CVE-2021-29755 : What You Need to Know

IBM QRadar SIEM versions 7.3, 7.4, and 7.5 are impacted by a vulnerability that results in improper certificate validation for certain inter-host communications.

Understanding CVE-2021-29755

This CVE relates to a certificate validation issue in IBM QRadar SIEM versions 7.3, 7.4, and 7.5 that could potentially lead to security risks.

What is CVE-2021-29755?

The vulnerability in IBM QRadar SIEM allows for improper certificate validation within inter-host communications, as identified by IBM X-Force ID: 202015.

The Impact of CVE-2021-29755

With a CVSSv3 base score of 5.9, this vulnerability has a medium severity rating and could result in high confidentiality impact if exploited. The attack complexity is considered high.

Technical Details of CVE-2021-29755

This section delves deeper into the technical aspects of the CVE.

Vulnerability Description

The vulnerability in IBM QRadar SIEM versions 7.3, 7.4, and 7.5 is due to the lack of proper certificate validation for inter-host communications.

Affected Systems and Versions

IBM QRadar SIEM versions affected include 7.3.0, 7.4.0, 7.5.0, 7.3.3.FixPack11, 7.4.3.FixPack5, and 7.5.0.UpdatePack1.

Exploitation Mechanism

The vulnerability could be exploited by malicious actors to intercept sensitive information due to the improper certificate validation process.

Mitigation and Prevention

To secure your systems against CVE-2021-29755, consider the following measures.

Immediate Steps to Take

Apply the official fix provided by IBM for the affected versions of IBM QRadar SIEM.
Monitor network traffic for any suspicious activity or unauthorized access.

Long-Term Security Practices

Regularly update and patch your IBM QRadar SIEM installation to mitigate known vulnerabilities.
Implement secure certificate validation mechanisms in your inter-host communications.

Patching and Updates

Stay informed about security bulletins and updates from IBM related to IBM QRadar SIEM to apply patches promptly and ensure system security.