Linux Kernel 2.6.16.9 information disclosure

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.0$0-$5k0.00

A vulnerability has been found in Linux Kernel 2.6.16.9 (Operating System) and classified as problematic. Affected by this vulnerability is an unknown function. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality. The summary by CVE is:

net/ipv6/netfilter/ip6_tables.c in the IPv6 implementation in the Linux kernel before 2.6.39 does not place the expected \0 character at the end of string data in the values of certain structure members, which allows local users to obtain potentially sensitive information from kernel memory by leveraging the CAP_NET_ADMIN capability to issue a crafted request, and then reading the argument to the resulting modprobe process.

The issue has been introduced in 03/20/2006. The weakness was disclosed 06/22/2011 as Bug 689345 as not defined bug report (Bugzilla). The advisory is shared at bugzilla.redhat.com. This vulnerability is known as CVE-2011-1172 since 03/03/2011. The exploitation appears to be easy. An attack has to be approached locally. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 1920 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 67081 (CentOS 5 : kernel (CESA-2011:0833)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 165567 (SUSE Enterprise Linux Security Update Linux Kernel (SUSE-SA:2011:031)).

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 (66184) and Tenable (67081). The entries 57033, 61066, 61064 and 57962 are pretty similar.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

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

CVSSv3info

VulDB Meta Base Score: 4.0
VulDB Meta Temp Score: 4.0

VulDB Base Score: 4.0
VulDB Temp Score: 4.0
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: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
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: 67081
Nessus Name: CentOS 5 : kernel (CESA-2011:0833)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

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: 6a8ab060779779de8aea92ce3337ca348f973f54

Timelineinfo

03/20/2006 🔍
03/03/2011 +1809 days 🔍
03/10/2011 +7 days 🔍
03/10/2011 +0 days 🔍
06/22/2011 +104 days 🔍
06/22/2011 +0 days 🔍
06/23/2011 +1 days 🔍
03/23/2015 +1369 days 🔍
11/13/2021 +2427 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: Bug 689345
Status: Not defined
Confirmation: 🔍

CVE: CVE-2011-1172 (🔍)
OVAL: 🔍
IAVM: 🔍

X-Force: 66184
Vulnerability Center: 31989 - Linux Kernel before 2.6.39 Local Information Disclosure Vulnerability (CVE-2011-1172), Medium
SecurityFocus: 46919 - Linux Kernel Netfilter and Econet Local Information Disclosure Vulnerabilities

See also: 🔍

Entryinfo

Created: 03/23/2015 16:50
Updated: 11/13/2021 11:46
Changes: 03/23/2015 16:50 (64), 03/24/2017 18:33 (13), 11/13/2021 11:39 (4), 11/13/2021 11:46 (1)
Complete: 🔍

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