S4E just found a high top 10 tcp port service scan
medium·Misconfiguration·Updated Dec 16, 2023

Subdomain Takeover Vulnerability Scanner

Online Subdomain Takeover Vulnerability Scanner

Est. Time~20 seconds
Scan TypeSingle Scan
Targetsdomain, ipv4, subdomain
CostFree
537
Times Used
by S4E users
14
Assets Scanned
domains & IPs
25
Vulnerabilities Found
confirmed findings
Detail

What is Subdomain Takeover?

If your subdomain pointing a non-exist webpage, an attacker can claim that page by adding CNAME file containing your subdomain address which results in gaining control of your subdomain.

If the subdomain takeover is successful a wide variety of attacks are possible (serving malicious content, phising, stealing user session cookies, credentials, etc.).

Solution Advice

To protect from subdomain takeover attacks, the digital footprint DNS records should be properly monitored and analyzed. Cleaning old CNAME records should be automated and the DNS zone file should be kept up to date.

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Online Subdomain Takeover Vulnerability Scanner S4E