CVE-2025-40538
CriticalSummary
W Serv-U występuje luka w kontroli dostępu, która pozwala złośliwemu użytkownikowi na utworzenie konta administratora systemu oraz wykonanie dowolnego kodu z uprawnieniami konta uprzywilejowanego, wykorzystując uprawnienia administratora domeny lub grupy.
Risk Assessment
Luka ta wymaga uprawnień administracyjnych do jej wykorzystania. W przypadku wdrożeń na systemach Windows, ryzyko oceniane jest jako średnie, ponieważ usługi często działają domyślnie pod kontami serwisowymi o niższych uprawnieniach.
Recommendation
Zaleca się ograniczenie dostępu do kont administracyjnych oraz regularne monitorowanie i audytowanie uprawnień w systemie Serv-U.
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Original NVD description (English source)
A broken access control vulnerability exists in Serv-U which when exploited, gives a malicious actor the ability to create a system admin user and execute arbitrary code as a privileged account via domain admin or group admin privileges. This issue requires administrative privileges to abuse. On Windows deployments, the risk is scored as a medium because services frequently run under less-privileged service accounts by default.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS