Authenticated code execution via unrestricted template creation
Published Oct 13, 2024 · Updated Oct 15, 2024
Arbitrary file creation in UsualTool UTCMS V9 allows remote authenticated users to execute PHP code through a crafted template. The template_creat.php handler accepts page as the filename and content as file contents without filtering either value, then exposes the created file through normal routing. Access to the administrative template-creation page is required; a PHP-suffixed template can become a remotely reachable web shell.
Summary
What happened
Arbitrary file creation in UsualTool UTCMS V9 allows remote authenticated users to execute PHP code through a crafted template. The template_creat.php handler accepts page as the filename and content as file contents without filtering either value, then exposes the created file through normal routing. Access to the administrative template-creation page is required; a PHP-suffixed template can become a remotely reachable web shell.
The record
- CVE
- CVE-2024-9917
- Published
- Oct 13, 2024
- Updated
- Oct 15, 2024
- Vendor
- UsualTool
- Product
- UTCMS
- Classifications
- CWE-502, T1505.003
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Oct 13, 2024CVE publishedPublication date reported by the CVE source.
- Oct 15, 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?
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- Affected versionversion=v9
- Affected versionversion=V9
What conditions does exploitation require?
What is affected?
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
- UTCMS V9 template creation web-shell proofproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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