Can someone without the WiFi login and no physical access to a router still access it with the admin login?

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If you have an router with default login and password for the admin page, can a potential hacker gain access to it without first connecting to the LAN via the WiFi login?










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    If you have an router with default login and password for the admin page, can a potential hacker gain access to it without first connecting to the LAN via the WiFi login?










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      If you have an router with default login and password for the admin page, can a potential hacker gain access to it without first connecting to the LAN via the WiFi login?










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      If you have an router with default login and password for the admin page, can a potential hacker gain access to it without first connecting to the LAN via the WiFi login?







      wifi router






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      asked 1 hour ago









      Q-bertsuit

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          2 Answers
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          active

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          up vote
          3
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          This may be possible using cross-site request forgery. In this attack, the attacker triggers a request to your router, for example by including an image on his site:



          <img src="http://192.168.1.1/reboot_the_router?force=true">


          When a user visits his site, this triggers a request to the router.



          The attacker's site can trigger requests, but not view responses. Not all routers are vulnerable to this. Setting a non-default password certainly protects against CSRF.



          There are plans to block such requests in the browser, but these haven't been implemented yet.






          share|improve this answer






















          • Wow interesting. So this requires that a user that has access to the LAN clicks a specific link on some site? A hacker wont be able to specifically target a router?
            – Q-bertsuit
            1 hour ago










          • Yes, a LAN user visits the attacker's site and that causes a request from the LAN user to the router.
            – Sjoerd
            56 mins ago










          • But a router is typically not designed to grant access to its configuration page, even with the login/password details, without a) having physical access or b) having LAN access?
            – Q-bertsuit
            49 mins ago

















          up vote
          1
          down vote













          Almost all routers are configured by default to only expose the administration interface to the "LAN" side and not to the internet. Some routers have the option to enable or disable this, so it would be good to check the settings of your router.



          You can also test this using an online port scanner or this ShieldsUP! tool. These will check if they can access anything on your router from the internet.








          share|improve this answer




















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            2 Answers
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            2 Answers
            2






            active

            oldest

            votes









            active

            oldest

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            active

            oldest

            votes








            up vote
            3
            down vote













            This may be possible using cross-site request forgery. In this attack, the attacker triggers a request to your router, for example by including an image on his site:



            <img src="http://192.168.1.1/reboot_the_router?force=true">


            When a user visits his site, this triggers a request to the router.



            The attacker's site can trigger requests, but not view responses. Not all routers are vulnerable to this. Setting a non-default password certainly protects against CSRF.



            There are plans to block such requests in the browser, but these haven't been implemented yet.






            share|improve this answer






















            • Wow interesting. So this requires that a user that has access to the LAN clicks a specific link on some site? A hacker wont be able to specifically target a router?
              – Q-bertsuit
              1 hour ago










            • Yes, a LAN user visits the attacker's site and that causes a request from the LAN user to the router.
              – Sjoerd
              56 mins ago










            • But a router is typically not designed to grant access to its configuration page, even with the login/password details, without a) having physical access or b) having LAN access?
              – Q-bertsuit
              49 mins ago














            up vote
            3
            down vote













            This may be possible using cross-site request forgery. In this attack, the attacker triggers a request to your router, for example by including an image on his site:



            <img src="http://192.168.1.1/reboot_the_router?force=true">


            When a user visits his site, this triggers a request to the router.



            The attacker's site can trigger requests, but not view responses. Not all routers are vulnerable to this. Setting a non-default password certainly protects against CSRF.



            There are plans to block such requests in the browser, but these haven't been implemented yet.






            share|improve this answer






















            • Wow interesting. So this requires that a user that has access to the LAN clicks a specific link on some site? A hacker wont be able to specifically target a router?
              – Q-bertsuit
              1 hour ago










            • Yes, a LAN user visits the attacker's site and that causes a request from the LAN user to the router.
              – Sjoerd
              56 mins ago










            • But a router is typically not designed to grant access to its configuration page, even with the login/password details, without a) having physical access or b) having LAN access?
              – Q-bertsuit
              49 mins ago












            up vote
            3
            down vote










            up vote
            3
            down vote









            This may be possible using cross-site request forgery. In this attack, the attacker triggers a request to your router, for example by including an image on his site:



            <img src="http://192.168.1.1/reboot_the_router?force=true">


            When a user visits his site, this triggers a request to the router.



