Linux Kernel 2.6.0 proc link following

CVSS Meta Temp Score
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CTI Interest Score
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5.7$0-$5k0.00

A vulnerability, which was classified as problematic, has been found in Linux Kernel 2.6.0 (Operating System). Affected by this issue is an unknown part of the file proc. The manipulation with an unknown input leads to a link following vulnerability. Using CWE to declare the problem leads to CWE-59. The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Linux kernel 2.6, when using vservers, allows local users to access resources of other vservers via a symlink attack in /proc.

The bug was discovered 02/11/2008. The weakness was presented 02/12/2008 with Debian (Website). The advisory is shared for download at debian.org. This vulnerability is handled as CVE-2008-0163 since 01/09/2008. The attack needs to be approached locally. No form of authentication is required for exploitation. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 1517 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 31028 (Debian DSA-1494-2 : linux-2.6 - missing access checks), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 115715 (SuSE Linux Multiple Memory Access Vulnerabilities).

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (40486) and Tenable (31028). See 40983 and 40982 for similar entries.

Productinfo

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License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.7

VulDB Base Score: 5.9
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Link following
CWE: CWE-59
ATT&CK: Unknown

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 31028
Nessus Name: Debian DSA-1494-2 : linux-2.6 - missing access checks
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 60369
OpenVAS Name: Debian Security Advisory DSA 1494-1 (linux-2.6)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/18/2003 🔍
01/09/2008 +1483 days 🔍
02/08/2008 +30 days 🔍
02/11/2008 +3 days 🔍
02/12/2008 +1 days 🔍
02/12/2008 +0 days 🔍
02/12/2008 +0 days 🔍
02/13/2008 +1 days 🔍
02/14/2008 +1 days 🔍
03/16/2015 +2587 days 🔍
08/03/2019 +1601 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: debian.org
Organization: Debian
Status: Not defined

CVE: CVE-2008-0163 (🔍)
OVAL: 🔍

X-Force: 40486
Vulnerability Center: 17620 - Linux Kernel Vulnerability Allows Local Users to Access Vservers Resources via Symlink Attack, Low
SecurityFocus: 27798 - Linux Kernel Prior to 2.6.24.1 '/proc' Local Memory Access Vulnerability
Secunia: 28875
OSVDB: 43220 - Linux - Kernel - Prior to 2.6.24.1 '.proc' Local Memory Access Issue

See also: 🔍

Entryinfo

Created: 03/16/2015 13:43
Updated: 08/03/2019 20:01
Changes: 03/16/2015 13:43 (75), 08/03/2019 20:01 (6)
Complete: 🔍

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