IBM AIX 5.3/6.1/7.1 LDAP Authentication getpwnam access control

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in IBM AIX 5.3/6.1/7.1. This impacts the function getpwnam of the component LDAP Authentication. The manipulation results in access control. This vulnerability was named CVE-2012-0745. In addition, an exploit is available. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability was found in IBM AIX 5.3/6.1/7.1 (Operating System). It has been classified as problematic. Affected is the function getpwnam of the component LDAP Authentication. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-264. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

The getpwnam function in IBM AIX 5.3, 6.1, and 7.1 and VIOS 2.1.0.10 through 2.2.1.3 does not properly interact with customer-extended LDAP user filtering, which allows local users to gain privileges via unspecified vectors.

The issue has been introduced in 08/01/2004. The weakness was presented 05/03/2012 as confirmed knowledge base article (Website). The advisory is shared for download at aix.software.ibm.com. The public release happened without coordination with the vendor. This vulnerability is traded as CVE-2012-0745 since 01/17/2012. The attack needs to be approached locally. The requirement for exploitation is a authentication. Technical details and a exploit are known. The MITRE ATT&CK project declares the attack technique as T1068.

It is declared as highly functional. The vulnerability was handled as a non-public zero-day exploit for at least 2832 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 63715 (AIX 7.1 TL 0 : ldapauth (IV19098)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family AIX Local Security Checks.

Upgrading eliminates this vulnerability. The upgrade is hosted for download at aix.software.ibm.com. Applying a patch is able to eliminate this problem. The bugfix is ready for download at aix.software.ibm.com. The best possible mitigation is suggested to be patching the affected component. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (74679), Tenable (63715), SecurityFocus (BID 53393†), OSVDB (81683†) and Secunia (SA49073†). Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Highly functional

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 63715
Nessus Name: AIX 7.1 TL 0 : ldapauth (IV19098)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: aix.software.ibm.com
Patch: aix.software.ibm.com

Timelineinfo

08/01/2004 🔍
01/17/2012 +2725 days 🔍
05/03/2012 +107 days 🔍
05/03/2012 +0 days 🔍
05/04/2012 +1 days 🔍
05/04/2012 +0 days 🔍
05/04/2012 +0 days 🔍
05/04/2012 +0 days 🔍
05/06/2012 +2 days 🔍
05/07/2012 +1 days 🔍
05/15/2012 +8 days 🔍
01/24/2013 +254 days 🔍
03/24/2021 +2981 days 🔍

Sourcesinfo

Vendor: ibm.com

Advisory: aix.software.ibm.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2012-0745 (🔍)
GCVE (CVE): GCVE-0-2012-0745
GCVE (VulDB): GCVE-100-5388

OVAL: 🔍

X-Force: 74679 - AIX getpwnam() function privilege escalation, High Risk
SecurityFocus: 53393 - IBM AIX 'getpwnam()' Local Privilege Escalation Vulnerability
Secunia: 49073 - IBM AIX "getpwnam()" LDAP Filtering Privilege Escalation Vulnerability, Less Critical
OSVDB: 81683
SecurityTracker: 1027021 - IBM AIX LDAP Authentication Flaw Lets Local Users Gain Elevated Privileges
Vulnerability Center: 34988 - IBM AIX 5.3, 6.1, and 7.1 and VIOS 2.1.0.10-2.2.1.3 getpwnam() Allows Local Privilege Escalation, Medium

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 05/15/2012 11:36
Updated: 03/24/2021 15:30
Changes: 05/15/2012 11:36 (79), 04/11/2017 11:13 (11), 03/24/2021 15:30 (3)
Complete: 🔍
Cache ID: 216::103

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