Windows 10: Security Issue: Teams allows to bypass familiy web access restrictions

Discus and support Security Issue: Teams allows to bypass familiy web access restrictions in AntiVirus, Firewalls and System Security to solve the problem; I set up a restricted Windows 10 familiy member account. With this account it is impossible to access youtube.com and other webites. This works if you... Discussion in 'AntiVirus, Firewalls and System Security' started by Carsten BjørnKeil, Apr 19, 2021.

  1. Security Issue: Teams allows to bypass familiy web access restrictions


    I set up a restricted Windows 10 familiy member account. With this account it is impossible to access youtube.com and other webites. This works if you try to access the site directly with egde: any attempt is blocked by the Windows family feature and reported with a corresponding sdx.microsoft.com/family/restricted-web entry.


    BUT if you press on a youtube link posted in a teams chat, it branches off in a new Edge tab and opens youtube within it: This tab is now alleviated, it is NOT blocked by the Windows familiy feature, NOT even reported in the family log files. It seems that this open-youtube-via-link-in-teams tunnels the Windows family firewall.


    This sounds like a serious security breach to me and exposes a supposedly protected kid behind the windows family firewall to any undesired exposure out there.


    How do i prevent that a user can tunnel the windows familiy firewall with this teams-link-hack? any help appreciated.


    NB1: i am not the teams administrator, so can not block posting / accessing youtube links from within teams.

    NB2: Brutal blocking of accessing youtube via the hosts file or norton familiy works but i really would prefer to work using only the windows family safeguard.

    :)
     
    Carsten BjørnKeil, Apr 19, 2021
    #1
  2. dozenfury Win User

    Intel AMT Security Issue Lets Attackers Bypass Login Credentials

    This one seems a lot less of a security issue and more of an area where maybe some extra checks can be put in. Whenever you have to assume for an exploit that someone hasn't changed the default pw, the onus is kind of on them. Especially when it comes to IME and business laptops. That should be step 1 for the laptop configurators in any responsible IT department. Otherwise if you start going down this road you could almost say this about any PC. If a person is given local unfettered access to any PC with a default pw, it's easy enough to quickly turn off security checks and enable remote access.

    Seems like this is more a case of F-Secure taking advantage of the news focus on Intel and Meltdown/Spectre to claim discovery of another Intel bug for their own accolades. If I leave my car door unlocked and the keys in the ignition, it allows a person to bypass other security car alarm/key fob checks, but it would be a stretch to call that a security vulnerability. And that's what this one feels a bit like.
     
    dozenfury, Apr 19, 2021
    #2
  3. Preventing access to modern app

    Ive been tasked with preventing the children from accessing instagram. I've got it listed in my windows hosts file and internet options/security/restricted site but the windows 10 app is still allowing access. Any suggestions other then deleting app which can just be reinstalled?
     
    FrostyWinnipeg, Apr 19, 2021
    #3
  4. Security Issue: Teams allows to bypass familiy web access restrictions

    Children bypassing web filters use add account

    I have family safety setup with content restrictions and both a block and allow list for websites. The kids have found a way to bypass web restrictions and go to youtube using Mail, Manage Accounts then add account. I don't think they have to add an account.
    They may just login to a second unrestricted account and then access youtube. They don't do it while I am around, and I don't have many more specifics. Has anyone else seen this? Does anyone have a solution?

    I seems they use a directory under the user directory. Appdata\Roaming\Microsoft\Start Menu\Programs\startup\"a name" sometimes dddd sometimes yotubw, but I think this folder name can be anything.

    Thanks
     
    A_Concerned_Parent, Apr 19, 2021
    #4
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Security Issue: Teams allows to bypass familiy web access restrictions

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