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CVE-2020-1998

HIGHCVSS 8.8/10EPSS 0.89%

Last modified

CVE-2020-1998 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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. EPSS estimates a 0.89% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
8.8/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
0.89%

54.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
PaloaltonetworksPan-Os>= 7.1.0, < 7.1.26
PaloaltonetworksPan-Os>= 8.0.0, <= 8.0.20
PaloaltonetworksPan-Os>= 8.1.0, < 8.1.13
PaloaltonetworksPan-Os>= 9.0.0, < 9.0.6
PaloaltonetworksPan-Os>= 9.1.0, < 9.1.1

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is 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.
How severe is CVE-2020-1998?
CVE-2020-1998 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.89% probability of exploitation in the next 30 days.
How do I fix CVE-2020-1998?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-1998?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST