Remote command execution in Palo Alto PAN-OS

1) OS Command Injection

EUVDB-ID: #VU46556

Risk: Medium

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-2037

CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Exploit availability: No

Description

The vulnerability allows a remote user to execute arbitrary shell commands on the target system.

The vulnerability exists due to improper input validation in the PAN-OS management web interface. A remote privileged user can pass specially crafted data to the application and execute arbitrary OS commands on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Palo Alto PAN-OS: 8.1 - 9.2.0

CPE2.3

• cpe:2.3:o:palo_alto_networks:pan-os:8.1:*:*:*:*:*:*:*
• cpe:2.3:o:palo_alto_networks:pan-os:8.1.0:*:*:*:*:*:*:*
• cpe:2.3:o:palo_alto_networks:pan-os:8.1.1:*:*:*:*:*:*:*
• cpe:2.3:o:palo_alto_networks:pan-os:8.1.2:*:*:*:*:*:*:*
• cpe:2.3:o:palo_alto_networks:pan-os:8.1.3:*:*:*:*:*:*:*
• cpe:2.3:o:palo_alto_networks:pan-os:8.1.4:*:*:*:*:*:*:*
• cpe:2.3:o:palo_alto_networks:pan-os:8.1.4-h2:*:*:*:*:*:*:*
• cpe:2.3:o:palo_alto_networks:pan-os:8.1.5:*:*:*:*:*:*:*
• cpe:2.3:o:palo_alto_networks:pan-os:8.1.6:*:*:*:*:*:*:*
• cpe:2.3:o:palo_alto_networks:pan-os:8.1.6-h2:*:*:*:*:*:*:*

External links

https://security.paloaltonetworks.com/CVE-2020-2037

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

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