CVE-2019-11507 : Vulnerability Insights and Analysis
Learn about CVE-2019-11507, a cross-site scripting (XSS) vulnerability in Pulse Secure Pulse Connect Secure versions 8.3.x and 9.0.x. Find out the impact, affected systems, and mitigation steps.
A cross-site scripting (XSS) vulnerability was discovered on the Application Launcher page of Pulse Secure Pulse Connect Secure (PCS) versions 8.3.x prior to 8.3R7.1 and 9.0.x prior to 9.0R3.
Understanding CVE-2019-11507
This CVE involves a high-severity XSS vulnerability in Pulse Secure Pulse Connect Secure (PCS) versions 8.3.x and 9.0.x.
What is CVE-2019-11507?
CVE-2019-11507 is a cross-site scripting (XSS) vulnerability found in the Application Launcher page of Pulse Secure Pulse Connect Secure (PCS) versions 8.3.x before 8.3R7.1 and 9.0.x before 9.0R3.
The Impact of CVE-2019-11507
The impact of this vulnerability is rated as medium severity with a CVSS base score of 5.8. The attack complexity is high, requiring user interaction, but privileges are not needed for exploitation.
Technical Details of CVE-2019-11507
This section provides detailed technical information about the vulnerability.
Vulnerability Description
The XSS vulnerability allows attackers to execute malicious scripts in the context of a user's browser on the affected Pulse Secure PCS versions.
Affected Systems and Versions
- Pulse Secure Pulse Connect Secure (PCS) versions 8.3.x before 8.3R7.1
- Pulse Secure Pulse Connect Secure (PCS) versions 9.0.x before 9.0R3
Exploitation Mechanism
- Attack Complexity: High
- Attack Vector: Network
- User Interaction: Required
- Scope: Changed
- Privileges Required: None
Mitigation and Prevention
Protecting systems from CVE-2019-11507 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update Pulse Secure PCS to versions 8.3R7.1 or 9.0R3 to mitigate the vulnerability.
- Educate users about the risks of XSS attacks and phishing attempts.
Long-Term Security Practices
- Regularly monitor and audit web applications for vulnerabilities.
- Implement Content Security Policy (CSP) to mitigate XSS risks.
- Conduct security training for developers to write secure code.
Patching and Updates
- Apply security patches provided by Pulse Secure promptly to address known vulnerabilities.