CVE-2020-2040Critical

CVE-2020-2040 PAN-OS: Buffer overflow when Captive Portal or Multi-Factor Authentication (MFA) is enabled

Published
September 9, 2020
Last Modified
September 9, 2020

🔗 CVE IDs covered (1)

CVE-2020-2040 →

📋 Description

A buffer overflow vulnerability in PAN-OS allows an unauthenticated attacker to disrupt system processes and potentially execute arbitrary code with root privileges by sending a malicious request to the Captive Portal or Multi-Factor Authentication interface. This issue impacts: All versions of PAN-OS 8.0; PAN-OS 8.1 versions earlier than PAN-OS 8.1.15; PAN-OS 9.0 versions earlier than PAN-OS 9.0.9; PAN-OS 9.1 versions earlier than PAN-OS 9.1.3. This issue does not impact the GlobalProtect VPN or the PAN-OS management web interfaces.

🎯 Affected products1

  • PAN-OS

✅ Remediation

This issue is fixed in PAN-OS 8.1.15, PAN-OS 9.0.9, PAN-OS 9.1.3, and all later PAN-OS versions. All Prisma Access services are now upgraded to resolve this issue and are no longer vulnerable. PAN-OS 7.1 and 8.0 are end-of-life and are no longer covered by our Product Security Assurance policies. Workarounds and mitigations: Until PAN-OS software is upgraded to a fixed version, enabling signatures in content update version 8317 will block attacks against CVE-2020-2040.

🔗 References (1)