CVE-2019-11542 : Vulnerability Insights and Analysis

A stack buffer overflow vulnerability in Pulse Secure Pulse Connect Secure and Pulse Policy Secure versions allows an authenticated attacker to exploit the admin web interface.

Understanding CVE-2019-11542

This CVE involves a critical vulnerability in Pulse Secure products that could lead to severe consequences if exploited.

What is CVE-2019-11542?

A stack buffer overflow vulnerability exists in various versions of Pulse Secure Pulse Connect Secure and Pulse Policy Secure, enabling an attacker to execute arbitrary code through a specially crafted message.

The Impact of CVE-2019-11542

The vulnerability poses a high risk with significant impacts on confidentiality, integrity, and availability of the affected systems.

Technical Details of CVE-2019-11542

This section delves into the specifics of the vulnerability.

Vulnerability Description

The vulnerability allows an authenticated attacker to trigger a stack buffer overflow by sending a maliciously crafted message via the admin web interface.

Affected Systems and Versions

Pulse Connect Secure 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
Pulse Policy Secure versions 9.0RX before 9.0R3.2, 5.4RX before 5.4R7.1, 5.3RX before 5.3R12.1, 5.2RX before 5.2R12.1, and 5.1RX before 5.1R15.1

Exploitation Mechanism

The vulnerability can be exploited by an authenticated attacker through the admin web interface by sending a specially crafted message.

Mitigation and Prevention

Protecting systems from this vulnerability is crucial to prevent potential exploitation.

Immediate Steps to Take

Apply the necessary patches provided by Pulse Secure promptly.
Monitor network traffic for any suspicious activities.
Restrict access to the admin web interface to authorized personnel only.

Long-Term Security Practices

Regularly update and patch all software and systems to mitigate future vulnerabilities.
Conduct security training for employees to raise awareness of potential threats.

Patching and Updates

Ensure that all affected Pulse Secure products are updated to the latest patched versions to eliminate the vulnerability.