            The attacker's site can trigger requests, but not view responses. Not all routers are vulnerable to this. Setting a non-default password certainly protects against CSRF.



            There are plans to block such requests in the browser, but these haven't been implemented yet.






            share|improve this answer














            This may be possible using cross-site request forgery. In this attack, the attacker triggers a request to your router, for example by including an image on his site:



            <img src="http://192.168.1.1/reboot_the_router?force=true">


            When a user visits his site, this triggers a request to the router.



            The attacker's site can trigger requests, but not view responses. Not all routers are vulnerable to this. Setting a non-default password certainly protects against CSRF.



            There are plans to block such requests in the browser, but these haven't been implemented yet.







            share|improve this answer














            share|improve this answer



            share|improve this answer








            edited 58 mins ago

























            answered 1 hour ago









            Sjoerd

            14.8k73553




            14.8k73553











            • Wow interesting. So this requires that a user that has access to the LAN clicks a specific link on some site? A hacker wont be able to specifically target a router?
              – Q-bertsuit
              1 hour ago










            • Yes, a LAN user visits the attacker's site and that causes a request from the LAN user to the router.
              – Sjoerd
              56 mins ago










            • But a router is typically not designed to grant access to its configuration page, even with the login/password details, without a) having physical access or b) having LAN access?
              – Q-bertsuit
              49 mins ago
















            • Wow interesting. So this requires that a user that has access to the LAN clicks a specific link on some site? A hacker wont be able to specifically target a router?
              – Q-bertsuit
              1 hour ago










            • Yes, a LAN user visits the attacker's site and that causes a request from the LAN user to the router.
              – Sjoerd
              56 mins ago










            • But a router is typically not designed to grant access to its configuration page, even with the login/password details, without a) having physical access or b) having LAN access?
              – Q-bertsuit
              49 mins ago















            Wow interesting. So this requires that a user that has access to the LAN clicks a specific link on some site? A hacker wont be able to specifically target a router?
            – Q-bertsuit
            1 hour ago




            Wow interesting. So this requires that a user that has access to the LAN clicks a specific link on some site? A hacker wont be able to specifically target a router?
            – Q-bertsuit
            1 hour ago












            Yes, a LAN user visits the attacker's site and that causes a request from the LAN user to the router.
            – Sjoerd
            56 mins ago




            Yes, a LAN user visits the attacker's site and that causes a request from the LAN user to the router.
            – Sjoerd
            56 mins ago












            But a router is typically not designed to grant access to its configuration page, even with the login/password details, without a) having physical access or b) having LAN access?
            – Q-bertsuit
            49 mins ago




            But a router is typically not designed to grant access to its configuration page, even with the login/password details, without a) having physical access or b) having LAN access?
            – Q-bertsuit
            49 mins ago












            up vote
            1
            down vote













            Almost all routers are configured by default to only expose the administration interface to the "LAN" side and not to the internet. Some routers have the option to enable or disable this, so it would be good to check the settings of your router.



            You can also test this using an online port scanner or this ShieldsUP! tool. These will check if they can access anything on your router from the internet.








            share|improve this answer
























              up vote
              1
              down vote













              Almost all routers are configured by default to only expose the administration interface to the "LAN" side and not to the internet. Some routers have the option to enable or disable this, so it would be good to check the settings of your router.



              You can also test this using an online port scanner or this ShieldsUP! tool. These will check if they can access anything on your router from the internet.








              share|improve this answer






















                up vote
                1
                down vote










                up vote
                1
                down vote









                Almost all routers are configured by default to only expose the administration interface to the "LAN" side and not to the internet. Some routers have the option to enable or disable this, so it would be good to check the settings of your router.



                You can also test this using an online port scanner or this ShieldsUP! tool. These will check if they can access anything on your router from the internet.








                share|improve this answer












                Almost all routers are configured by default to only expose the administration interface to the "LAN" side and not to the internet. Some routers have the option to enable or disable this, so it would be good to check the settings of your router.



                You can also test this using an online port scanner or this ShieldsUP! tool. These will check if they can access anything on your router from the internet.









                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered 42 mins ago









                Sjoerd

                14.8k73553




                14.8k73553




















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