nosgx

Prerequisite

Install gcore (part of gdb).

$ sudo apt-get gdb

Build & Run (In terminal 1)

$ make

Run the program with the following command.

$ ./guess

The exepcted output is

Please guess (8 byte):

Then please leave this terminal 1 as it is, and open another terminal. The reason for this is to ensure the program is running and all its content is in the memory now.

Obtain the memory dump (In terminal 2)

Get pid

$ ps -d | grep guess

Example output: 20873 pts/0 00:00:00 guess

Dump the memory (with root privileges using sudo)

$ sudo gcore pid

Open the dump file

$ vi core.pid

Try to search "PASSWORD" in the file by typing

$ /PASSWORD

Expected Results

Searched and found “PASSWORD” string in the core.pid file