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nosferatu Windows NTLM/Kerberos Authentication Backdoor How it Works First, the DLL is injected into the lsass.exe process, and will begin hooking authentication WinAPI calls. The targeted functions are: NTLM: NtlmShared!MsvpPasswordValidate Kerberos: cryptdll!CDLocateCSystem Kerberos:...

CVE-2026-11405

The web server binary /bin/httpd in several Tenda firmware versions contains a hidden backdoor authentication mechanism in the login() function. While the system initially uses MD5-based password verification, a secondary path is triggered upon a failed attempt. This path retrieves a plaintext pa...

CVE-2026-11405 Hidden backdoor authentication mechanism in multiple versions of Tenda firmware allows admin access to web management interface

The web server binary /bin/httpd contains a hidden backdoor authentication mechanism in the login function at 004c88b8. - The function contains a normal authentication path using MD5/hash-based password verification prodencode64/PasswordToMd5/checkrandkey. - After normal authentication fails, it...