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Hack The Box: SolidState

SolidState -

Target Enumeration:

OS: Linux


User: 914d0a4ebc177889b5b89a23f556fd75

Root: b4c9723a28899b1c45db281d99cc87c9

Ports / Services / Software Versions Running

22/tcp  open ssh     OpenSSH 7.4p1 Debian 10+deb9u1 (protocol 2.0)

25/tcp  open smtp    JAMES smtpd 2.3.2

80/tcp  open http    Apache httpd 2.4.25 ((Debian))

110/tcp open  pop3 JAMES pop3d 2.3.2

119/tcp open  nntp JAMES nntpd (posting ok)

4555/tcp open  james-admin JAMES Remote Admin 2.3.2

Vulnerability Exploited:

Apache James Server 2.3.2 - Remote Command Execution


Privilege Escalation:

Root cronjob running /opt/tmp.py which is world writable

Exploiting the host:


Nothing exploitable yet so run a deep scan with nmap on Bank as it is faster:

New port 4555/tcp has been found running we find the following default credentials

Online guides state to login with telnet:

Searchsploit gives us an exploit to try

Modify the exploit

Execute it

Now you need to login as a user via ssh to spawn a shell.

After checking all of the users emails mindy has some ssh creds

Now login to mindys mail account

And you have a ssh password so start a nc listener on port 443 and login to ssh

Now you have a low privileged user as mindy

Download your tools and run

Looks like a root script which clears out tmp every few minutes.

Echo the following into the bottom of the file and set up a nc listener on port 444

After a few minutes you will receive a root shell to collect your flags:

Add persistence if needed: