CVE-2021-3054High

CVE-2021-3054 PAN-OS: Unsigned Code Execution During Plugin Installation Race Condition Vulnerability

Published
September 8, 2021
Last Modified
September 12, 2021

🔗 CVE IDs covered (1)

CVE-2021-3054 →

📋 Description

A time-of-check to time-of-use (TOCTOU) race condition vulnerability in the Palo Alto Networks PAN-OS web interface enables an authenticated administrator with permission to upload plugins to execute arbitrary code with root user privileges.

This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.20; PAN-OS 9.0 versions earlier than PAN-OS 9.0.14; PAN-OS 9.1 versions earlier than PAN-OS 9.1.11; PAN-OS 10.0 versions earlier than PAN-OS 10.0.7; PAN-OS 10.1 versions earlier than PAN-OS 10.1.2. This issue does not affect Prisma Access.

🎯 Affected products1

  • PAN-OS

✅ Remediation

This issue is fixed in PAN-OS 8.1.20, PAN-OS 9.0.14, PAN-OS 9.1.11, PAN-OS 10.0.7, PAN-OS 10.1.2, and all later PAN-OS versions. Workarounds and mitigations: Enable signatures for Unique Threat ID 91572 on traffic processed by the firewall to block attacks against CVE-2021-3054. 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)