Linux Kernel up to 2.6.17.4 prctl resource management

CVSS Meta Temp Score
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7.9$0-$5k0.00

A vulnerability, which was classified as critical, has been found in Linux Kernel up to 2.6.17.4 (Operating System). Affected by this issue is an unknown functionality of the component prctl. The manipulation with an unknown input leads to a resource management vulnerability. Using CWE to declare the problem leads to CWE-399. Impacted is confidentiality, integrity, and availability. CVE summarizes:

The suid_dumpable support in Linux kernel 2.6.13 up to versions before 2.6.17.4, and 2.6.16 before 2.6.16.24, allows a local user to cause a denial of service (disk consumption) and possibly gain privileges via the PR_SET_DUMPABLE argument of the prctl function and a program that causes a core dump file to be created in a directory for which the user does not have permissions.

The bug was discovered 07/06/2006. The weakness was published 07/07/2006 by Red Hat and Inc. with Red Hat (Website). The advisory is shared for download at kernel.org. This vulnerability is handled as CVE-2006-2451 since 05/18/2006. The attack can only be done within the local network. No form of authentication is required for exploitation. Technical details are unknown but a public exploit is available.

A public exploit has been developed in ANSI C. The exploit is available at rs-labs.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 22015 (RHEL 4 : kernel (RHSA-2006:0574)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Red Hat Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 165140 (SUSE Security Update for kernel (SUSE-SA:2006:042)).

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at kernel.org. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published 3 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (27628), Tenable (22015) and Exploit-DB (2004). Similar entries are available at 2224, 2326, 2476 and 30335.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

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CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 7.9

VulDB Base Score: 8.8
VulDB Temp Score: 7.9
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VulDB Reliability: 🔍

CVSSv2info

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Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Partially

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

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Nessus ID: 22015
Nessus Name: RHEL 4 : kernel (RHSA-2006:0574)
Nessus File: 🔍
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OpenVAS ID: 65035
OpenVAS Name: SLES9: Security update for Linux kernel
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Exploit-DB: 🔍

Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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Patch: kernel.org

Timelineinfo

05/18/2006 🔍
07/06/2006 +49 days 🔍
07/06/2006 +0 days 🔍
07/07/2006 +1 days 🔍
07/07/2006 +0 days 🔍
07/07/2006 +0 days 🔍
07/07/2006 +0 days 🔍
07/07/2006 +0 days 🔍
07/10/2006 +2 days 🔍
07/17/2006 +7 days 🔍
07/17/2006 +0 days 🔍
07/25/2006 +8 days 🔍
09/18/2006 +55 days 🔍
06/22/2019 +4660 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: kernel.org
Researcher: Red Hat, Inc.
Organization: Red Hat
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2006-2451 (🔍)
OVAL: 🔍

X-Force: 27628
SecurityTracker: 1016451
Vulnerability Center: 12278 - Linux Kernel Local Denial of Service and Privilege Escalation, Medium
SecurityFocus: 18874 - Linux Kernel PRCTL Core Dump Handling Privilege Escalation Vulnerability
Secunia: 21966 - Avaya Modular Messaging Linux Kernel "prctl" Privilege Escalation, Less Critical
OSVDB: 27030 - Linux Kernel prctl Core Dumpe Handling Local Privilege Escalation
Vupen: ADV-2006-2699

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

Entryinfo

Created: 07/17/2006 12:07
Updated: 06/22/2019 14:24
Changes: 07/17/2006 12:07 (108), 06/22/2019 14:24 (1)
Complete: 🔍

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