Linux Kernel 2.6.28 exit_notify access control

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Linux Kernel 2.6.28. This affects the function exit_notify. Performing a manipulation results in access control. This vulnerability is reported as CVE-2009-1337. Moreover, an exploit is present. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Linux Kernel 2.6.28 (Operating System). This affects the function exit_notify. 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, integrity, and availability. The summary by CVE is:

The exit_notify function in kernel/exit.c in the Linux kernel before 2.6.30-rc1 does not restrict exit signals when the CAP_KILL capability is held, which allows local users to send an arbitrary signal to a process by running a program that modifies the exit_signal field and then uses an exec system call to launch a setuid application.

The bug was discovered 04/06/2009. The weakness was disclosed 04/22/2009 (Website). It is possible to read the advisory at patchwork.kernel.org. This vulnerability is uniquely identified as CVE-2009-1337 since 04/17/2009. Attacking locally is a requirement. No form of authentication is needed for exploitation. Technical details and a public exploit are known. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

A public exploit has been developed in Shell File. The exploit is shared for download at securityfocus.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 118 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 43746 (CentOS 5 : kernel (CESA-2009:0473)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 165644 (SUSE Enterprise Linux Security Update Linux Kernel (SUSE-SA:2009:028)).

Upgrading eliminates this vulnerability. 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 (49732), Exploit-DB (8369), Tenable (43746), SecurityFocus (BID 34405†) and OSVDB (53629†). The entries VDB-45859, VDB-48056, VDB-47924 and VDB-47604 are pretty similar. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.9
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

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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
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 43746
Nessus Name: CentOS 5 : kernel (CESA-2009:0473)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

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

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

12/25/2008 🔍
04/06/2009 +102 days 🔍
04/07/2009 +1 days 🔍
04/07/2009 +0 days 🔍
04/08/2009 +1 days 🔍
04/17/2009 +9 days 🔍
04/22/2009 +5 days 🔍
04/22/2009 +0 days 🔍
04/29/2009 +7 days 🔍
04/29/2009 +0 days 🔍
05/07/2009 +8 days 🔍
01/06/2010 +244 days 🔍
03/17/2015 +1896 days 🔍
12/20/2024 +3566 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: patchwork.kernel.org
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2009-1337 (🔍)
GCVE (CVE): GCVE-0-2009-1337
GCVE (VulDB): GCVE-100-47847

OVAL: 🔍

X-Force: 49732
SecurityFocus: 34405 - Linux Kernel 'exit_notify()' CAP_KILL Verification Local Privilege Escalation Vulnerability
Secunia: 34917
OSVDB: 53629 - CVE-2009-1337 - Linux - Kernel - Privilege Escalation Issue
SecurityTracker: 1022141
Vulnerability Center: 21504 - Linux Kernel < 2.6.30-rc1 CAP_KILL Verification Local Arbitrary Code Execution Vulnerability, High
Vupen: ADV-2009-3316

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

Entryinfo

Created: 03/17/2015 23:38
Updated: 12/20/2024 20:18
Changes: 03/17/2015 23:38 (87), 09/01/2019 07:00 (7), 12/20/2024 20:18 (17)
Complete: 🔍
Cache ID: 216:22F:103

Be aware that VulDB is the high quality source for vulnerability data.

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