Questions tagged [x86-64]

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Receiving “Got EOF while reading in interactive” after properly executing system(“/bin/sh”) using pwntools

I've followed some tutorials on writing a pwntools-based exploit for the bitterman ELF binary, used in a CTF competition. However, all my attempts fail with the message below, i.e. Got EOF while ...
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377 views

Windbg: How to directly view GS:[0x60]

Win10x64: In Windbg, how may I view a pointer to the PEB by directly using GS:[0x60] (and not by Windbg extensions)? To test, I assembled a program via masm64 that throws an interrupt, clears r8 then ...
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Error: the file can't be loaded by debugger plupin IDA PRO 64 bit

I use IDA PRO 64bits on windows 10 64 bit, I want use it remote debug a file 64bit by linux. When I run linux_serverx64 in linux and connect then i error: the file can't be loaded by debugger plupin ...
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Find memory mapped file with x64dbg

I have 64 bit process I want to debug with x64dbg. There is memory mapped file, I found with help of Process Explorer. Properties windows says: Type: Section Description: A memory mapped file or ...
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1answer
123 views

How to debug a crash in wow64.dll in 32bit process

I have a 32bit application and a few wrapper tools that I use one after another to inject code, hook system dll functions (using the patch-first-bytes-of-the-function-with-jump approach). Also I have ...
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Bufferoverflow Stack

I want to do a buffer overflow exploit in the stack. For this i read in data via the "gets"-function. void ExploitMe() { char buffer[256]; gets(buffer); } I compile this file with gcc test.c -...
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R13 off by 2 bytes. Any help?

in this challenge i have to overwrite RIP register to point to the function "print_flags" which calls "getenv" to get the "FLAGS" variable. I have overwritten RIP register with the address of "...