Collaborate Disseminate
Today I wanted to start what I plan to be a small series of blog posts about LD_PRELOAD. LD_PRELOAD is related to Linux based systems and revolves around the loader system and how shared object libraries resolve linker symbols when loading a dynami… Continue reading LD_PRELOAD – Introduction
I have started working with winpcap, and i got a funny situation with tcp/udp ports.
I wrote a packet forwarder, that sniff on interface and forward packets from specified ports. I do not open the ports because i sniff directly from interf… Continue reading Open TCP/UDP with no socket [closed]
I have started working with winpcap, and i got a funny situation with tcp/udp ports.
I wrote a packet forwarder, that sniff on interface and forward packets from specified ports. I do not open the ports because i sniff directly from interf… Continue reading Open TCP/UDP with no socket [closed]
I have Codeblocks C compiler installed on my system. I am able to compile c/c++ files using gcc.
But Fortify Source Code Review Tool is not detecting the c files or the compiled files of c code for scanning.
It is saying "No Valid F… Continue reading Source Code Scanning [closed]
Let’s say we have an elf a and a textfile a.txt in the same directory.
The a elf is a program, that is remotely accessible/executable.
In addition a contains the instruction fgets(buf,len,stdin); and a remote attacker manages to get full c… Continue reading Generate C File Stream Object on remote machine without fopen()
My high school course gave me this code:
void write_log_entry(Log *log) {
char *cmd =calloc(sizeof(char), 255);
sprintf(cmd, "echo ‘%s accessed %s on the %s (%zu)’ >> %s ", log->user_name, FILENAME, log->time, COU… Continue reading Difference between a heap buffer overflow and a buffer overflow and how to fix it
I am learning about stack overflows and its exploitation , but during my journey i’m stuck!
I am trying to generate shellcode for a call instruction, but it seems that same call instructon to the system() function generates different machi… Continue reading Why the same call instruction in assembly generates different machine code? [closed]
I want to inject meterpreter shellcode in a c++ program.
When I create .exe file in msfvenom, I try it in my virtual machine (Windows 7) and it works well.
But when I create shellcode and inject it into a c++ file, the program compiles suc… Continue reading Can’t inject meterpreter shellcode in c++ code
The spreadsheet-centric database and no-code platform Airtable today announced that it has raised a $185 million Series D funding round, putting the company at a $2.585 billion post-money valuation. Thrive Capital led the round, with additional funding by existing investors Benchmark, Coatue, Caffeinated Capital and CRV, as well as new investor D1 Capital. With this, […] Continue reading Airtable raises $185M and launches new low-code and automation features
I’m trying to stack overflow of one C program. But I’m confused by encoding or decoding algorithms.
I used ollydbg to observe registers. I tried entering "a" 28 times. And it should insert the last "a" in the EIP regist… Continue reading How a can be decoded as 61 and b as 62…? [closed]