#VU27898 Improper Authorization in Palo Alto PAN-OS - CVE-2020-1998

Vulnerability identifier: #VU27898

Vulnerability risk: Low

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2020-1998

CWE-ID: CWE-285

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Palo Alto PAN-OS
Operating systems & Components / Operating system

Vendor: Palo Alto Networks, Inc.

Description

The vulnerability allows a remote user to gain elevated privileges on the system.

The vulnerability exists within SAML SSO in PAN-OS that mistakenly uses the permissions of local Linux users instead of the intended SAML permissions of the account when the username is shared for the purposes of SSO authentication. A remote user can escalate privileges on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Palo Alto PAN-OS: 7.1.0 - 7.1.25, 8.1.0 - 8.1.12, 9.0.0 - 9.0.5, 9.1.0

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External links
https://security.paloaltonetworks.com/CVE-2020-1998

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Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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