Remote code execution in PAN-OS on PA-7000 Series

1) Improper restriction of communication channel to intended endpoints

EUVDB-ID: #VU23777

Risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-17440

CWE-ID: CWE-923 - Improper Restriction of Communication Channel to Intended Endpoints

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to improper restriction of communications to Log Forwarding Card (LFC) on PA-7000 Series devices with second-generation Switch Management Card (SMC). A remote attacker with network access to the LFC can gain perform a spoofing attack and gain root privileges on the device.

Mitigation

The vulnerability affects PAn-OS on PA-7080 and PA-7050 devices with an LFC installed and configured.

To resolve the vulnerability, update PAN-OS to version 9.0.5-h3.

Vulnerable software versions

Palo Alto PAN-OS: 9.0.0 - 9.0.5

External links

http://securityadvisories.paloaltonetworks.com/Home/Detail/203

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.