5 gitlab admin dexter

There is SecureDocker Project containing ssh files

$ ssh -i id_rsa dexter@10.10.10.216  
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@         WARNING: UNPROTECTED PRIVATE KEY FILE!          @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
Permissions 0644 for 'id_rsa' are too open.
It is required that your private key files are NOT accessible by others.
This private key will be ignored.
Load key "id_rsa": bad permissions
dexter@10.10.10.216: Permission denied (publickey).

$ chmod 600 id_rsa   

┌──(kashz㉿kali)-[~/Desktop/HTB/lab]
└─$ ssh -i id_rsa dexter@10.10.10.216
dexter@laboratory:~$ whoami;id;uname -a
dexter
uid=1000(dexter) gid=1000(dexter) groups=1000(dexter)
Linux laboratory 5.4.0-42-generic #46-Ubuntu SMP Fri Jul 10 00:24:02 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux

SuidEnum

dexter@laboratory:/tmp$ ./suid.py

[~] Custom SUID Binaries (Interesting Stuff)
------------------------------
/usr/local/bin/docker-security
------------------------------