Known Exploited Vulnerabilities CVE-2025-54309

CrushFTP contains an unprotected alternate channel vulnerability. When the DMZ proxy feature is not used, mishandles AS2 validation and consequently allows remote attackers to obtain admin access via HTTPS.

Mappings

Capability ID Capability Description Mapping Type ATT&CK ID ATT&CK Name Notes
CVE-2025-54309 CrushFTP Unprotected Alternate Channel Vulnerability exploitation_technique T1068 Exploitation for Privilege Escalation
Comments
Improper validation of AS2 messages in CrushFTP without DMZ proxy enabled were reported to be exploited to bypass authentication and gain administrative access over HTTPS, leading to system compromise, data exfiltration, and lateral movement.
References
CVE-2025-54309 CrushFTP Unprotected Alternate Channel Vulnerability primary_impact T1567 Exfiltration Over Web Service
Comments
Improper validation of AS2 messages in CrushFTP without DMZ proxy enabled were reported to be exploited to bypass authentication and gain administrative access over HTTPS, leading to system compromise, data exfiltration, and lateral movement.
References
CVE-2025-54309 CrushFTP Unprotected Alternate Channel Vulnerability secondary_impact T1021 Remote Services
Comments
Improper validation of AS2 messages in CrushFTP without DMZ proxy enabled were reported to be exploited to bypass authentication and gain administrative access over HTTPS, leading to system compromise, data exfiltration, and lateral movement.
References