Linux Kernel 2.6.28.2 audit_syscall_entry access control

CVSS Meta Temp Score
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CTI Interest Score
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4.6$0-$5k0.00

A vulnerability was found in Linux Kernel 2.6.28.2 (Operating System). It has been classified as problematic. Affected is the function audit_syscall_entry. 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 audit_syscall_entry function in the Linux kernel 2.6.28.7 and earlier on the x86_64 platform does not properly handle (1) a 32-bit process making a 64-bit syscall or (2) a 64-bit process making a 32-bit syscall, which allows local users to bypass certain syscall audit configurations via crafted syscalls, a related issue to CVE-2009-0342 and CVE-2009-0343.

The issue has been introduced in 12/25/2008. The weakness was disclosed 03/06/2009 by Roland McGrath as Bug 487990 as confirmed bug report (Bugzilla). The advisory is available at bugzilla.redhat.com. This vulnerability is traded as CVE-2009-0834 since 03/06/2009. The exploitability is told to be easy. Local access is required to approach this attack. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 71 days. During that time the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 41539 (SuSE 10 Security Update : the Linux kernel (ZYPP Patch Number 6237)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 116253 (Linux Kernel 32bit/64bit System Call Security Bypass Weaknesses).

Applying a patch is able to eliminate this problem. A possible mitigation has been published 3 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (49061) and Tenable (41539). The entry 47023 is pretty similar.

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: 5.1
VulDB Meta Temp Score: 4.6

VulDB Base Score: 5.1
VulDB Temp Score: 4.6
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: 🔍
Status: Proof-of-Concept

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Current Price Estimation: 🔍

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Nessus ID: 41539
Nessus Name: SuSE 10 Security Update : the Linux kernel (ZYPP Patch Number 6237)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 63939
OpenVAS Name: Debian Security Advisory DSA 1787-1 (linux-2.6.24)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍

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Timelineinfo

12/25/2008 🔍
02/28/2009 +65 days 🔍
03/02/2009 +2 days 🔍
03/03/2009 +1 days 🔍
03/06/2009 +3 days 🔍
03/06/2009 +0 days 🔍
03/06/2009 +0 days 🔍
03/17/2009 +11 days 🔍
05/01/2009 +45 days 🔍
05/12/2009 +11 days 🔍
09/24/2009 +135 days 🔍
03/17/2015 +2000 days 🔍
08/30/2019 +1627 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: Bug 487990
Researcher: Roland McGrath
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2009-0834 (🔍)
OVAL: 🔍

X-Force: 49061
SecurityTracker: 1022153
Vulnerability Center: 21299 - Linux Kernel x86_64 audit_syscall_entry Function Security Bypass Vulnerability via crafted syscalls, Low
SecurityFocus: 33951 - Linux Kernel Audit System 'audit_syscall_entry()' System Call Security Bypass Vulnerability
Secunia: 34084 - Linux Kernel 32bit/64bit System Call Security Bypass Weaknesses, Not Critical
OSVDB: 52461 - Linux Kernel 32bit/64bit audit_syscall_entry Function 32/64 Bit Syscall Cross-handling Audit Configuration Restriction Bypass
Vupen: ADV-2009-3316

See also: 🔍

Entryinfo

Created: 03/17/2015 16:11
Updated: 08/30/2019 18:47
Changes: 03/17/2015 16:11 (88), 08/30/2019 18:47 (7)
Complete: 🔍

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