Linux Kernel 2.6.28.2 access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.9$0-$5k0.00

A vulnerability was found in Linux Kernel 2.6.28.2 (Operating System). It has been declared as critical. Affected by this vulnerability is some unknown processing. 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 confidentiality, integrity, and availability. The summary by CVE is:

The EXT4_IOC_MOVE_EXT (aka move extents) ioctl implementation in the ext4 filesystem in the Linux kernel before 2.6.32-git6 allows local users to overwrite arbitrary files via a crafted request, related to insufficient checks for file permissions.

The issue has been introduced in 12/25/2008. The weakness was disclosed 12/12/2009 as Bug 544471 as not defined bug report (Bugzilla). It is possible to read the advisory at bugzilla.redhat.com. This vulnerability is known as CVE-2009-4131 since 12/01/2009. The exploitation appears to be easy. Attacking locally is a requirement. The exploitation doesn't need any form of authentication. Technical details are unknown but a public exploit is available. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

It is possible to download the exploit at securityfocus.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 351 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 43103 (Fedora 12 : kernel-2.6.31.6-166.fc12 (2009-13039)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 165244 (SUSE Security Update for Kernel (SUSE-SA:2010:001)).

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 vulnerability database at Tenable (43103). The entries 51131, 51130, 51129 and 51068 are pretty similar.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

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

VulDB Meta Base Score: 8.4
VulDB Meta Temp Score: 7.9

VulDB Base Score: 8.4
VulDB Temp Score: 7.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

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

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: 43103
Nessus Name: Fedora 12 : kernel-2.6.31.6-166.fc12 (2009-13039)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 66499
OpenVAS Name: Fedora Core 12 FEDORA-2009-13039 (kernel)
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: 🔍

Timelineinfo

12/25/2008 🔍
12/01/2009 +341 days 🔍
12/09/2009 +8 days 🔍
12/10/2009 +1 days 🔍
12/11/2009 +1 days 🔍
12/12/2009 +1 days 🔍
12/12/2009 +0 days 🔍
12/13/2009 +1 days 🔍
03/18/2015 +1921 days 🔍
08/28/2021 +2355 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: Bug 544471
Status: Not defined
Confirmation: 🔍

CVE: CVE-2009-4131 (🔍)
OVAL: 🔍
IAVM: 🔍

Vulnerability Center: 24345 - Linux Kernel Prior to 2.6.32-git6 EXT4_IOC_MOVE_EXT Local Arbitrary Code Execution Vulnerability, High
SecurityFocus: 37277
Secunia: 37658 - Linux Kernel Ext4 Multiple Vulnerabilities, Less Critical
Vupen: ADV-2009-3468

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

Entryinfo

Created: 03/18/2015 15:15
Updated: 08/28/2021 15:31
Changes: 03/18/2015 15:15 (68), 02/18/2017 09:25 (15), 08/28/2021 15:31 (3)
Complete: 🔍

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