Linux Kernel up to 2.6.25.12 __secure_computing access control

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

A vulnerability was found in Linux Kernel (Operating System). It has been declared as problematic. Affected by this vulnerability is the function __secure_computing. 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, and integrity. The summary by CVE is:

The __secure_computing function in kernel/seccomp.c in the seccomp subsystem in the Linux kernel 2.6.28.7 and earlier on the x86_64 platform, when CONFIG_SECCOMP is enabled, 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 intended access restrictions via crafted syscalls that are misinterpreted as (a) stat or (b) chmod, a related issue to CVE-2009-0342 and CVE-2009-0343.

The issue has been introduced in 04/17/2008. The weakness was presented 03/06/2009 by Chris Evans as Bug 487255 as not defined bug report (Bugzilla). It is possible to read the advisory at bugzilla.redhat.com. This vulnerability is known as CVE-2009-0835 since 03/06/2009. The exploitation appears to be easy. Attacking locally is a requirement. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 323 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 38795 (Debian DSA-1800-1 : linux-2.6 - denial of service/privilege escalation/sensitive memory leak), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 116253 (Linux Kernel 32bit/64bit System Call Security Bypass Weaknesses).

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 (49059) and Tenable (38795). See 47022 for similar entry.

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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: 5.1

VulDB Base Score: 5.1
VulDB Temp Score: 5.1
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: Not defined

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EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 38795
Nessus Name: Debian DSA-1800-1 : linux-2.6 - denial of service/privilege escalation/sensitive memory leak
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 64034
OpenVAS Name: Debian Security Advisory DSA 1800-1 (linux-2.6)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/17/2008 🔍
02/25/2009 +314 days 🔍
03/02/2009 +5 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 🔍
03/17/2015 +2191 days 🔍
08/04/2021 +2332 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: Bug 487255
Researcher: Chris Evans
Status: Not defined

CVE: CVE-2009-0835 (🔍)
OVAL: 🔍

X-Force: 49059
Vulnerability Center: 21300 - Linux Kernel x86_64 secure_computing Function Security Bypass Vulnerability via crafted syscalls, Low
SecurityFocus: 33948 - Linux Kernel 'seccomp' System Call Security Bypass Vulnerability
Secunia: 34084 - Linux Kernel 32bit/64bit System Call Security Bypass Weaknesses, Not Critical

See also: 🔍

Entryinfo

Created: 03/17/2015 16:11
Updated: 08/04/2021 21:05
Changes: 03/17/2015 16:11 (64), 04/13/2017 12:26 (15), 08/04/2021 21:05 (2)
Complete: 🔍

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