CVE-2020-5890 : What You Need to Know

A vulnerability in F5 BIG-IP and BIG-IQ allows for information disclosure when creating a QKView due to incomplete obfuscation of LDAP server credentials containing whitespace.

Understanding CVE-2020-5890

This CVE affects F5 products BIG-IP and BIG-IQ, potentially exposing sensitive information during the creation of QKViews.

What is CVE-2020-5890?

The vulnerability in F5 products allows LDAP server credentials to be inadequately obfuscated, leading to potential information disclosure.

The Impact of CVE-2020-5890

The vulnerability could result in the exposure of sensitive credentials used for remote authentication of the BIG-IP administrative interface.

Technical Details of CVE-2020-5890

This section provides technical insights into the vulnerability.

Vulnerability Description

When generating a QKView, credentials for binding to LDAP servers are not fully obfuscated if they contain whitespace, potentially exposing sensitive information.

Affected Systems and Versions

BIG-IP versions 15.0.0-15.0.1, 14.1.0-14.1.2.3, 13.1.0-13.1.3.3, 12.1.0-12.1.5.1
BIG-IQ versions 5.2.0-7.1.0

Exploitation Mechanism

The vulnerability occurs during the creation of QKViews, where credentials are not properly obscured, allowing potential attackers to access sensitive information.

Mitigation and Prevention

Protecting systems from CVE-2020-5890 is crucial to prevent information disclosure.

Immediate Steps to Take

Apply patches provided by F5 to address the vulnerability.
Monitor systems for any unauthorized access or unusual activities.

Long-Term Security Practices

Regularly update and patch F5 products to mitigate known vulnerabilities.
Implement strong credential management practices to enhance security.

Patching and Updates

Ensure all affected systems are updated with the latest patches from F5 to mitigate the vulnerability.