Denial of Service in PAN-OS Management Web Interface (PAN-SA-2018-0008)

Last revised: 07/19/2018


Palo Alto Networks makes use of a 3rd-party component impacted by CVE-2018-8715. This issue has been confirmed to present a risk for denial of service to the PAN-OS Management Web Interface. (Ref # PAN-93089, CVE-2018-8715)

Severity: High

A specially crafted HTTP POST request with an invalid “If-modified" header field may cause a NULL dereference and cause a denial of service condition. This vulnerability can be triggered without login or authentication and could result in a crash of the management service.

Products Affected

PAN-OS 6.1.20 and earlier, PAN-OS 7.1.16 and earlier, PAN-OS 8.0.9 and earlier, and PAN-OS 8.1.0. Global Protect is NOT affected.

Available Updates

PAN-OS 6.1.21 and later, PAN-OS 7.1.17 and later, PAN-OS 8.0.10 and later, and PAN-OS 8.1.1 and later.

Workarounds and Mitigations

This issue affects the web-based management interface of PAN-OS and is strongly mitigated by following best practices for securing the management interface of PAN-OS. Our best practices guidelines reduce the exposure of the management interface to potential attackers. Please review the Best Practices for Securing Administrative Access in the PAN-OS technical documentation, available at: