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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8.4$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Linux Kernel 2.6.16.9. This issue affects the function acpi_debugfs_init. Executing a manipulation can lead to access control. This vulnerability is registered as CVE-2010-4347. Furthermore, an exploit is available.

Detailsinfo

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. The commercial vulnerability scanner Qualys is able to test this issue with plugin 165170 (SUSE Security Update for Kernel (SUSE-SA:2011:001)).

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), Exploit-DB (15774), Tenable (75553), SecurityFocus (BID 45408†) and OSVDB (70022†). Similar entries are available at VDB-55570, VDB-54463, VDB-56001 and VDB-56000. 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: 9.3
VulDB Meta Temp Score: 8.4

VulDB Base Score: 9.3
VulDB Temp Score: 8.4
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: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Jon Oberheide
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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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: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

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 🔍
02/01/2025 +3607 days 🔍

Sourcesinfo

Vendor: kernel.org

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

CVE: CVE-2010-4347 (🔍)
GCVE (CVE): GCVE-0-2010-4347
GCVE (VulDB): GCVE-100-55840
X-Force: 64155
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
Vulnerability Center: 28690 - Linux kernel prior to 2.6.37rc Local Arbitrary Code Execution Vulnerability, High
Vupen: ADV-2011-0012

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

Entryinfo

Created: 03/19/2015 23:27
Updated: 02/01/2025 20:39
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), 06/18/2024 13:45 (15), 02/01/2025 20:39 (6)
Complete: 🔍
Cache ID: 216:51E:103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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