Linux Kernel 2.6.32.51 cifs_find_smb_ses access control

CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in Linux Kernel 2.6.32.51. This affects the function cifs_find_smb_ses. The manipulation results in access control. This vulnerability was named CVE-2011-1585. In addition, an exploit is available.

Detailsinfo

A vulnerability was found in Linux Kernel 2.6.32.51 (Operating System). It has been classified as problematic. Affected is the function cifs_find_smb_ses. 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 confidentiality, and integrity. CVE summarizes:

The cifs_find_smb_ses function in fs/cifs/connect.c in the Linux kernel before 2.6.36 does not properly determine the associations between users and sessions, which allows local users to bypass CIFS share authentication by leveraging a mount of a share by a different user.

The issue has been introduced in 12/03/2009. The weakness was presented 06/08/2013 (Website). The advisory is shared for download at github.com. This vulnerability is traded as CVE-2011-1585 since 04/05/2011. The attack needs to be approached locally. The exploitation doesn't require any form of authentication. Technical details and a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1068.

A public exploit has been developed in ANSI C. The exploit is shared for download at securityfocus.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 719 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 56911 (Ubuntu 8.04 LTS : linux vulnerabilities (USN-1268-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 165562 (SUSE Enterprise Linux Security Update Linux Kernel (SUSE-SA:2011:026)).

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 (66813), Tenable (56911), SecurityFocus (BID 48101†) and Vulnerability Center (SBV-32202†). See VDB-7130, VDB-52270, VDB-56656 and VDB-56655 for similar entries. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.1
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.1
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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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
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 56911
Nessus Name: Ubuntu 8.04 LTS : linux vulnerabilities (USN-1268-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 881021
OpenVAS Name: CentOS Update for kernel CESA-2011:1386 centos5 i386
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: 4ff67b720c02c36e54d55b88c2931879b7db1cd2

Timelineinfo

12/03/2009 🔍
04/05/2011 +488 days 🔍
04/15/2011 +10 days 🔍
06/02/2011 +48 days 🔍
07/11/2011 +39 days 🔍
11/22/2011 +134 days 🔍
06/08/2013 +564 days 🔍
06/08/2013 +0 days 🔍
03/24/2015 +654 days 🔍
01/03/2022 +2477 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: USN-1268-1
Status: Not defined
Confirmation: 🔍

CVE: CVE-2011-1585 (🔍)
GCVE (CVE): GCVE-0-2011-1585
GCVE (VulDB): GCVE-100-64248

OVAL: 🔍

X-Force: 66813
SecurityFocus: 48101 - Linux Kernel KSM Local Denial of Service Vulnerability
Vulnerability Center: 32202 - Linux Kernel 2.6-2.6.38-rc2 Local Security Bypass Vulnerability, Low

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

Entryinfo

Created: 03/24/2015 15:54
Updated: 01/03/2022 08:52
Changes: 03/24/2015 15:54 (65), 03/27/2017 09:09 (14), 01/03/2022 08:49 (5), 01/03/2022 08:52 (2)
Complete: 🔍
Cache ID: 216:2B2:103

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