Unauthenticated file disclosure via skin path traversal
Published Feb 9, 2022 · Updated Aug 4, 2024
Directory traversal in ZZCMS 2021 allows remote attackers to read files via the skin parameter in index.php, bottom.php, and top_index.php. The affected handlers use the untrusted skin value to select filesystem templates, permitting ../ sequences to reach files outside the intended directory. Exploitation requires network access and a way to place a readable template file on the server; the published proof of concept demonstrates disclosure of cookie data.
Summary
What happened
Directory traversal in ZZCMS 2021 allows remote attackers to read files via the skin parameter in index.php, bottom.php, and top_index.php. The affected handlers use the untrusted skin value to select filesystem templates, permitting ../ sequences to reach files outside the intended directory. Exploitation requires network access and a way to place a readable template file on the server; the published proof of concept demonstrates disclosure of cookie data.
The record
- CVE
- CVE-2021-45286
- Published
- Feb 9, 2022
- Updated
- Aug 4, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-22, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Feb 9, 2022CVE 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.
Weakness, pattern, technique
Public exploit references
- ZZCMS2021 directory traversal proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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