Domain Information

SSL Certificate

  1. crt.sh - Website to view SSL Certificates

Output crt.sh in JSON from terminal
z3tssu@htb[/htb]$ curl -s https://crt.sh/\?q\=inlanefreight.com\&output\=json | jq .

[
  {
    "issuer_ca_id": 23451835427,
    "issuer_name": "C=US, O=Let's Encrypt, CN=R3",
    "common_name": "matomo.inlanefreight.com",
    "name_value": "matomo.inlanefreight.com",
    "id": 50815783237226155,
    "entry_timestamp": "2021-08-21T06:00:17.173",
    "not_before": "2021-08-21T05:00:16",
    "not_after": "2021-11-19T05:00:15",
    "serial_number": "03abe9017d6de5eda90"
  },
  {
    "issuer_ca_id": 6864563267,
    "issuer_name": "C=US, O=Let's Encrypt, CN=R3",
    "common_name": "matomo.inlanefreight.com",
    "name_value": "matomo.inlanefreight.com",
    "id": 5081529377,
    "entry_timestamp": "2021-08-21T06:00:16.932",
    "not_before": "2021-08-21T05:00:16",
    "not_after": "2021-11-19T05:00:15",
    "serial_number": "03abe90104e271c98a90"
  },
  {
    "issuer_ca_id": 113123452,
    "issuer_name": "C=US, O=Let's Encrypt, CN=R3",
    "common_name": "smartfactory.inlanefreight.com",
    "name_value": "smartfactory.inlanefreight.com",
    "id": 4941235512141012357,
    "entry_timestamp": "2021-07-27T00:32:48.071",
    "not_before": "2021-07-26T23:32:47",
    "not_after": "2021-10-24T23:32:45",
    "serial_number": "044bac5fcc4d59329ecbbe9043dd9d5d0878"
  },
  { ... SNIP ...
JSON crt.sh | Filter them by unique subdomains
z3tssu@htb[/htb]$ curl -s https://crt.sh/\?q\=inlanefreight.com\&output\=json | jq . | grep name | cut -d":" -f2 | grep -v "CN=" | cut -d'"' -f2 | awk '{gsub(/\\n/,"\n");}1;' | sort -u

account.ttn.inlanefreight.com
blog.inlanefreight.com
bots.inlanefreight.com
console.ttn.inlanefreight.com
ct.inlanefreight.com
data.ttn.inlanefreight.com
*.inlanefreight.com
inlanefreight.com
integrations.ttn.inlanefreight.com
iot.inlanefreight.com
mails.inlanefreight.com
marina.inlanefreight.com
marina-live.inlanefreight.com
matomo.inlanefreight.com
next.inlanefreight.com
noc.ttn.inlanefreight.com
preview.inlanefreight.com
shop.inlanefreight.com
smartfactory.inlanefreight.com
ttn.inlanefreight.com
vx.inlanefreight.com
www.inlanefreight.com
Filter company hosted subdomains
z3tssu@htb[/htb]$ for i in $(cat subdomainlist);do host $i | grep "has address" | grep inlanefreight.com | cut -d" " -f1,4;done

blog.inlanefreight.com 10.129.24.93
inlanefreight.com 10.129.27.33
matomo.inlanefreight.com 10.129.127.22
www.inlanefreight.com 10.129.127.33
s3-website-us-west-2.amazonaws.com 10.129.95.250
Shodan the found subdomains to identify services

Once we see which hosts can be investigated further, we can generate a list of IP addresses with a minor adjustment to the cut command and run them through Shodan.

Shodan can be used to find devices and systems permanently connected to the Internet like Internet of Things (IoT). It searches the Internet for open TCP/IP ports and filters the systems according to specific terms and criteria. For example, open HTTP or HTTPS ports and other server ports for FTP, SSH, SNMP, Telnet, RTSP, or SIP are searched. As a result, we can find devices and systems, such as surveillance cameras, servers, smart home systems, industrial controllers, traffic lights and traffic controllers, and various network components.

z3tssu@htb[/htb]$ for i in $(cat subdomainlist);do host $i | grep "has address" | grep inlanefreight.com | cut -d" " -f4 >> ip-addresses.txt;done
z3tssu@htb[/htb]$ for i in $(cat ip-addresses.txt);do shodan host $i;done

10.129.24.93
City:                    Berlin
Country:                 Germany
Organization:            InlaneFreight
Updated:                 2021-09-01T09:02:11.370085
Number of open ports:    2

Ports:
     80/tcp nginx 
    443/tcp nginx 
	
10.129.27.33
City:                    Berlin
Country:                 Germany
Organization:            InlaneFreight
Updated:                 2021-08-30T22:25:31.572717
Number of open ports:    3

Ports:
     22/tcp OpenSSH (7.6p1 Ubuntu-4ubuntu0.3)
     80/tcp nginx 
    443/tcp nginx 
        |-- SSL Versions: -SSLv2, -SSLv3, -TLSv1, -TLSv1.1, -TLSv1.3, TLSv1.2
        |-- Diffie-Hellman Parameters:
                Bits:          2048
                Generator:     2
				
