CVE-2018-20810 : What You Need to Know

This CVE involves inadequate encryption of session data during cluster synchronization in Pulse Secure Pulse Connect Secure (PCS) and Pulse Policy Secure (PPS) versions prior to specific releases.

Understanding CVE-2018-20810

This vulnerability impacts the security of data transmission between cluster nodes in certain versions of Pulse Secure products.

What is CVE-2018-20810?

The encryption of session data between cluster nodes is insufficient in Pulse Secure PCS 8.3RX before 8.3R2 and PPS 5.4RX before 5.4R2 during cluster synchronization. Not affecting PCS 8.1RX, PPS 5.2RX, or standalone devices.

The Impact of CVE-2018-20810

This vulnerability could lead to unauthorized access to sensitive data transmitted between cluster nodes, potentially compromising the confidentiality and integrity of the information.

Technical Details of CVE-2018-20810

This section provides more in-depth technical insights into the CVE.

Vulnerability Description

The encryption weakness in cluster synchronization of Pulse Secure PCS and PPS versions exposes session data to potential interception by malicious actors.

Affected Systems and Versions

Affected: Pulse Secure PCS 8.3RX (before 8.3R2) and PPS 5.4RX (before 5.4R2)
Not Affected: PCS 8.1RX, PPS 5.2RX, or standalone devices

Exploitation Mechanism

Attackers could exploit this vulnerability by intercepting and decrypting inadequately encrypted session data during cluster synchronization, potentially gaining unauthorized access to sensitive information.

Mitigation and Prevention

Protecting systems from CVE-2018-20810 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Pulse Secure PCS and PPS to versions 8.3R2 and 5.4R2, respectively, to address the encryption issue.
Monitor network traffic for any signs of unauthorized access or data interception.

Long-Term Security Practices

Implement strong encryption protocols for data transmission within cluster environments.
Regularly audit and update security configurations to prevent similar vulnerabilities.

Patching and Updates

Apply security patches provided by Pulse Secure promptly to ensure the encryption of session data during cluster synchronization is robust and secure.