Look for unusual ZIP extractions in system logs or the presence of .jsp files in unexpected directories like /OA_HTML/ .
Security researchers often structure this ZIP file to exploit the extraction process:
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: hAX.zip
Analyze a of a "hax.zip" file (e.g., from a specific CTF challenge)?
Help you has been targeted by this exploit? Oracle CVE-2022-21587 Technical Analysis - Zybnev Sergey Look for unusual ZIP extractions in system logs
Ensure Oracle E-Business Suite is patched against CVE-2022-21587 .
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. Help you has been targeted by this exploit
Restrict write permissions on web-accessible directories to prevent the execution of uploaded scripts.