1. watchA

subdomain takeover の実例

http://beta.dehaag.com

2. whois

3. history

$ dig beta.denhaag.com

; <<>> DiG 9.16.1-Ubuntu <<>> beta.denhaag.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 12957
;; flags: qr rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 65494
;; QUESTION SECTION:
;beta.denhaag.com.              IN      A

;; ANSWER SECTION:
beta.denhaag.com.       823     IN      CNAME   site-denhaagcom.azurewebsites.net.
site-denhaagcom.azurewebsites.net. 29 IN CNAME  waws-prod-blu-203.sip.azurewebsites.windows.net.
waws-prod-blu-203.sip.azurewebsites.windows.net. 256 IN CNAME waws-prod-blu-203-0b2c.eastus.cloudapp.azure.com.
waws-prod-blu-203-0b2c.eastus.cloudapp.azure.com. 9 IN A 20.49.104.9

;; Query time: 36 msec
;; SERVER: 127.0.0.53#53(127.0.0.53)
;; WHEN: 木  3月 25 17:09:50 JST 2021
;; MSG SIZE  rcvd: 225

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CategoryDns CategoryWatch CategoryTemplate