IBM AIX up to 5.3.0.20 named8 link following

CVSS Meta Temp Score
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CTI Interest Score
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6.8$0-$5k0.00

Summaryinfo

A vulnerability was found in IBM AIX up to 5.3.0.20. It has been classified as problematic. This affects an unknown function of the component named8. Performing a manipulation results in link following. This vulnerability is known as CVE-2006-1247. No exploit is available. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability was found in IBM AIX up to 5.3.0.20 (Operating System). It has been classified as critical. This affects an unknown code block of the component named8. The manipulation with an unknown input leads to a link following vulnerability. CWE is classifying the issue as CWE-59. The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

rm_mlcache_file in bos.rte.install in AIX 5.1.0 through 5.3.0 allows local users to overwrite arbitrary files via a symlink attack on temporary files.

The bug was discovered 04/17/2006. The weakness was published 04/18/2006 by NSFOCUS with IBM as confirmed posting (Bugtraq). It is possible to read the advisory at securityfocus.com. This vulnerability is uniquely identified as CVE-2006-1247 since 03/17/2006. Access to the local network is required for this attack. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 579 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 65290 (AIX 5.3 TL 4 / 5.3 TL 5 : bos.rte.install (U805035)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family AIX Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 115444 (IBM AIX RM_MLCache_File Insecure Temporary File Creation Vulnerability).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at aix.software.ibm.com. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (25848), Tenable (65290), SecurityFocus (BID 17576†), OSVDB (24706†) and Secunia (SA19656†). 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: 🔍
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CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 6.8

VulDB Base Score: 7.6
VulDB Temp Score: 6.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Link following
CWE: CWE-59
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 65290
Nessus Name: AIX 5.3 TL 4 / 5.3 TL 5 : bos.rte.install (U805035)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: aix.software.ibm.com

Timelineinfo

08/01/2004 🔍
03/03/2006 +579 days 🔍
03/17/2006 +14 days 🔍
04/17/2006 +31 days 🔍
04/17/2006 +0 days 🔍
04/18/2006 +1 days 🔍
04/18/2006 +0 days 🔍
04/18/2006 +0 days 🔍
04/18/2006 +0 days 🔍
04/19/2006 +0 days 🔍
04/19/2006 +0 days 🔍
04/20/2006 +1 days 🔍
11/07/2006 +201 days 🔍
03/13/2013 +2318 days 🔍
06/22/2025 +4484 days 🔍

Sourcesinfo

Vendor: ibm.com

Advisory: securityfocus.com⛔
Researcher: NSFOCUS
Organization: IBM
Status: Confirmed

CVE: CVE-2006-1247 (🔍)
GCVE (CVE): GCVE-0-2006-1247
GCVE (VulDB): GCVE-100-2175
X-Force: 25848 - IBM AIX rm_mlcache_file race condition file overwrite, Medium Risk
SecurityFocus: 17576 - IBM AIX RM_MLCache_File Insecure Temporary File Creation Vulnerability
Secunia: 19656 - IBM AIX rm_mlcache_file Arbitrary File Overwrite, Less Critical
OSVDB: 24706 - IBM AIX rm_mlcache_file Symlink Arbitrary File Overwrite
SecurityTracker: 1015952
Vulnerability Center: 13067 - IBM AIX 5.1.0-5.3.0 Allows Local Users to Overwrite Arbitrary Files Via a Symlink, Medium
Vupen: ADV-2006-1389

Entryinfo

Created: 04/20/2006 13:03
Updated: 06/22/2025 20:50
Changes: 04/20/2006 13:03 (97), 07/10/2019 16:32 (2), 06/22/2025 20:50 (18)
Complete: 🔍
Cache ID: 216::103

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