Attackers use a specially crafted ZIP file (often named hax.zip in security write-ups) to bypass directory restrictions. Mechanism: The system accepts a uuencoded file.
The ZIP contains files with paths like ../../../../path/to/shell.jsp to escape the intended upload folder.
Restrict write permissions on web-accessible directories to prevent the execution of uploaded scripts. hAX.zip
The ZIP itself is often wrapped in uuencode format to satisfy specific backend processing requirements before it is unzipped. 🛡️ Mitigation and Detection If you are analyzing this file or its behavior on a server:
Ensure Oracle E-Business Suite is patched against CVE-2022-21587 . Attackers use a specially crafted ZIP file (often named hax
Help you has been targeted by this exploit? Oracle CVE-2022-21587 Technical Analysis - Zybnev Sergey
Once decoded, the resulting ZIP file is extracted by the server. Help you has been targeted by this exploit
The vulnerability exists in the BneMultipartRequest class, which handles file uploads for the Oracle Web Applications Desktop Integrator (Web ADI). Arbitrary File Upload leading to RCE.