[FD] Buffer Overflow at password field in Advanced Encryption Package Software

Dear List, Greetings from vishnu (@dH4wk) 1. Vulnerable Product - Advanced Encryption Package - Company http://www.aeppro.com/ 2. Vulnerability Information (A) Buffer OverFlow Impact: Attacker gains administrative access Remotely Exploitable: No Locally Exploitable: Yes 3. Vulnerability Description A 1006 byte causes the overflow. It is due to the inefficient/improper handling of exception. This is an SEH based stack overflow and is exploitable.. 4. Reproduction: It can be reproduced by pasting 1006 "A"s or any characters in the field where the key file is asked during encryption of "*TEXT TO ENCRYPT *" tab.. *Windbg Output* ============================================================== (a34.a38): Access violation - code c0000005 (first chance) First chance exceptions are reported before any exception handling. This exception may be expected and handled. *** ERROR: Module load completed but symbols could not be loaded for image00000000`00400000 image00000000_00400000+0x19c0: 004019c0 f00fc108 lock xadd dword ptr [eax],ecx ds:002b:4141413d=???????? (a34.a38): Access violation - code c0000005 (first chance) First chance exceptions are reported before any exception handling. This exception may be expected and handled. 41414141 ?? ============================================================== Regards, Vishnu Raju.

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