Say I have gained RCE on a server which has a firewall blocking all egress traffic:
Linux cmweb6 4.15.0-1040-azure #44-Ubuntu SMP Thu Feb 21 14:24:01 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
But I am unable to write to any directory on the server:
-rw-r--r-- 1 root root 3778 Mar 16 2017 somefile drwxr-xr-x 2 root root 4096 Mar 19 2017 tmp
is there a method I can use to upload a shell to test more privelege escalation techniques?