I just found a security breach that can leak thousands of emails on a website!!

Today, I snooped around on a website I won’t mention the name of for privacy reasons, and they assign your account an user ID when you register.

Well, with a very simple trick in the console I managed to get everyone else’s email and account info (for example checking if they have a paid plan or not) by just lowering the user id, with no rate-limit on the endpoint!

So a bad actor could send targetted phishing emails to people by telling them there is a problem with their payment!

It’s funny because on their homepage, they state they use “Military grade encryption” (whatever that means!), and their privacy policy says “We encrypt the transmission of that information” (does that just mean they do it over https?)

So, moral of the story, don’t trust companies with your personal info!

I contacted the site, we’ll see if they fix it.

@privacy@lemmy.ml @privacy@lemmy.world @soatok

#cybersecurity #privacy #web #hacking

  • bamboo@lemmy.blahaj.zone
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    1 day ago

    In addition to letting the website owner know about the issue, I would reach out to Troy Hunt with your evidence, so the data can be loaded into Have I Been Pwned and the affected people notified.

  • kiszkot@feddit.nu
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    1 day ago

    Based on the description this seems to be improper authorisation. An authenticated user can access data that it’s not supposed to (I assume you need to log in to see the data). The site in question should have a security contact where you can send your proven finding. Something like security@company.com or cert@company.com. They will usually require GPG encryption so the misconfigurstion you are reporting is not snooped (the attachment should be enough).

    • shark@lemmy.org
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      19 hours ago

      Make sure you check for a security.txt file (typically /.well-known/security.txt), they should have the most up-to-date information in there.

  • TiredTiger@lemmy.ml
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    1 day ago

    If the website in question belongs to a tech/hardware company, you could consider reaching out to Gamers Nexus (after you’ve given the owners of the site a reasonable amount of time to address the issue). They’ve published this kind of stuff in the past.

    • @hansolo Well, I can’t really share more details without compromising the privacy of thousands of people who didn’t ask for anything! I don’t really know what else I can tell you? If the website does not fix it then I can disclose the vulnerability, but since there are accounts dating back to 2009 the code base must be super old and hard to fix so I’ll give them some time.

      • hansolo@lemmy.today
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        1 day ago

        Sure, I get that. But I can also just as easily say the same thing and claim it is one of the largest companies in the world.

        You are 100% corect that we should not trust companies with our data. No argument there. Please just realize we might have some skepticism.

  • Zerush@lemmy.ml
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    1 day ago

    Email is always a traceable identification if you don’t use an mail with alias features or front-end…

      • N0x0n@lemmy.ml
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        1 day ago

        Hey… I use alot of em dashes in my notes and I really like em ! I hate that everyone associate em-dashes with ai written stuff (even if it’s true !)

        Rantoff

      • CodenameDarlen@lemmy.world
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        1 day ago

        Seeing your profile you manifest an exclusive behavior like using hashtags and tagging communities very often on posts and comments, it seems something only an AI would care about. Too much correctness.

        • @CodenameDarlen It’s because I post on mastodon : My instance is furries.club (check my username) and that’s a Mastodon instance that works with hashtags to find posts. Instead of writing the same post multiple times, I use instead the 𝓶𝓪𝓰𝓲𝓬 𝓸𝓯 𝓯𝓮𝓭𝓮𝓻𝓪𝓽𝓲𝓸𝓷 to write the post only once with hashtags and by tagging the Lemmy community so that it also gets posted there, and people who comment in one platform will also have their comment show up on the other platform.

        • floquant@lemmy.dbzer0.com
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          1 day ago

          Whenever you see a user starting their reply with a tag for the user they’re replying to, you’re interacting with a threadiverse user, usually mastodon or pixelfed

          • Not in all cases actually, as is shown by this reply! Mastodon just defaults to including the @ of the person you are replying to, so they get a notification, but it works without!