CVE-2025-54309 — CrushFTP Unprotected Alternate Channel Vulnerability
Description
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.
Required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Notes
https://www.crushftp.com/crush11wiki/Wiki.jsp?page=CompromiseJuly2025 ; https://nvd.nist.gov/vuln/detail/CVE-2025-54309
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