fuse up to 2.8.5 Access Restriction 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.
5.1$0-$5k0.00

Summaryinfo

A vulnerability was found in fuse. It has been classified as problematic. The affected element is an unknown function of the component Access Restriction. The manipulation leads to access control. This vulnerability is uniquely identified as CVE-2011-0543. No exploit exists.

Detailsinfo

A vulnerability was found in fuse. It has been rated as problematic. This issue affects an unknown code block of the component Access Restriction. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is integrity, and availability. The summary by CVE is:

Certain legacy functionality in fusermount in fuse 2.8.5 and earlier, when util-linux does not support the --no-canonicalize option, allows local users to bypass intended access restrictions and unmount arbitrary directories via a symlink attack.

The weakness was disclosed 09/02/2011 by Marc Deslauriers (oss-sec). It is possible to read the advisory at openwall.com. The identification of this vulnerability is CVE-2011-0543 since 01/20/2011. Attacking locally is a requirement. No form of authentication is needed for a successful exploitation. 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 68309 (Oracle Linux 6 : fuse (ELSA-2011-1083)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 155719 (Oracle Enterprise Linux Update for FUSE (ELSA-2011-1083)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (65150), Tenable (68309), SecurityFocus (BID 46103†) and Vulnerability Center (SBV-30363†). The entries VDB-56204, VDB-58426 and VDB-58425 are pretty similar. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.1
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.1
VulDB Temp Score: 5.1
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: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 68309
Nessus Name: Oracle Linux 6 : fuse (ELSA-2011-1083)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 870720
OpenVAS Name: RedHat Update for fuse RHSA-2011:1083-01
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Patch: cbd3a2a84068aae6e3fe32939d88470d712dbf47

Timelineinfo

01/20/2011 🔍
01/31/2011 +11 days 🔍
02/02/2011 +2 days 🔍
03/15/2011 +41 days 🔍
09/02/2011 +171 days 🔍
09/02/2011 +0 days 🔍
03/23/2015 +1298 days 🔍
11/18/2021 +2432 days 🔍

Sourcesinfo

Advisory: RHSA-2011:1083
Researcher: Marc Deslauriers
Status: Not defined
Confirmation: 🔍

CVE: CVE-2011-0543 (🔍)
GCVE (CVE): GCVE-0-2011-0543
GCVE (VulDB): GCVE-100-58427

OVAL: 🔍

X-Force: 65150
SecurityFocus: 46103 - FUSE fusermount Multiple Unmounting Security Vulnerabilities
Vulnerability Center: 30363 - FUSE Fusermount Local Denial of Service Vulnerability, Low

See also: 🔍

Entryinfo

Created: 03/23/2015 16:50
Updated: 11/18/2021 15:28
Changes: 03/23/2015 16:50 (58), 03/19/2017 07:49 (12), 11/18/2021 15:22 (4), 11/18/2021 15:28 (2)
Complete: 🔍
Cache ID: 216:3CD:103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Want to know what is going to be exploited?

We predict KEV entries!