Linux Kernel 2.6.16.9 authentication spoofing

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.1$0-$5k0.00

A vulnerability was found in Linux Kernel 2.6.16.9 (Operating System) and classified as problematic. This issue affects some unknown processing. The manipulation with an unknown input leads to a authentication spoofing vulnerability. Using CWE to declare the problem leads to CWE-290. This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks. Impacted is integrity, and availability. The summary by CVE is:

kernel/signal.c in the Linux kernel before 2.6.39 allows local users to spoof the uid and pid of a signal sender via a sigqueueinfo system call.

The issue has been introduced in 03/20/2006. The weakness was released 03/01/2013 by Julien Tinnes (Website). It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2011-1182. The exploitation is known to be easy. Attacking locally is a requirement. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 2538 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 68331 (Oracle Linux 6 : kernel (ELSA-2011-1189)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 165558 (SUSE Enterprise Linux Security Update Linux Kernel (SUSE-SA:2011:019)).

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 (66274) and Tenable (68331).

Productinfo

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Vendor

Name

Version

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: 5.1
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.1
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Authentication spoofing
CWE: CWE-290 / CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 68331
Nessus Name: Oracle Linux 6 : kernel (ELSA-2011-1189)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 69970
OpenVAS Name: Debian Security Advisory DSA 2264-1 (linux-2.6)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Patch: da48524eb20662618854bb3df2db01fc65f3070c

Timelineinfo

03/20/2006 🔍
03/03/2011 +1808 days 🔍
03/22/2011 +19 days 🔍
03/23/2011 +1 days 🔍
05/09/2011 +47 days 🔍
03/01/2013 +662 days 🔍
03/01/2013 +0 days 🔍
07/12/2013 +133 days 🔍
03/24/2015 +620 days 🔍
12/29/2021 +2472 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: RHSA-2011:1189
Researcher: Julien Tinnes
Status: Not defined
Confirmation: 🔍

CVE: CVE-2011-1182 (🔍)
OVAL: 🔍
IAVM: 🔍

X-Force: 66274
Vulnerability Center: 31369 - Linux Kernel 2.6.38-rc2 and prior Local Denial of Service Vulnerability, Medium
SecurityFocus: 47003 - Linux Kernel Signal Code Spoofing Local Denial of Service Vulnerability

Entryinfo

Created: 03/24/2015 12:22
Updated: 12/29/2021 19:35
Changes: 03/24/2015 12:22 (66), 03/22/2017 09:40 (10), 12/29/2021 19:20 (7), 12/29/2021 19:27 (1), 12/29/2021 19:35 (2)
Complete: 🔍
Cache ID: 18:CF4:103

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