PORT STATE SERVICE REASON
53/tcp open domain Microsoft DNS 6.1.7601 (1DB15D39) (Windows Server 2008 R2 SP1)
5353/udp open zeroconf udp-response
53/udp open domain Microsoft DNS 6.1.7601 (1DB15D39) (Windows Server 2008 R2 SP1)
Different DNS Servers
DNS Root Servers: これらはDNS階層の最上部にあり、トップレベルドメインを管理し、下位サーバーが応答しない場合にのみ介入します。インターネット名称と番号割り当て機関（ICANN）がその運営を監督しており、世界中で13のサーバーがあります。
レコード ANY は、DNSサーバーに 返す ように要求し、開示する意志のある すべての エントリ を取得します。
diganyvictim.com@<DNS_IP>
ゾーン転送
この手順は Asynchronous Full Transfer Zone (AXFR) と略されます。
digaxfr@<DNS_IP>#Try zone transfer without domaindigaxfr@<DNS_IP><DOMAIN>#Try zone transfer guessing the domainfierce --domain <DOMAIN> --dns-servers <DNS_IP> #Will try toperform a zone transfer against every authoritative name server and if this doesn'twork, will launch a dictionary attack
さらに詳しい情報
digANY@<DNS_IP><DOMAIN>#Any informationdigA@<DNS_IP><DOMAIN>#Regular DNS requestdigAAAA@<DNS_IP><DOMAIN>#IPv6 DNS requestdigTXT@<DNS_IP><DOMAIN>#InformationdigMX@<DNS_IP><DOMAIN>#Emails relateddigNS@<DNS_IP><DOMAIN>#DNS that resolves that namedig-x192.168.0.2@<DNS_IP>#Reverse lookupdig-x2a00:1450:400c:c06::93@<DNS_IP>#reverse IPv6 lookup#Use [-p PORT] or -6 (to use ivp6 address of dns)
自動化
for sub in $(cat <WORDLIST>);do dig $sub.<DOMAIN> @<DNS_IP> | grep -v ';\|SOA' | sed -r '/^\s*$/d' | grep $sub | tee -a subdomains.txt;done
dnsenum--dnsserver<DNS_IP>--enum-p0-s0-osubdomains.txt-f<WORDLIST><DOMAIN>
nslookupの使用
nslookup> SERVER <IP_DNS>#Select dns server> 127.0.0.1 #Reverse lookup of 127.0.0.1, maybe...><IP_MACHINE>#Reverse lookup of a machine, maybe...
#Perform enumeration actionsnmap-n--script"(default and *dns*) or fcrdns or dns-srv-enum or dns-random-txid or dns-random-srcport"<IP>
DNS - リバースBF
dnsrecon-r127.0.0.0/24-n<IP_DNS>#DNS reverse of all of the addressesdnsrecon-r127.0.1.0/24-n<IP_DNS>#DNS reverse of all of the addressesdnsrecon-r<IP_DNS>/24-n<IP_DNS>#DNS reverse of all of the addressesdnsrecon-dactive.htb-a-n<IP_DNS>#Zone transfer
user@example.com に対する失敗通知がエラーコード #550 5.1.1 RESOLVER.ADR.RecipNotFound; not found と共に返されました。
元のメッセージヘッダーに内部IPアドレスとホスト名が開示されました。
The original message headers were modified for anonymity and now present randomized data:Generating server: server.example.comuser@example.com#550 5.1.1 RESOLVER.ADR.RecipNotFound; not found ##Original message headers:Received: from MAILSERVER01.domain.example.com (192.168.1.1) bymailserver02.domain.example.com (192.168.2.2) with Microsoft SMTP Server (TLS)id 14.3.174.1; Mon, 25 May 2015 14:52:22 -0700Received: from filter.example.com (203.0.113.1) byMAILSERVER01.domain.example.com (192.168.1.1) with Microsoft SMTP Server (TLS)id 14.3.174.1; Mon, 25 May 2015 14:51:22 -0700X-ASG-Debug-ID: 1432576343-0614671716190e0d0001-zOQ9WJReceived: from gateway.domainhost.com (gateway.domainhost.com [198.51.100.37]) byfilter.example.com with ESMTP id xVNPkwaqGgdyH5Ag for user@example.com; Mon,25 May 2015 14:52:13 -0700 (PDT)X-Envelope-From: sender@anotherdomain.orgX-Apparent-Source-IP: 198.51.100.37
Protocol_Name: DNS #Protocol Abbreviation if there is one.
Port_Number: 53 #Comma separated if there is more than one.
Protocol_Description: Domain Name Service #Protocol Abbreviation Spelled out
Entry_1:
Name: Notes
Description: Notes for DNS
Note: |
#These are the commands I run every time I see an open DNS port
dnsrecon -r 127.0.0.0/24 -n {IP} -d {Domain_Name}
dnsrecon -r 127.0.1.0/24 -n {IP} -d {Domain_Name}
dnsrecon -r {Network}{CIDR} -n {IP} -d {Domain_Name}
dig axfr @{IP}
dig axfr {Domain_Name} @{IP}
nslookup
SERVER {IP}
127.0.0.1
{IP}
Domain_Name
exit
https://book.hacktricks.xyz/pentesting/pentesting-dns
Entry_2:
Name: Banner Grab
Description: Grab DNS Banner
Command: dig version.bind CHAOS TXT @DNS
Entry_3:
Name: Nmap Vuln Scan
Description: Scan for Vulnerabilities with Nmap
Command: nmap -n --script "(default and *dns*) or fcrdns or dns-srv-enum or dns-random-txid or dns-random-srcport" {IP}
Entry_4:
Name: Zone Transfer
Description: Three attempts at forcing a zone transfer
Command: dig axfr @{IP} && dix axfr @{IP} {Domain_Name} && fierce --dns-servers {IP} --domain {Domain_Name}
Entry_5:
Name: Active Directory
Description: Eunuerate a DC via DNS
Command: dig -t _gc._{Domain_Name} && dig -t _ldap._{Domain_Name} && dig -t _kerberos._{Domain_Name} && dig -t _kpasswd._{Domain_Name} && nmap --script dns-srv-enum --script-args "dns-srv-enum.domain={Domain_Name}"
Entry_6:
Name: consolesless mfs enumeration
Description: DNS enumeration without the need to run msfconsole
Note: sourced from https://github.com/carlospolop/legion
Command: msfconsole -q -x 'use auxiliary/scanner/dns/dns_amp; set RHOSTS {IP}; set RPORT 53; run; exit' && msfconsole -q -x 'use auxiliary/gather/enum_dns; set RHOSTS {IP}; set RPORT 53; run; exit'
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