CyberRota Analysis
AI-GeneratedThe multipart/form-data request body parser in ModSecurity versions prior to 3.0.16 is vulnerable, as it improperly handles line breaks in non-file form-field values, potentially allowing malicious payloads to bypass security rules that inspect ARGS or ARGS_POST. This flaw can lead to undetected exploitation of web applications relying on ModSecurity for protection. Organizations using Apache or Nginx with affected versions of ModSecurity should prioritize upgrading to version 3.0.16 to mitigate this risk.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx. Prior to 3.0.16, the multipart/form-data request body parser in libmodsecurity silently removes embedded line breaks from non-file form-field values before exporting them to ARGS and ARGS_POST because src/request_body_processor/multipart.cc overwrites reserved bytes in m_reserve instead of appending the current buffer. This creates a parser differential between ModSecurity and backend applications that preserve line breaks in form fields, allowing rules that inspect ARGS or ARGS_POST to miss payloads whose dangerous syntax depends on a line break. This issue is fixed in version 3.0.16.
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