HexBrain

Basecamp · Report #1253926

Domain Takeover [3737signals.com]

Validstatus
lowseverity
48upvotes
13 Aug 2021disclosed

How it was found

Hi, While i was analyzing the Basecamp3 Android app i found 3737signals.com on the source code as i understand you are passing it to the intentto view it on some case.

{F1368921}

When I opened it on the browser I got DNS error says the domain name does not exist

{F1368922}

As you can see at the bottom of the page webmaster is the domain name provider so I navigated to webmaster.com and searched for 3737sihttps://www.webmasters.com/domains/new.php?domain=3737signals.com&Action=Submit&Domain=3737signals&Suffix=.com&x=0&y=0gnals.com and found that it's available to register

{F1368920}

I am not sure if it's yours but if it's not just notify me to self close the report

Impact

  • Fake website
  • Malicious code injection
  • Users tricking
  • Company impersonation

This issue can have really huge impact on the companies reputation someone could post malicious content on the compromised site and then your users will think it's official but it's not.

Best Wishes, MrMax

This report was disclosed publicly on HackerOne and belongs to its author and the program. See the original