CVE-2019-11540 : What You Need to Know
Learn about CVE-2019-11540, a critical vulnerability in Pulse Secure products allowing remote attackers to perform session hijacking. Find mitigation steps here.
An unauthenticated, remote attacker can conduct a session hijacking attack on Pulse Secure Pulse Connect Secure versions 9.0RX prior to 9.0R3.4 and 8.3RX prior to 8.3R7.1, as well as on Pulse Policy Secure versions 9.0RX prior to 9.0R3.2 and 5.4RX prior to 5.4R7.1.
Understanding CVE-2019-11540
This CVE involves a critical vulnerability in Pulse Secure products that allows for session hijacking by remote attackers.
What is CVE-2019-11540?
CVE-2019-11540 is a security flaw in Pulse Secure Pulse Connect Secure and Pulse Policy Secure versions that enables unauthorized individuals to perform session hijacking attacks.
The Impact of CVE-2019-11540
The vulnerability poses a high risk with significant impacts on confidentiality, integrity, and availability of the affected systems.
Technical Details of CVE-2019-11540
This section provides in-depth technical insights into the CVE.
Vulnerability Description
- An unauthenticated, remote attacker can exploit the flaw to conduct session hijacking attacks.
Affected Systems and Versions
- Pulse Secure Pulse Connect Secure versions 9.0RX before 9.0R3.4 and 8.3RX before 8.3R7.1
- Pulse Policy Secure versions 9.0RX before 9.0R3.2 and 5.4RX before 5.4R7.1
Exploitation Mechanism
- Attack Complexity: High
- Attack Vector: Network
- Privileges Required: None
- User Interaction: Required
- Scope: Changed
- Availability Impact: High
- Confidentiality Impact: High
- Integrity Impact: High
Mitigation and Prevention
Protecting systems from CVE-2019-11540 is crucial to maintaining security.
Immediate Steps to Take
- Apply vendor-provided patches and updates promptly.
- Monitor network traffic for any suspicious activity.
- Implement strong access controls and authentication mechanisms.
Long-Term Security Practices
- Regularly update and patch all software and systems.
- Conduct security audits and assessments periodically.
- Educate users on best security practices and awareness.
Patching and Updates
- Ensure all Pulse Secure products are updated to versions that address the vulnerability.