Authenticated arbitrary file deletion via path traversal
Published Oct 12, 2021 · Updated Aug 4, 2024
Path traversal in WuzhiCMS 4.0.1 and 4.1.0 allows remote authenticated users to delete arbitrary files through the attachment admin endpoint. The del() method appends a user-controlled URL path to ATTACHMENT_ROOT without rejecting ../ traversal before calling my_unlink(). The published exploit requires access to the management interface and can remove files outside the attachment directory.
Summary
What happened
Path traversal in WuzhiCMS 4.0.1 and 4.1.0 allows remote authenticated users to delete arbitrary files through the attachment admin endpoint. The del() method appends a user-controlled URL path to ATTACHMENT_ROOT without rejecting ../ traversal before calling my_unlink(). The published exploit requires access to the management interface and can remove files outside the attachment directory.
The record
- CVE
- CVE-2020-28145
- Published
- Oct 12, 2021
- Updated
- Aug 4, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-668, T1485
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Oct 12, 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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Is a vulnerable build present?
What conditions does exploitation require?
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.
Public exploit references
- WuzhiCMS attachment deletion path-traversal proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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