CVE-2023-45169 : Exploit Details and Defense Strategies
Learn about CVE-2023-45169, a medium-severity vulnerability in IBM AIX 7.2, 7.3, and VIOS 3.1 allowing local users to launch denial-of-service attacks. Find mitigation steps and affected systems here.
A detailed analysis of CVE-2023-45169 focusing on the IBM AIX denial of service vulnerability.
Understanding CVE-2023-45169
In this section, we will delve into the specifics of CVE-2023-45169.
What is CVE-2023-45169?
IBM AIX 7.2, 7.3, and VIOS 3.1 are susceptible to a vulnerability within the pmsvcs kernel extension that could be exploited by a non-privileged local user to trigger a denial-of-service attack. This vulnerability has been identified as IBM X-Force ID: 267967.
The Impact of CVE-2023-45169
The vulnerability poses a medium severity threat with a CVSS v3.1 base score of 6.2. With a low attack complexity and local attack vector, the availability impact is rated as high. Although it does not affect confidentiality or integrity, it can cause denial of service on affected systems.
Technical Details of CVE-2023-45169
Let's explore the technical details surrounding CVE-2023-45169.
Vulnerability Description
The vulnerability stems from improper input validation (CWE-20) in the pmsvcs kernel extension of IBM AIX 7.2, 7.3, and VIOS 3.1, allowing unauthorized users to disrupt system availability through a denial-of-service attack.
Affected Systems and Versions
IBM AIX versions 7.2, 7.3, as well as VIOS version 3.1 are impacted by this vulnerability.
Exploitation Mechanism
By leveraging the vulnerability in the pmsvcs kernel extension, a non-privileged local user can exploit the flaw to initiate a denial-of-service attack on the affected IBM AIX systems.
Mitigation and Prevention
To address CVE-2023-45169 effectively, consider the following mitigation strategies.
Immediate Steps to Take
- Apply patches and updates provided by IBM to remediate the vulnerability promptly.
- Monitor system logs for any suspicious activities or attempts to exploit the vulnerability.
Long-Term Security Practices
- Regularly update and patch IBM AIX systems to ensure protection against known vulnerabilities.
- Implement the principle of least privilege to restrict user access within the system.
Patching and Updates
Stay informed about security bulletins and updates released by IBM for AIX to ensure timely patching and protection against potential threats.