Palo Alto Networks Panorama PAN-OS < 6.0.1 Firmware Signature Verification Bypass Arbitrary Code Execution

High Nessus Plugin ID 86186


The remote host is affected by a firmware signature bypass vulnerability.


The remote Panorama appliance is running a version of Palo Alto Networks PAN-OS prior to 6.0.1. It is, therefore, affected by a firmware signature bypass vulnerability due to a flaw in signature verification process that allows an attacker to execute arbitrary Python code within an image file before the signature is verified.
Exploitation of this issue requires convincing an administrator to install a file from a malicious source (e.g. social engineering, hosting on a phishing site, or a man-in-the-middle attack on a legitimate download).


Upgrade to Palo Alto Networks PAN-OS version 6.0.1 or later.

See Also

Plugin Details

Severity: High

ID: 86186

File Name: palo_alto_panorama_cve_2015_6531.nasl

Version: $Revision: 1.5 $

Type: combined

Published: 2015/09/28

Modified: 2017/05/30

Dependencies: 72816

Risk Information

Risk Factor: High


Base Score: 7.6

Temporal Score: 6.3

Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:C

Temporal Vector: CVSS2#E:F/RL:OF/RC:ND

Vulnerability Information

CPE: cpe:/o:paloaltonetworks:pan-os

Required KB Items: Host/local_checks_enabled, Host/Palo_Alto/Firewall/Version, Host/Palo_Alto/Firewall/Full_Version

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2014/12/18

Vulnerability Publication Date: 2015/09/15

Reference Information

CVE: CVE-2015-6531

OSVDB: 127526

TRA: TRA-2015-02