Our payload:
The binary prints the user‑supplied name using printf . We can turn this into a by feeding a name that contains format specifiers. The call is: helicon remote crack
| Attribute | Detail | |-----------|--------| | | Authentication Bypass → Remote Code Execution | | CVE Identifier | CVE‑2025‑XXXX (assigned by NIST, pending public disclosure) | | CVSS v3.1 Score | 9.8 (Critical) | | Affected Component | HeliconRemoteService.exe – the Windows service that listens on TCP 5555 | | Root Cause | The server validates the client’s authentication token only after parsing the SessionID field. A malformed SessionID (empty or overly long) triggers an integer overflow that bypasses the token verification routine, causing the server to treat the request as authenticated . | | Exploit Prerequisites | • Network reachability to the Helicon Remote listening port. • Ability to send a custom TCP packet (no prior authentication required). | | Impact | • Full administrative control of the host. • Ability to upload/download arbitrary files, execute commands, and manipulate Windows services. • Potential for lateral movement if the compromised host has trusted relationships. | | Detection | No native logging of the malformed handshake; only generic “connection accepted” events are recorded. | Our payload: The binary prints the user‑supplied name