CVE-2021-20391 Explained : Impact and Mitigation
Learn about CVE-2021-20391 affecting IBM QRadar User Behavior Analytics versions 1.0.0 to 4.1.0. Understand the impact, technical details, and mitigation steps for this medium severity vulnerability.
IBM QRadar User Behavior Analytics versions 1.0.0 through 4.1.0 by IBM are affected by a vulnerability that allows local web pages to be read by unauthorized users on the system.
Understanding CVE-2021-20391
This CVE record was published on May 13, 2021, with a base score of 4, indicating a medium severity level.
What is CVE-2021-20391?
The vulnerability in IBM QRadar SIEM allows locally stored web pages to be accessed by other users on the system, compromising confidentiality.
The Impact of CVE-2021-20391
With a CVSS v3.0 base score of 4, this vulnerability poses a medium risk to affected systems, potentially leading to unauthorized access to sensitive information.
Technical Details of CVE-2021-20391
This vulnerability has a base severity level of 'MEDIUM' with low attack complexity and requires local user interaction to be exploited.
Vulnerability Description
IBM QRadar User Behavior Analytics versions 1.0.0 through 4.1.0 allow web pages to be stored locally and accessed by unauthorized users.
Affected Systems and Versions
The affected product is 'QRadar SIEM' by IBM, with versions 1.0.0 and 4.1.1 confirmed to be impacted.
Exploitation Mechanism
The vulnerability requires a low level of attack complexity and local access, making it easier for unauthorized users to exploit.
Mitigation and Prevention
After understanding the impact and technical details of CVE-2021-20391, it is crucial to take immediate actions to mitigate the risk and prevent further exploitation.
Immediate Steps to Take
Users are advised to apply official fixes provided by IBM to address this vulnerability and prevent unauthorized access to locally stored web pages.
Long-Term Security Practices
Implementing regular security updates and maintaining access control mechanisms can help reduce the risk of similar vulnerabilities in the future.
Patching and Updates
IBM users should stay informed about security bulletins and update their systems promptly to ensure protection against known vulnerabilities.