Authenticated code execution via category image upload
Published Mar 25, 2024 · Updated Aug 13, 2024
Unrestricted file upload in phpMyFAQ 3.2.5 allows remote authenticated users to execute code through a crafted category image. CategoryImage::getFileExtension returns an empty extension for an unrecognized Content-Type, while getFileName concatenates the attacker-controlled lang value into the saved name, enabling a .PHP suffix. Administrative category-editing access is required, and successful exploitation writes a web shell into the web-accessible images directory for command execution.
Summary
What happened
Unrestricted file upload in phpMyFAQ 3.2.5 allows remote authenticated users to execute code through a crafted category image. CategoryImage::getFileExtension returns an empty extension for an unrecognized Content-Type, while getFileName concatenates the attacker-controlled lang value into the saved name, enabling a .PHP suffix. Administrative category-editing access is required, and successful exploitation writes a web shell into the web-accessible images directory for command execution.
The record
- CVE
- CVE-2024-28105
- Published
- Mar 25, 2024
- Updated
- Aug 13, 2024
- Vendor
- Thorsten Rinne
- Product
- phpMyFAQ
- Classifications
- CWE-434, T1505.003
- Attack vector
- network
- Privileges
- admin
Timeline
How it unfolded
- Mar 25, 2024CVE publishedPublication date reported by the CVE source.
- Aug 13, 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?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=3.2.5
- Affected versionversion=3.2.5 <3.2.6
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
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
- Category-image upload web-shell proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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