Administrator escalation via trusted profile update fields
Published Jun 21, 2021 · Updated Aug 4, 2024
Incorrect authorization in White Shark System 1.3.2 allows remote authenticated users to gain administrator privileges through account editing. default_user_edit.php checks the UID used to display a profile, but its update path trusts separate POST ID and tk_user_rank fields. A valid low-privilege session is required; setting tk_user_rank to 5 grants administrator access, while changing ID permits modification of another user's profile.
Summary
What happened
Incorrect authorization in White Shark System 1.3.2 allows remote authenticated users to gain administrator privileges through account editing. default_user_edit.php checks the UID used to display a profile, but its update path trusts separate POST ID and tk_user_rank fields. A valid low-privilege session is required; setting tk_user_rank to 5 grants administrator access, while changing ID permits modification of another user's profile.
The record
- CVE
- CVE-2020-20471
- Published
- Jun 21, 2021
- Updated
- Aug 4, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-863, T1068
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 21, 2021CVE publishedPublication date reported by the CVE source.
- Aug 4, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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What is affected?
Affected products and versions are unavailable in this record.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- White Shark System unauthorized-access proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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