07/2015 +0 days 🔍
12/08/2015 +1 days 🔍
06/28/2022 +2394 days 🔍

Sourcesinfo

Advisory: USN-2813-1
Status: Not defined
Confirmation: 🔍

CVE: CVE-2015-1342 (🔍)
Vulnerability Center: 54662 - LXCFS Local Priviliege Escalation due to Incorrectly Enforced Directory Escapes, Medium

See also: 🔍

Entryinfo

Created: 12/08/2015 10:29
Updated: 06/28/2022 14:58
Changes: 12/08/2015 10:29 (56), 05/08/2018 09:14 (13), 06/28/2022 14:58 (4)
Complete: 🔍