Vulnerability · Published May 13, 2020 · Assigned by palo_alto

CVE-2020-1998PAN-OS: Improper SAML SSO authorization of shared local users

Medium 5.4

In plain English

A medium-severity security flaw in PAN-OS from Palo Alto Networks. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 60% of all known vulnerabilities).

Severity (CVSS 3.1)5.4Medium

Exploit odds (30 days)0.9%top 40.4% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

An improper authorization vulnerability 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. This can result in authentication bypass and unintended resource access for the user. This issue affects: PAN-OS 7.1 versions earlier than 7.1.26; PAN-OS 8.1 versions earlier than 8.1.13; PAN-OS 9.0 versions earlier than 9.0.6; PAN-OS 9.1 versions earlier than 9.1.1; All versions of PAN-OS 8.0.

Affected products (as reported)

Vendor	Product	Versions
Palo Alto Networks	PAN-OS	8.0.*8.1 – before 8.1.137.1 – before 7.1.269.0 – before 9.0.69.1 – before 9.1.1

Weakness: CWE-285 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

References

https://security.paloaltonetworks.com/CVE-2020-1998 x_refsource_MISC