Improper authorization via shared GPO result cache
Published Apr 18, 2024 · Updated Nov 6, 2025
Improper authorization in SSSD before 2.9.5 allows remote authenticated users to gain or lose resource access through concurrent GPO checks. The AD GPO provider writes each policy file's intermediate allow and deny results to a shared sysdb cache, so parallel requests can overwrite data before a decision reads it. The flaw requires at least two concurrent access-control requests and can incorrectly grant or deny the permissions defined by applicable GPOs.
Summary
What happened
Improper authorization in SSSD before 2.9.5 allows remote authenticated users to gain or lose resource access through concurrent GPO checks. The AD GPO provider writes each policy file's intermediate allow and deny results to a shared sysdb cache, so parallel requests can overwrite data before a decision reads it. The flaw requires at least two concurrent access-control requests and can incorrectly grant or deny the permissions defined by applicable GPOs.
The record
- CVE
- CVE-2023-3758
- Published
- Apr 18, 2024
- Updated
- Nov 6, 2025
- Vendor
- Red Hat
- Product
- Red Hat Enterprise Linux 8
- Classifications
- CWE-285, T1068
- Attack vector
- adjacent
- Privileges
- authenticated
Timeline
How it unfolded
- Apr 18, 2024CVE publishedPublication date reported by the CVE source.
- Nov 6, 2025Record updatedLatest update available in the CVE record.
Exploitability
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What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Public exploit references
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Technologies
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Your stack
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