CVE-2020-4887 : Vulnerability Insights and Analysis
Learn about CVE-2020-4887 affecting IBM AIX 7.1, 7.2, and AIX VIOS 3.1. This vulnerability allows local users to create arbitrary files. Read for impact and mitigation.
IBM AIX 7.1, 7.2, and AIX VIOS 3.1 have a vulnerability that could allow a local user to create arbitrary files. The CVSS base score is 6.2.
Understanding CVE-2020-4887
IBM AIX and AIX VIOS are affected by a vulnerability that enables a local user to exploit the gencore user command.
What is CVE-2020-4887?
The vulnerability in IBM AIX 7.1, 7.2, and AIX VIOS 3.1 allows a local user to create arbitrary files in any directory by exploiting the gencore user command.
The Impact of CVE-2020-4887
- CVSS Base Score: 6.2 (Medium)
- Attack Vector: Local
- Integrity Impact: High
- Exploit Code Maturity: Unproven
- Remediation Level: Official Fix
Technical Details of CVE-2020-4887
Vulnerability Description
The vulnerability in IBM AIX and AIX VIOS enables a local user to create arbitrary files using the gencore user command.
Affected Systems and Versions
- IBM AIX 7.1
- IBM AIX 7.2
- IBM AIX VIOS 3.1
Exploitation Mechanism
The vulnerability can be exploited by a local user through the gencore user command.
Mitigation and Prevention
Immediate Steps to Take
- Apply official fixes provided by IBM.
- Monitor for any unauthorized file creation.
Long-Term Security Practices
- Regularly update and patch IBM AIX and AIX VIOS systems.
- Implement the principle of least privilege to restrict user capabilities.
Patching and Updates
Ensure that systems are updated with the latest security patches from IBM.