Authenticated privilege escalation via arbitrary file deletion
Published Aug 3, 2021 · Updated Aug 4, 2024
Path traversal in MetInfo CMS 7.0.0 allows remote authenticated users to delete arbitrary files through the column editor. The indeximg field reaches fileUnlink in /app/system/column/admin/index.class.php as a filesystem deletion path without directory restriction. Exploitation requires an authenticated backend session and column deletion; deleting a chosen server-side file can enable privilege escalation.
Summary
What happened
Path traversal in MetInfo CMS 7.0.0 allows remote authenticated users to delete arbitrary files through the column editor. The indeximg field reaches fileUnlink in /app/system/column/admin/index.class.php as a filesystem deletion path without directory restriction. Exploitation requires an authenticated backend session and column deletion; deleting a chosen server-side file can enable privilege escalation.
The record
- CVE
- CVE-2020-19305
- Published
- Aug 3, 2021
- Updated
- Aug 4, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-22, T1070.004
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Aug 3, 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.
Weakness, pattern, technique
Public exploit references
- MetInfo 7.0.0 arbitrary file-deletion proof of conceptproof of concept · unverified
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Technologies
Your stack
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Your stack
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