Linux Kernel 2.6.28.2 symlink

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.9	$5k-$25k	0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Linux Kernel 2.6.28.2. The impacted element is an unknown function. The manipulation results in symlink. This vulnerability is known as CVE-2010-1088. No exploit is available.

Detailsinfo

A vulnerability was found in Linux Kernel 2.6.28.2 (Operating System). It has been classified as critical. Affected is an unknown functionality. The manipulation with an unknown input leads to a symlink vulnerability. CWE is classifying the issue as CWE-61. The product, when opening a file or directory, does not sufficiently account for when the file is a symbolic link that resolves to a target outside of the intended control sphere. This could allow an attacker to cause the product to operate on unauthorized files. This is going to have an impact on availability. CVE summarizes:

fs/namei.c in Linux kernel 2.6.18 through 2.6.34 does not always follow NFS automount "symlinks," which allows attackers to have an unknown impact, related to LOOKUP_FOLLOW.

The issue has been introduced in 12/25/2008. The weakness was published 04/06/2010 by Eugene Teo as Bug 567813 as not defined bug report (Bugzilla). The advisory is shared for download at bugzilla.redhat.com. This vulnerability is traded as CVE-2010-1088. The exploitability is told to be difficult. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 02/01/2025).

The vulnerability was handled as a non-public zero-day exploit for at least 467 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 47702 (CentOS 5 : kernel (CESA-2010:0504)), 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 165591 (SUSE Enterprise Linux Security Update Linux Kernel (SUSE-SA:2010:023)).

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 Tenable (47702), SecurityFocus (BID 39044†), Secunia (SA43315†) and Vulnerability Center (SBV-25193†). Similar entries are available at VDB-51918, VDB-51856, VDB-51485 and VDB-53302. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Operating System

Vendor

Linux

Name

Kernel

Version

2.6.28.2

License

open-source

Website

Vendor: https://www.kernel.org/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

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

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Symlink
CWE: CWE-61 / CWE-59
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
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Nessus ID: 47702
Nessus Name: CentOS 5 : kernel (CESA-2010:0504)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 67406
OpenVAS Name: Debian Security Advisory DSA 2053-1 (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: 🔍

Timelineinfo

12/25/2008 🔍
02/23/2010 +425 days 🔍
02/23/2010 +0 days 🔍
03/23/2010 +27 days 🔍
03/31/2010 +8 days 🔍
04/06/2010 +6 days 🔍
04/06/2010 +0 days 🔍
03/19/2015 +1808 days 🔍
02/01/2025 +3607 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: Bug 567813
Researcher: Eugene Teo
Status: Not defined
Confirmation: 🔍

CVE: CVE-2010-1088 (🔍)
GCVE (CVE): GCVE-0-2010-1088
GCVE (VulDB): GCVE-100-52620

OVAL: 🔍
IAVM: 🔍

SecurityFocus: 39044 - Linux Kernel NFS Automount 'symlinks' Denial of Service Vulnerability
Secunia: 43315
Vulnerability Center: 25193 - Linux Kernel 2.6.17 - 2.6.32 NFS Automount \x27symlinks\x27 Remote DoS Vulnerability, Medium

See also: 🔍

Entryinfo

Created: 03/19/2015 12:22
Updated: 02/01/2025 22:00
Changes: 03/19/2015 12:22 (64), 02/22/2017 10:52 (11), 09/07/2021 09:49 (4), 09/07/2021 09:50 (1), 02/01/2025 22:00 (15)
Complete: 🔍
Cache ID: 216:F62:103