Unauthorized object modification via first-attribute-only write check
Published Jul 13, 2021 · Updated Aug 3, 2024
Incorrect authorization in Siemens Mendix before 7.23.22, 8.18.7, or 9.3.0 allows remote authenticated users to alter object attributes. The object-write access logic checks permission for the first attribute but fails to enforce separate checks for additional attributes. A low-privileged account must have write permission to the first attribute; exploitation can then modify otherwise protected data in that object.
Summary
What happened
Incorrect authorization in Siemens Mendix before 7.23.22, 8.18.7, or 9.3.0 allows remote authenticated users to alter object attributes. The object-write access logic checks permission for the first attribute but fails to enforce separate checks for additional attributes. A low-privileged account must have write permission to the first attribute; exploitation can then modify otherwise protected data in that object.
The record
- CVE
- CVE-2021-33718
- Published
- Jul 13, 2021
- Updated
- Aug 3, 2024
- Vendor
- Siemens
- Product
- Mendix
- Classifications
- CWE-863, T1565
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 13, 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?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=All versions < V7.23.22
- Affected versionversion=All versions < V8.18.7
- Affected versionversion=All versions < V9.3.0
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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Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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