CVE-2021-38931 Explained : Impact and Mitigation
Learn about CVE-2021-38931 affecting IBM Db2 versions 11.1 and 11.5. Understand the impact, technical details, and mitigation steps for this information disclosure vulnerability.
IBM Db2 for Linux, UNIX, and Windows versions 11.1 and 11.5 are vulnerable to an information disclosure issue due to connected users gaining unauthorized indirect read access to specific tables. This vulnerability can have a significant impact on confidentiality.
Understanding CVE-2021-38931
This section will provide insights into the nature and impact of the CVE-2021-38931 vulnerability.
What is CVE-2021-38931?
IBM Db2 for Linux, UNIX, and Windows 11.1 and 11.5 is susceptible to an information disclosure flaw, allowing connected users to access tables beyond their authorization.
The Impact of CVE-2021-38931
The vulnerability poses a medium threat with a CVSS base score of 6.5 and a high confidentiality impact. Although the exploit code maturity is unproven, the potential breach severity remains medium.
Technical Details of CVE-2021-38931
In this section, we will delve deeper into the technical aspects of CVE-2021-38931.
Vulnerability Description
The vulnerability stems from indirect read access by authorized users to specific tables, leading to unauthorized information disclosure.
Affected Systems and Versions
IBM Db2 for Linux, UNIX, and Windows versions 11.1 and 11.5 are confirmed to be affected by this vulnerability.
Exploitation Mechanism
The exploit involves connected users leveraging indirect access to tables they lack authorization for, potentially accessing sensitive information.
Mitigation and Prevention
This section provides guidance on mitigating the risks associated with CVE-2021-38931.
Immediate Steps to Take
Ensure restricted table access for authorized users only, review user permissions, and monitor table access activities to detect anomalies.
Long-Term Security Practices
Regularly update and patch IBM Db2 versions, conduct security audits, educate users on secure data handling, and implement proactive security measures.
Patching and Updates
IBM has released an official fix for this vulnerability. Ensure all systems running affected versions are promptly updated with the latest security patches.