IBM AIX 5.3/6.1/7.1 dupmsg Kernel Extension input validation

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.
5.4$0-$5k0.00

Summaryinfo

A vulnerability was found in IBM AIX 5.3/6.1/7.1. It has been declared as problematic. This impacts an unknown function of the component dupmsg Kernel Extension. Executing a manipulation can lead to input validation. This vulnerability is tracked as CVE-2012-0723. No exploit exists. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability has been found in IBM AIX 5.3/6.1/7.1 (Operating System) and classified as problematic. This vulnerability affects some unknown processing of the component dupmsg Kernel Extension. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect availability. CVE summarizes:

The kernel in IBM AIX 5.3, 6.1, and 7.1, and VIOS 2.2.1.4-FP-25 SP-02, does not properly implement the dupmsg system call, which allows local users to cause a denial of service (system crash) via a crafted application.

The issue has been introduced in 08/01/2004. The weakness was disclosed 07/26/2012 by Jakub Wartak as confirmed advisory (IBM Knowledge Base). The advisory is shared for download at aix.software.ibm.com. This vulnerability was named CVE-2012-0723 since 01/17/2012. The exploitation appears to be easy. The attack needs to be approached locally. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 2916 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 63726 (AIX 5.3 TL 12 : syscall (IV22694)), 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 120861 (IBM AIX System Call Local Denial of Service 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 immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (74134), Tenable (63726), SecurityFocus (BID 54706†), OSVDB (84225†) and Secunia (SA50003†). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.2
VulDB Meta Temp Score: 5.4

VulDB Base Score: 6.2
VulDB Temp Score: 5.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 63726
Nessus Name: AIX 5.3 TL 12 : syscall (IV22694)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Patch: aix.software.ibm.com

Timelineinfo

08/01/2004 🔍
01/17/2012 +2725 days 🔍
07/26/2012 +191 days 🔍
07/26/2012 +0 days 🔍
07/26/2012 +0 days 🔍
07/26/2012 +0 days 🔍
07/27/2012 +1 days 🔍
07/27/2012 +0 days 🔍
07/28/2012 +1 days 🔍
07/29/2012 +1 days 🔍
07/30/2012 +1 days 🔍
08/08/2012 +9 days 🔍
01/24/2013 +169 days 🔍
01/03/2025 +4362 days 🔍

Sourcesinfo

Vendor: ibm.com

Advisory: aix.software.ibm.com
Researcher: Jakub Wartak
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2012-0723 (🔍)
GCVE (CVE): GCVE-0-2012-0723
GCVE (VulDB): GCVE-100-5872

OVAL: 🔍

X-Force: 74134 - IBM AIX bos.rte.tty and bos.rte.libc denial of service, Medium Risk
SecurityFocus: 54706 - IBM AIX and Virtual I/O Server 'dupmsg' System Call Local Denial of Service Vulnerability
Secunia: 50003 - IBM AIX and Virtual I/O Server "dupmsg" Denial of Service Vulnerability, Less Critical
OSVDB: 84225
SecurityTracker: 1027315 - IBM AIX dupmsg() Bug Lets Local Users Deny Service
Vulnerability Center: 35750 - IBM AIX and Virtual I/O Server \x27dupmsg\x27 Kernel Extension Call Improper Check Allows Local DoS, Medium

Entryinfo

Created: 08/08/2012 13:20
Updated: 01/03/2025 17:57
Changes: 08/08/2012 13:20 (76), 04/15/2017 16:02 (12), 03/27/2021 07:21 (2), 01/03/2025 17:57 (16)
Complete: 🔍
Cache ID: 216:EDF:103

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Might our Artificial Intelligence support you?

Check our Alexa App!