CVE-2019-11538 : Security Advisory and Response
Learn about CVE-2019-11538, a high-severity vulnerability in Pulse Secure Pulse Connect Secure versions allowing unauthorized access to device data. Find mitigation steps and patching details here.
A vulnerability in Pulse Secure Pulse Connect Secure versions could allow an attacker to access data on the affected device.
Understanding CVE-2019-11538
What is CVE-2019-11538?
In versions 9.0RX before 9.0R3.4, 8.3RX before 8.3R7.1, 8.2RX before 8.2R12.1, and 8.1RX before 8.1R15.1 of Pulse Secure Pulse Connect Secure, an NFS issue could potentially enable an attacker to gain access to data in any file on the impacted device.
The Impact of CVE-2019-11538
The vulnerability has a CVSS base score of 7.7, indicating a high severity level with a high impact on confidentiality.
Technical Details of CVE-2019-11538
Vulnerability Description
The issue allows an authorized attacker to access the contents of arbitrary files on the affected device.
Affected Systems and Versions
- Pulse Secure Pulse Connect Secure versions 9.0RX before 9.0R3.4
- Pulse Secure Pulse Connect Secure versions 8.3RX before 8.3R7.1
- Pulse Secure Pulse Connect Secure versions 8.2RX before 8.2R12.1
- Pulse Secure Pulse Connect Secure versions 8.1RX before 8.1R15.1
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Network
- Privileges Required: Low
- User Interaction: None
Mitigation and Prevention
Immediate Steps to Take
- Apply the necessary patches provided by Pulse Secure.
- Monitor network traffic for any suspicious activity.
- Restrict access to vulnerable systems.
Long-Term Security Practices
- Regularly update and patch all software and systems.
- Conduct security training for employees to recognize phishing attempts.
Patching and Updates
- Ensure all Pulse Secure Pulse Connect Secure installations are updated to versions that address the NFS issue.