Horizontal privilege escalation via ticket owner selection
Published Mar 8, 2021 · Updated Aug 3, 2024
Horizontal privilege escalation in GLPI before 9.5.4 allows remote authenticated users to create tickets for another user through the self-service interface. The self-service ticket creation handler accepts a caller-supplied user identity without enforcing delegatee authorization when delegatee systems are disabled. A low-privilege self-service account is required, and the consequence is unauthorized ticket creation on behalf of another user rather than administrative control.
Summary
What happened
Horizontal privilege escalation in GLPI before 9.5.4 allows remote authenticated users to create tickets for another user through the self-service interface. The self-service ticket creation handler accepts a caller-supplied user identity without enforcing delegatee authorization when delegatee systems are disabled. A low-privilege self-service account is required, and the consequence is unauthorized ticket creation on behalf of another user rather than administrative control.
The record
- CVE
- CVE-2021-21326
- Published
- Mar 8, 2021
- Updated
- Aug 3, 2024
- Vendor
- GLPI Project
- Product
- GLPI
- Classifications
- CWE-862
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Mar 8, 2021CVE publishedPublication date reported by the CVE source.
- Aug 3, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=< 9.5.4
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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