IBM AIX up to 6.1.2 Access Restriction credentials management

CVSS Meta Temp Score
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CTI Interest Score
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7.9$5k-$25k0.00

Summaryinfo

A vulnerability classified as problematic was found in IBM AIX up to 6.1.2. Impacted is an unknown function of the component Access Restriction. Such manipulation leads to credentials management. This vulnerability is referenced as CVE-2009-3516. No exploit is available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in IBM AIX up to 6.1.2 (Operating System). Affected by this issue is an unknown function of the component Access Restriction. The manipulation with an unknown input leads to a credentials management vulnerability. Using CWE to declare the problem leads to CWE-255. Impacted is confidentiality, integrity, and availability. CVE summarizes:

gssd in IBM AIX 5.3.x through 5.3.9 and 6.1.0 through 6.1.2 does not properly handle the NFSv4 Kerberos credential cache, which allows local users to bypass intended access restrictions for Kerberized NFSv4 shares via unspecified vectors.

The issue has been introduced in 08/01/2004. The weakness was published 10/01/2009 (Website). The advisory is available at www-01.ibm.com. This vulnerability is handled as CVE-2009-3516 since 10/01/2009. The exploitation is known to be easy. Local access is required to approach this attack. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 02/16/2025). It is expected to see the exploit prices for this product decreasing in the near future.This vulnerability is assigned to T1552 by the MITRE ATT&CK project.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 1768 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 39136 (AIX 6.1 TL 2 : bos.net.nfs.client (U824054)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family AIX Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 116621 (IBM AIX NFSv4 nfs_portmon and Kerberos Vulnerabilities).

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 (39136), SecurityFocus (BID 36545†) and Vulnerability Center (SBV-34232†). Similar entry is available at VDB-50331. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.4
VulDB Meta Temp Score: 7.9

VulDB Base Score: 8.4
VulDB Temp Score: 7.9
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: Credentials management
CWE: CWE-255
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 39136
Nessus Name: AIX 6.1 TL 2 : bos.net.nfs.client (U824054)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/01/2004 🔍
06/04/2009 +1768 days 🔍
09/29/2009 +117 days 🔍
10/01/2009 +2 days 🔍
10/01/2009 +0 days 🔍
10/01/2009 +0 days 🔍
10/01/2009 +0 days 🔍
01/17/2012 +838 days 🔍
03/18/2015 +1156 days 🔍
02/16/2025 +3623 days 🔍

Sourcesinfo

Vendor: ibm.com

Advisory: www-01.ibm.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2009-3516 (🔍)
GCVE (CVE): GCVE-0-2009-3516
GCVE (VulDB): GCVE-100-50330

OVAL: 🔍

SecurityFocus: 36545 - IBM AIX 'gssd' Kerberos Credential Cache Local Unauthorized Access Vulnerability
Vulnerability Center: 34232 - IBM AIX gssd NFSv4 Kerberos Credential Cache Allows Local Access to Kerberized Network Shares, High
Vupen: ADV-2009-2788

See also: 🔍

Entryinfo

Created: 03/18/2015 15:15
Updated: 02/16/2025 07:38
Changes: 03/18/2015 15:15 (58), 04/09/2017 13:25 (12), 08/23/2021 12:18 (3), 02/16/2025 07:38 (16)
Complete: 🔍
Cache ID: 216::103

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