Arbitrary file deletion via unchecked template path
Published Jul 26, 2023 · Updated Oct 23, 2024
Path traversal in emlog 2.1.9 allows remote authenticated users to delete arbitrary server files through the template administration endpoint. In admin/template.php, the tpl parameter passes through a preg_replace allowlist that leaves nonmatching traversal strings unchanged, then reaches recursive emDeleteFile without a path-containment check. An administrator session and CSRF token are required; deletion can escape the templates directory and remove the site's configuration or web root.
Summary
What happened
Path traversal in emlog 2.1.9 allows remote authenticated users to delete arbitrary server files through the template administration endpoint. In admin/template.php, the tpl parameter passes through a preg_replace allowlist that leaves nonmatching traversal strings unchanged, then reaches recursive emDeleteFile without a path-containment check. An administrator session and CSRF token are required; deletion can escape the templates directory and remove the site's configuration or web root.
The record
- CVE
- CVE-2023-37049
- Published
- Jul 26, 2023
- Updated
- Oct 23, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-22, CWE-862, T1485
- Attack vector
- network
- Privileges
- admin
Timeline
How it unfolded
- Jul 26, 2023CVE publishedPublication date reported by the CVE source.
- Oct 23, 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.
Published CVSS scores
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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
- Administrator template-deletion traversal requestproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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