Vulnerability Details : CVE-2020-1998
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.
Vulnerability category: BypassGain privilege
Products affected by CVE-2020-1998
- cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*
- cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*
- cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*
- cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*
- cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-1998
0.10%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 42 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-1998
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
6.5
|
MEDIUM | AV:N/AC:L/Au:S/C:P/I:P/A:P |
8.0
|
6.4
|
NIST | |
8.8
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST | |
5.4
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N |
2.8
|
2.5
|
Palo Alto Networks, Inc. |
CWE ids for CVE-2020-1998
-
The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action.Assigned by: psirt@paloaltonetworks.com (Secondary)
-
The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-1998
-
https://security.paloaltonetworks.com/CVE-2020-1998
CVE-2020-1998 PAN-OS: Improper SAML SSO authorization of shared local usersVendor Advisory
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