| Phase | Recommended Actions | |-------|----------------------| | | • Deploy IDS signatures ( midv056 ). • Enable WAF rule to block application/octet-stream to /api/v1/relay . • Set up file‑integrity monitoring (e.g., Tripwire ) for /etc/midware/ and binary directories. | | Containment | • Temporarily disable the vulnerable endpoint (e.g., systemctl stop midware or block via firewall). • Isolate the host if you observe successful exploitation (network quarantine). | | Eradication | • Apply the patched version. • Remove any malicious files left by the attacker (search for newly created scripts in /tmp , /var/tmp , and user home directories). | | Recovery | • Restore from clean backups if system integrity cannot be verified. • Conduct a full post‑mortem and update your asset inventory to tag the host as “patched”. | | Lessons Learned | • Review your serialization strategy – avoid binary or language‑specific formats unless absolutely necessary. • Implement a secure‑by‑design development lifecycle (code review, fuzz testing of deserialization paths). |
to load the new binary: