CVE-2020-5928 : Security Advisory and Response

A CSRF vulnerability in BIG-IP ASM allows for the reuse of CSRF protection tokens.

Understanding CVE-2020-5928

This CVE involves a security issue in the BIG-IP ASM Configuration utility that can lead to CSRF token reuse.

What is CVE-2020-5928?

In versions 15.1.0-15.1.0.4, 15.0.0-15.0.1.3, 14.1.0-14.1.2.6, 13.1.0-13.1.3.4, 12.1.0-12.1.5.1, and 11.6.1-11.6.5.1 of BIG-IP ASM, a CSRF protection token reuse vulnerability exists.

The Impact of CVE-2020-5928

This vulnerability allows malicious actors to reuse CSRF protection tokens, potentially leading to unauthorized actions being performed on affected systems.

Technical Details of CVE-2020-5928

This section provides more in-depth technical information about the CVE.

Vulnerability Description

The vulnerability in BIG-IP ASM Configuration utility allows for the reuse of CSRF protection tokens, posing a security risk.

Affected Systems and Versions

BIG-IP ASM versions 15.1.0-15.1.0.4, 15.0.0-15.0.1.3, 14.1.0-14.1.2.6, 13.1.0-13.1.3.4, 12.1.0-12.1.5.1, and 11.6.1-11.6.5.1

Exploitation Mechanism

The vulnerability can be exploited by reusing CSRF protection tokens to perform unauthorized actions on the affected systems.

Mitigation and Prevention

Protecting systems from this vulnerability is crucial to maintaining security.

Immediate Steps to Take

Apply patches provided by the vendor to address the CSRF token reuse issue.
Monitor system logs for any suspicious activities that may indicate exploitation of the vulnerability.

Long-Term Security Practices

Regularly update and patch software to prevent known vulnerabilities from being exploited.
Implement strong access controls and authentication mechanisms to reduce the risk of unauthorized access.

Patching and Updates

Stay informed about security updates and patches released by the vendor to address vulnerabilities like CSRF token reuse in BIG-IP ASM.