EvansFTP (EvansFTP.ocx) Remote Buffer Overflow PoC [+] Application : EvansFTP ActiveX
[+] CompanyName : Evans Programming
[+] Description : Multi-threaded asynchronus Active-X FTP Control
[+] Lib GUID : {DA3C77F4-8701-11D4-908B-00010268221D}
[+] Exploit : Remote BoF (PoC)
[+] Author : Bl@ckbe@rD // Blackbeard-sql{a.t}Hotmail{dot}fr

[+] Object Safety Report :
Report for Clsid: {7E864D3E-3E6A-48F0-88AF-CEAEE322F9FD}
RegKey Safe for Script: Faux
RegKey Safe for Init: Faux
Implements IObjectSafety: Vrai
IDisp Safe: Safe for untrusted: caller,data
IPStorage Safe: Safe for untrusted: caller,data

RegKey Safe for Script: Faux
RegkeySafe for Init: Faux
KillBitSet: Faux


The Proprieties (RemoteAddress,ProxyPrefix,ProxyName,Password,ProxyBypassList,LoginName,CurrentDirectory) suffers from Buffer Overflow when we pass long strings in fact :
1- RemoteAddress suffers from a BoF when we pass a string over 2068
2- ProxyPrefix suffers from a BoF when we pass a string over 1044
3- ProxyName suffers from a BoF when we pass a string over 1044
4- Password suffers from a BoF when we pass a string over 1044
5- ProxyBypassList suffers from a BoF when we pass a string over 1044
6- LoginName suffers from a BoF when we pass a string over 1044
7- CurrentDirectory suffers from a BoF when we pass a string over 1044

DisASM RemoteAddress Crash :
7C809EEC    MOV AL,[EDX]    (KERNEL32.dll)
 
7C809ED4    TEST EDX,EDX
7C809ED6    JE 7C80C858
7C809EDC    LEA EDI,[EDX+EAX-1]
7C809EE0    CMP EDI,EDX
7C809EE2    JB 7C80C858
7C809EE8    AND DWORD PTR [EBP-4],0
7C809EEC    MOV AL,[EDX]      <--- CRASH
 
EBP+8    FEEEFEEE
Stack Dump:
13FC18      A7 F3 01 66 EE FE EE FE 04 00 00 00 02 00 00 00
 




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