10.129.27.22
City:                    Berlin
Country:                 Germany
Organization:            InlaneFreight
Updated:                 2021-09-01T15:39:55.446281
Number of open ports:    8

Ports:
     25/tcp  
        |-- SSL Versions: -SSLv2, -SSLv3, -TLSv1, -TLSv1.1, TLSv1.2, TLSv1.3
     53/tcp  
     53/udp  
     80/tcp Apache httpd 
     81/tcp Apache httpd 
    110/tcp  
        |-- SSL Versions: -SSLv2, -SSLv3, -TLSv1, -TLSv1.1, TLSv1.2
    111/tcp  
    443/tcp Apache httpd 
        |-- SSL Versions: -SSLv2, -SSLv3, -TLSv1, -TLSv1.1, TLSv1.2, TLSv1.3
        |-- Diffie-Hellman Parameters:
                Bits:          2048
                Generator:     2
                Fingerprint:   RFC3526/Oakley Group 14
    444/tcp  
		
10.129.27.33
City:                    Berlin
Country:                 Germany
Organization:            InlaneFreight
Updated:                 2021-08-30T22:25:31.572717
Number of open ports:    3

Ports:
     22/tcp OpenSSH (7.6p1 Ubuntu-4ubuntu0.3)
     80/tcp nginx 
    443/tcp nginx 
        |-- SSL Versions: -SSLv2, -SSLv3, -TLSv1, -TLSv1.1, -TLSv1.3, TLSv1.2
        |-- Diffie-Hellman Parameters:
                Bits:          2048
                Generator:     2

DNS Records
z3tssu@htb[/htb]$ dig any inlanefreight.com

; <<>> DiG 9.16.1-Ubuntu <<>> any inlanefreight.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 52058
;; flags: qr rd ra; QUERY: 1, ANSWER: 17, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 65494
;; QUESTION SECTION:
;inlanefreight.com.             IN      ANY

;; ANSWER SECTION:
inlanefreight.com.      300     IN      A       10.129.27.33
inlanefreight.com.      300     IN      A       10.129.95.250
inlanefreight.com.      3600    IN      MX      1 aspmx.l.google.com.
inlanefreight.com.      3600    IN      MX      10 aspmx2.googlemail.com.
inlanefreight.com.      3600    IN      MX      10 aspmx3.googlemail.com.
inlanefreight.com.      3600    IN      MX      5 alt1.aspmx.l.google.com.
inlanefreight.com.      3600    IN      MX      5 alt2.aspmx.l.google.com.
inlanefreight.com.      21600   IN      NS      ns.inwx.net.
inlanefreight.com.      21600   IN      NS      ns2.inwx.net.
inlanefreight.com.      21600   IN      NS      ns3.inwx.eu.
inlanefreight.com.      3600    IN      TXT     "MS=ms92346782372"
inlanefreight.com.      21600   IN      TXT     "atlassian-domain-verification=IJdXMt1rKCy68JFszSdCKVpwPN"
inlanefreight.com.      3600    IN      TXT     "google-site-verification=O7zV5-xFh_jn7JQ31"
inlanefreight.com.      300     IN      TXT     "google-site-verification=bow47-er9LdgoUeah"
inlanefreight.com.      3600    IN      TXT     "google-site-verification=gZsCG-BINLopf4hr2"
inlanefreight.com.      3600    IN      TXT     "logmein-verification-code=87123gff5a479e-61d4325gddkbvc1-b2bnfghfsed1-3c789427sdjirew63fc"
inlanefreight.com.      300     IN      TXT     "v=spf1 include:mailgun.org include:_spf.google.com include:spf.protection.outlook.com include:_spf.atlassian.net ip4:10.129.24.8 ip4:10.129.27.2 ip4:10.72.82.106 ~all"
inlanefreight.com.      21600   IN      SOA     ns.inwx.net. hostmaster.inwx.net. 2021072600 10800 3600 604800 3600

;; Query time: 332 msec
;; SERVER: 127.0.0.53#53(127.0.0.53)
;; WHEN: Mi Sep 01 18:27:22 CEST 2021
;; MSG SIZE  rcvd: 940
Explanation of Record Types

  • A records: We recognize the IP addresses that point to a specific (sub)domain through the A record. Here we only see one that we already know.

  • MX records: The mail server records show us which mail server is responsible for managing the emails for the company. Since this is handled by google in our case, we should note this and skip it for now.

  • NS records: These kinds of records show which name servers are used to resolve the FQDN to IP addresses. Most hosting providers use their own name servers, making it easier to identify the hosting provider.

  • TXT records: this type of record often contains verification keys for different third-party providers and other security aspects of DNS, such as SPF, DMARC, and DKIM, which are responsible for verifying and confirming the origin of the emails sent. Here we can already see some valuable information if we look closer at the results.

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