mirror of
https://github.com/AbdullahRizwan101/CTF-Writeups
synced 2024-11-21 19:43:03 +00:00
Add files via upload
This commit is contained in:
ARZ
GitHub
parent
35d86dc3e4
commit
f1cc209c69
1 changed files with 135 additions and 0 deletions
135
TryHackMe/Relevant.md
Normal file
135
TryHackMe/Relevant.md
Normal file
|
|
@ -0,0 +1,135 @@
|
|||
# TryHackMe-Relevant
|
||||
|
||||
## NMAP
|
||||
|
||||
```
|
||||
Nmap scan report for 10.10.179.43
|
||||
Host is up (0.15s latency).
|
||||
Not shown: 995 filtered ports
|
||||
PORT STATE SERVICE VERSION
|
||||
80/tcp open http Microsoft IIS httpd 10.0
|
||||
| http-methods:
|
||||
|_ Potentially risky methods: TRACE
|
||||
|_http-server-header: Microsoft-IIS/10.0
|
||||
|_http-title: IIS Windows Server
|
||||
135/tcp open msrpc Microsoft Windows RPC
|
||||
139/tcp open netbios-ssn Microsoft Windows netbios-ssn
|
||||
445/tcp open microsoft-ds Windows Server 2016 Standard Evaluation 14393 microsoft-ds
|
||||
3389/tcp open ms-wbt-server Microsoft Terminal Services
|
||||
| rdp-ntlm-info:
|
||||
| Target_Name: RELEVANT
|
||||
| NetBIOS_Domain_Name: RELEVANT
|
||||
| NetBIOS_Computer_Name: RELEVANT
|
||||
| DNS_Domain_Name: Relevant
|
||||
| DNS_Computer_Name: Relevant
|
||||
| Product_Version: 10.0.14393
|
||||
|_ System_Time: 2020-11-12T01:17:03+00:00
|
||||
| ssl-cert: Subject: commonName=Relevant
|
||||
| Not valid before: 2020-07-24T23:16:08
|
||||
|_Not valid after: 2021-01-23T23:16:08
|
||||
|_ssl-date: 2020-11-12T01:17:42+00:00; 0s from scanner time.
|
||||
Service Info: OSs: Windows, Windows Server 2008 R2 - 2012; CPE: cpe:/o:microsoft:windows
|
||||
49663/tcp open http Microsoft IIS httpd 10.0
|
||||
| http-methods:
|
||||
|_ Potentially risky methods: TRACE
|
||||
|_http-server-header: Microsoft-IIS/10.0
|
||||
|_http-title: IIS Windows Server
|
||||
49667/tcp open msrpc Microsoft Windows RPC
|
||||
49668/tcp open msrpc Microsoft Windows RPC
|
||||
Service Info: OSs: Windows, Windows Server 2008 R2 - 2012; CPE: cpe:/o:microsoft:windows
|
||||
```
|
||||
|
||||
## PORT 80
|
||||
|
||||
<img src="https://imgur.com/O0DByH0.png"/>
|
||||
|
||||
## PORT 139/445 (SMB)
|
||||
|
||||
```
|
||||
root@kali:~/TryHackMe/Medium/Relevant# smbclient -L \\\\10.10.179.43\\
|
||||
Enter WORKGROUP\root's password:
|
||||
|
||||
Sharename Type Comment
|
||||
--------- ---- -------
|
||||
ADMIN$ Disk Remote Admin
|
||||
C$ Disk Default share
|
||||
IPC$ IPC Remote IPC
|
||||
nt4wrksv Disk
|
||||
SMB1 disabled -- no workgroup available
|
||||
root@kali:~/TryHackMe/Medium/Relevant# smbclient \\\\10.10.179.43\\nt4wrksv
|
||||
Enter WORKGROUP\root's password:
|
||||
Try "help" to get a list of possible commands.
|
||||
smb: \> ls -al
|
||||
NT_STATUS_NO_SUCH_FILE listing \-al
|
||||
smb: \> dir
|
||||
. D 0 Sun Jul 26 02:46:04 2020
|
||||
.. D 0 Sun Jul 26 02:46:04 2020
|
||||
passwords.txt A 98 Sat Jul 25 20:15:33 2020
|
||||
|
||||
7735807 blocks of size 4096. 4937572 blocks available
|
||||
smb: \> get passwords.txt
|
||||
getting file \passwords.txt of size 98 as passwords.txt (0.1 KiloBytes/sec) (average 0.1 KiloBytes/sec)
|
||||
smb: \>
|
||||
```
|
||||
|
||||
We saved the text file on our local machine
|
||||
```
|
||||
[User Passwords - Encoded]
|
||||
Qm9iIC0gIVBAJCRXMHJEITEyMw==
|
||||
QmlsbCAtIEp1dzRubmFNNG40MjA2OTY5NjkhJCQk
|
||||
```
|
||||
Then these look like base64 so we decoded them through cyberchef and found some credentials
|
||||
```
|
||||
Bob - !P@$$W0rD!123
|
||||
Bill - Juw4nnaM4n420696969!$$$
|
||||
```
|
||||
Let's try if they are credentials for smbshares
|
||||
|
||||
<img src="https://imgur.com/cGgbG2E.png"/>
|
||||
|
||||
Through these users we can read `IPC$` share but I failed to do anything on it
|
||||
|
||||
|
||||
## PORT 49663
|
||||
|
||||
Now this may seem similar to PORT 80 but it's not here that `nt4wrksv` share is linked which means that it's writable too and we can upload a reverse shell on it.
|
||||
|
||||
<img src="https://imgur.com/LBrpl2K.png"/>
|
||||
|
||||
<img src="https://imgur.com/bcNoJG4.png"/>
|
||||
|
||||
We can put a `aspx` payload in that share
|
||||
|
||||
<img src="https://imgur.com/c17U68t.png"/>
|
||||
|
||||
<img src="https://imgur.com/zLbRGnt.png"/>
|
||||
|
||||
<img src="https://imgur.com/01bddII.png"/>
|
||||
|
||||
<img src="https://imgur.com/j3urQ8B.png"/>
|
||||
|
||||
Running `getprivs` will tell how we can escalate our privileges.
|
||||
|
||||
<img src="https://imgur.com/w8cfUN4.png"/>
|
||||
|
||||
Here `SeImpersonatePrivilege` is enabled so any process holding this privilege can impersonate(but not create) any token for which it is able to gethandle. You can get a privileged tokenfrom a Windows service making it perform an NTLM authentication against the exploit, then execute a process as SYSTEM.
|
||||
|
||||
<img src="https://imgur.com/asYKYl4.png"/>
|
||||
|
||||
<img src="https://imgur.com/Jc8IRBp.png"/>
|
||||
|
||||
<img src="https://imgur.com/9vRSSIj.png"/>
|
||||
|
||||
But still we are not `NT\AUTHORITY `
|
||||
|
||||
<img src="https://imgur.com/1gRH1QI.png"/>
|
||||
|
||||
Download print spoofer.exe (64 bit version)
|
||||
|
||||
<img src="https://imgur.com/dd7Es1p.png"/>
|
||||
|
||||
Upload where we have write permissions
|
||||
|
||||
<img src="https://imgur.com/YkfDkWG.png"/>
|
||||
|
||||
<img src="https://imgur.com/eMYz83r.png"/>
|
||||
Loading…
Reference in a new issue