ecryptfs-utils up to 89 ecryptfs access control

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.
4.9$0-$5k0.00

A vulnerability classified as problematic was found in ecryptfs-utils up to 89. Affected by this vulnerability is an unknown functionality of the component ecryptfs. 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 integrity, and availability. The summary by CVE is:

The lock-counter implementation in utils/mount.ecryptfs_private.c in ecryptfs-utils before 90 allows local users to overwrite arbitrary files via unspecified vectors.

The weakness was presented 02/15/2014 by Marc Deslauriers (Website). It is possible to read the advisory at launchpad.net. This vulnerability is known as CVE-2011-1837 since 04/27/2011. The exploitation appears to be easy. Attacking locally is a requirement. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 56273 (CentOS 5 : ecryptfs-utils (CESA-2011:1241)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 119656 (CentOS Security Update for eCryptfs (CESA-2011:1241)).

Upgrading to version 80 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (69148) and Tenable (56273). See 62530, 66402, 66401 and 66400 for similar entries.

Productinfo

Name

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: 5.1
VulDB Meta Temp Score: 4.9

VulDB Base Score: 5.1
VulDB Temp Score: 4.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock

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

NVD Base Score: 🔍

Exploitinginfo

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

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Dayunlockunlockunlockunlock
Todayunlockunlockunlockunlock

Nessus ID: 56273
Nessus Name: CentOS 5 : ecryptfs-utils (CESA-2011:1241)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 70701
OpenVAS Name: Debian Security Advisory DSA 2382-1 (ecryptfs-utils)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: ecryptfs-utils 80

Timelineinfo

04/27/2011 🔍
08/10/2011 +105 days 🔍
08/10/2011 +0 days 🔍
08/18/2011 +8 days 🔍
02/15/2014 +912 days 🔍
02/15/2014 +0 days 🔍
03/24/2015 +402 days 🔍
02/01/2022 +2506 days 🔍

Sourcesinfo

Advisory: RHSA-2011:1241
Researcher: Marc Deslauriers
Status: Not defined
Confirmation: 🔍

CVE: CVE-2011-1837 (🔍)
OVAL: 🔍

X-Force: 69148
Vulnerability Center: 32761 - Linux Kernel 2.6-3.0.1 Local Arbitrary Files Overwrite Vulnerability, Low
SecurityFocus: 49108 - Linux Kernel eCryptfs Multiple Vulnerabilities

See also: 🔍

Entryinfo

Created: 03/24/2015 15:54
Updated: 02/01/2022 17:54
Changes: 03/24/2015 15:54 (60), 03/30/2017 09:28 (12), 02/01/2022 17:47 (3), 02/01/2022 17:54 (2)
Complete: 🔍
Cache ID: 52:1B2:103

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you know our Splunk app?

Download it now for free!