Authorization bypass via shared local usernames
Published May 13, 2020 · Updated Sep 16, 2024
Improper authorization in PAN-OS allows remote authenticated users to access resources beyond their assigned SAML permissions. During SSO authorization, PAN-OS resolves a shared SAML username against a local Linux account and applies the local account's permissions instead of the SAML account's assigned permissions. A valid SAML-authenticated account whose username duplicates a local Linux username is required, and resulting access is limited to resources permitted to that local account.
Summary
What happened
Improper authorization in PAN-OS allows remote authenticated users to access resources beyond their assigned SAML permissions. During SSO authorization, PAN-OS resolves a shared SAML username against a local Linux account and applies the local account's permissions instead of the SAML account's assigned permissions. A valid SAML-authenticated account whose username duplicates a local Linux username is required, and resulting access is limited to resources permitted to that local account.
The record
- CVE
- CVE-2020-1998
- Published
- May 13, 2020
- Updated
- Sep 16, 2024
- Vendor
- Palo Alto Networks
- Product
- PAN-OS
- Classifications
- CWE-863, CWE-285, T1078
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- May 13, 2020CVE publishedPublication date reported by the CVE source.
- Sep 16, 2024Record updatedLatest update available in the CVE record.
Exploitability
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- Affected versionversion=7.1 <7.1.26 changes=[{"at":"7.1.26","status":"unaffected"}]
- Affected versionversion=8.0.*
- Affected versionversion=8.1 <8.1.13 changes=[{"at":"8.1.13","status":"unaffected"}]
- Affected versionversion=9.0 <9.0.6 changes=[{"at":"9.0.6","status":"unaffected"}]
- Affected versionversion=9.1 <9.1.1 changes=[{"at":"9.1.1","status":"unaffected"}]
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