CVE-2018-1802 : Vulnerability Insights and Analysis
Learn about CVE-2018-1802 affecting IBM DB2 for Linux, UNIX, and Windows versions 9.7, 10.1, 10.5, and 11.1. Discover the impact, technical details, and mitigation steps.
IBM DB2 for Linux, UNIX, and Windows versions 9.7, 10.1, 10.5, and 11.1 have a vulnerability that allows a low privilege user to gain full access to the DB2 instance account by loading a malicious shared library.
Understanding CVE-2018-1802
This CVE involves a privilege escalation vulnerability in IBM DB2 for Linux, UNIX, and Windows.
What is CVE-2018-1802?
The binaries of IBM DB2 for Linux, UNIX, and Windows versions 9.7, 10.1, 10.5, and 11.1 have a vulnerability where they load shared libraries from an untrusted location. This allows a low privilege user to gain full access to the DB2 instance account by loading a malicious shared library.
The Impact of CVE-2018-1802
- CVSS Score: 8.4 (High)
- Attack Vector: Local
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: High
- Exploit Code Maturity: Unproven
- This vulnerability has been identified as IBM X-Force ID 149640.
Technical Details of CVE-2018-1802
This section provides more technical insights into the vulnerability.
Vulnerability Description
The vulnerability in IBM DB2 for Linux, UNIX, and Windows versions 9.7, 10.1, 10.5, and 11.1 allows a low privilege user to load a malicious shared library, gaining full access to the DB2 instance account.
Affected Systems and Versions
- Affected Systems: IBM DB2 for Linux, UNIX, and Windows
- Affected Versions: 9.7, 10.1, 10.5, 11.1
Exploitation Mechanism
The vulnerability occurs due to the loading of shared libraries from an untrusted location, enabling a low privilege user to exploit this behavior.
Mitigation and Prevention
Protecting systems from CVE-2018-1802 is crucial to maintaining security.
Immediate Steps to Take
- Apply official fixes provided by IBM to address the vulnerability.
- Monitor IBM's security advisories for updates and patches.
Long-Term Security Practices
- Implement the principle of least privilege to restrict user access.
- Regularly review and update security configurations to prevent similar vulnerabilities.
Patching and Updates
- Regularly update IBM DB2 for Linux, UNIX, and Windows to the latest secure versions to mitigate known vulnerabilities.