CVE-2020-5915 : What You Need to Know

In BIG-IP versions 15.1.0-15.1.0.4, 15.0.0-15.0.1.3, 14.1.0-14.1.2.3, 13.1.0-13.1.3.3, 12.1.0-12.1.5.1, and 11.6.1-11.6.5.1, an undisclosed TMUI page contains a vulnerability allowing stored XSS when BIG-IP systems are set up in a device trust.

Understanding CVE-2020-5915

This CVE involves a Cross-Site Scripting (XSS) vulnerability in BIG-IP devices.

What is CVE-2020-5915?

CVE-2020-5915 is a security vulnerability found in various versions of BIG-IP that enables stored XSS through a specific TMUI page.

The Impact of CVE-2020-5915

The vulnerability could be exploited by attackers to execute malicious scripts in the context of a user's session, potentially leading to unauthorized actions or data theft.

Technical Details of CVE-2020-5915

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

Vulnerability Description

The vulnerability exists in an undisclosed TMUI page within affected BIG-IP versions, allowing for stored XSS attacks.

Affected Systems and Versions

BIG-IP versions 15.1.0-15.1.0.4
BIG-IP versions 15.0.0-15.0.1.3
BIG-IP versions 14.1.0-14.1.2.3
BIG-IP versions 13.1.0-13.1.3.3
BIG-IP versions 12.1.0-12.1.5.1
BIG-IP versions 11.6.1-11.6.5.1

Exploitation Mechanism

The vulnerability can be exploited when BIG-IP systems are configured in a device trust setup, allowing attackers to inject and execute malicious scripts.

Mitigation and Prevention

Protecting systems from CVE-2020-5915 requires immediate actions and long-term security measures.

Immediate Steps to Take

Apply vendor-supplied patches or updates promptly to mitigate the vulnerability.
Monitor network traffic for any signs of exploitation.
Restrict access to the TMUI interface to authorized personnel only.

Long-Term Security Practices

Regularly update and patch all software and firmware to prevent known vulnerabilities.
Conduct security assessments and penetration testing to identify and address potential weaknesses.
Educate users and administrators about the risks of XSS attacks and how to recognize suspicious activities.

Patching and Updates

Ensure that all affected BIG-IP devices are updated with the latest patches provided by the vendor to eliminate the XSS vulnerability.