CVE-2021-3052High

CVE-2021-3052 PAN-OS: Reflected Cross-Site Scripting (XSS) in Web Interface

Published
September 8, 2021
Last Modified
September 12, 2021

🔗 CVE IDs covered (1)

CVE-2021-3052 →

📋 Description

A reflected cross-site scripting (XSS) vulnerability in the Palo Alto Network PAN-OS web interface enables an authenticated network-based attacker to mislead another authenticated PAN-OS administrator to click on a specially crafted link that performs arbitrary actions in the PAN-OS web interface as the targeted authenticated administrator.

This issue impacts: PAN-OS 8.1 versions earlier than 8.1.20; PAN-OS 9.0 versions earlier than 9.0.14; PAN-OS 9.1 versions earlier than 9.1.10; PAN-OS 10.0 versions earlier than 10.0.2. This issue does not affect Prisma Access.

🎯 Affected products1

  • PAN-OS

✅ Remediation

This issue is fixed in PAN-OS 9.0.14, PAN-OS 8.1.20, PAN-OS 9.1.10, PAN-OS 10.0.2, PAN-OS 10.1.0, and all later PAN-OS versions. Workarounds and mitigations: Enable signatures for Unique Threat IDs 91573, 91574, 91575, 91576 on traffic destined for the web interface to block attacks against CVE-2021-3052. This issue requires the attacker to have authenticated access to the PAN-OS web interface. You can mitigate the impact of this issue by following best practices for securing the PAN-OS web interface. Please review the Best Practices for Securing Administrative Access in the PAN-OS technical documentation at https://docs.paloaltonetworks.com/best-practices.

🔗 References (1)