App - System
Wednesday 23 December 2020, 14:19 #1
App - System Hardened Binary 2 - ch22 no SETUID?
For some reason the SUID bit is not set on the `ch22` binary. The other binaries have it. Is this intentional? I have a shell, but my setuid is failing for obvious reasons.
app-systeme-ch22@challenge03:~$ ls -la
total 36
dr-xr-x--- 2 app-systeme-ch22-cracked app-systeme-ch22 4096 août 2 2018 .
drwxr-xr-x 51 root root 4096 avril 10 2020 ..
-r-xr-x--- 1 app-systeme-ch22-cracked app-systeme-ch22 6932 avril 29 2011 ch22
-r-------- 1 app-systeme-ch22-cracked app-systeme-ch22-cracked 791 avril 16 2013 ch22.c
-r-------- 1 root root 46 avril 6 2018 ._firewall
-rw-r----- 1 app-systeme-ch22-cracked app-systeme-ch22 231 août 16 2016 .motd
-r-------- 1 app-systeme-ch22-cracked app-systeme-ch22-cracked 17 août 2 2018 .passwd
-rw-r----- 1 root root 458 juil. 20 2018 xinetd.conf
Wednesday 23 December 2020, 14:35 #2
App - System Hardened Binary 2 - ch22 no SETUID?
Hello, this challenge is meant to be done remotely thanks to the TCP host and port given in the instructions. This is why the binary on his self is not setuid, but you will have the correct rights if you exploit the binary through the TCP connection.
