3
votes
x64 buffer overflow - tcp shell payload
process 6540 is executing new program: /bin/dash
Error in re-setting breakpoint 1: No symbol table is loaded. Use the "file" command.
That's not an error you need to worry about, it likely ...
- 609
2
votes
Accepted
Why can I inherit handles from WSASocketA and not from socket?
Windows socket() creates a socket with WSA_FLAG_OVERLAPPED flag set and inheritable by default.
Windows WSASocket() allows you to specify WSA_FLAG_OVERLAPPED and WSA_FLAG_NO_HANDLE_INHERIT. If you ...
- 136
1
vote
Accepted
Why this x64 shellcode doesn't work?(segmentation fault)
Your buf variable is a global variable, which most likely is located inside .data section.
This section is not executable by default (it probably has RW permissions). You can check its permissions ...
- 72
1
vote
Can ESP point to a global variable
ESP always points to the top of stack. Do you really understand stack concept? If you overwrite esp with random value, the application can crash.
fldz - Push +0.0 onto the FPU stack.
fnstenv - Store ...
- 71
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