Remote commands execution in PAN-OS

1) OS Command Injection

EUVDB-ID: #VU58108

Risk: Medium

CVSSv4.0: 5.2 [CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-3059

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 attacker to execute arbitrary shell commands on the target system.

The vulnerability exists in the Palo Alto Networks PAN-OS management interface when performing dynamic updates. A remote attacker with ability to perform MitM (man-in-the-middle) attack can execute arbitrary OS commands on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Palo Alto PAN-OS: 8.1 - 10.1.2

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-2021-3059

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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