Linux Kernel 2.6.16.9 acpi_debugfs_init access control

CVSS Meta Temp Score
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CTI Interest Score
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8.8$0-$5k0.00

A vulnerability has been found in Linux Kernel 2.6.16.9 (Operating System) and classified as critical. This vulnerability affects the function acpi_debugfs_init. 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. CVE summarizes:

The ACPI subsystem in the Linux kernel before 2.6.36.2 uses 0222 permissions for the debugfs custom_method file, which allows local users to gain privileges by placing a custom ACPI method in the ACPI interpreter tables, related to the acpi_debugfs_init function in drivers/acpi/debugfs.c.

The issue has been introduced in 03/20/2006. The weakness was published 12/22/2010 by Jon Oberheide as Bug 663542 as confirmed bug report (Bugzilla). The advisory is shared for download at bugzilla.redhat.com. This vulnerability was named CVE-2010-4347 since 11/30/2010. The attack needs to be approached locally. No form of authentication is required for a successful exploitation. Technical details and also a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1068.

A public exploit has been developed by Jon Oberheide in ANSI C and been published even before and not after the advisory. 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 1617 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 75553 (openSUSE Security Update : kernel (openSUSE-SU-2011:0004-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks.

A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (64155), Tenable (75553) and Exploit-DB (15774). Similar entries are available at 55570, 54463, 56001 and 56000.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 9.3
VulDB Meta Temp Score: 8.8

VulDB Base Score: 9.3
VulDB Temp Score: 8.8
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
Author: Jon Oberheide
Programming Language: 🔍
Download: 🔍

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Nessus ID: 75553
Nessus Name: openSUSE Security Update : kernel (openSUSE-SU-2011:0004-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 850157
OpenVAS Name: SuSE Update for kernel SUSE-SA:2011:001
OpenVAS File: 🔍
OpenVAS Family: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Patch: ed3aada1bf34c5a9e98af167f125f8a740fc726a

Timelineinfo

03/20/2006 🔍
08/23/2010 +1617 days 🔍
11/30/2010 +99 days 🔍
12/15/2010 +15 days 🔍
12/15/2010 +0 days 🔍
12/16/2010 +1 days 🔍
12/18/2010 +2 days 🔍
12/18/2010 +0 days 🔍
12/22/2010 +4 days 🔍
12/22/2010 +0 days 🔍
12/24/2010 +2 days 🔍
01/03/2011 +9 days 🔍
03/19/2015 +1536 days 🔍
10/07/2021 +2394 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: Bug 663542
Researcher: Jon Oberheide
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2010-4347 (🔍)
X-Force: 64155
Vulnerability Center: 28690 - Linux kernel prior to 2.6.37rc Local Arbitrary Code Execution Vulnerability, High
SecurityFocus: 45408 - Linux Kernel 'drivers/acpi/debugfs.c' Local Privilege Escalation Vulnerability
Secunia: 42778 - SUSE update for kernel, Moderately Critical
OSVDB: 70022 - Linux Kernel ACPI Subsystem Interpreter Tables debugfs custom_method File Permissions Weakness Local Privilege Escalation
Vupen: ADV-2011-0012

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

Entryinfo

Created: 03/19/2015 23:27
Updated: 10/07/2021 14:26
Changes: 03/19/2015 23:27 (62), 03/11/2017 08:56 (28), 10/07/2021 14:22 (4), 10/07/2021 14:26 (1)
Complete: 🔍

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