java barcode reader free 9: WAP and Mobile HTML Security in Android

Making Data Matrix 2d barcode in Android 9: WAP and Mobile HTML Security

9: WAP and Mobile HTML Security
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A good way to test for this is by using your favorite webmail application via your phone Try logging into your web mail application on your mobile device Then surf around to two or three other pages outside of your webmail application After a few minutes of browsing, return to your webmail application again You ll notice you are still logged in because you do not have to reauthenticate to your original webmail session, even though you clicked away to visit other sites for a while Complete the following steps to follow this idea:
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1 On your mobile browser, visit mgmailcom Log in with your
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username/password
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2 Visit three to five other pages, such as the following:
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wwwisecpartnerscom espngocom wwwcnncom wwwclevelandbrownscom wwwnewscom
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3 Now revisit mgmailcom You ll notice you are still logged in, despite browsing
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away to other sites Steps 1 to 3 simply prove the browser behavior on the mobile device is similar to a PC, hence making CSRF attacks using mobile browsers very possible and not different from the PC world For example, if Gmail were vulnerable to CSRF attacks, then hostile content on the sites listed in step 2 could force actions on Gmail without the user s knowledge or permission, due to the browser maintaining state on multiple sessions across multiple destinations This idea becomes very critical when you replace Gmail with a mobile bank application that is vulnerable to CSRF For example, many mobile users will probably use their device to check their bank balances If the user does not sign out or is not signed out automatically, and then visits other pages on their mobile device for casual reading or general web surfing, any hostile page targeting their bank application will be able to perform a CSRF attack, using the tradition attack methodology of CSRF
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Targeting CSRF on Mobile HTML Applications
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Now that you know that CSRF attacks are possible using mobile browsers, let s now focus on the real issue, which is the exposure of CSRF on Mobile HTML sites Similar to regular applications, CSRF exposures on a Mobile HTML site is
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Mobile Application Security
a huge concern Mobile users are just as likely, if not more, to surf around from one site to another while being logged into a sensitive mobile application such as a banking site, stock trading site, payment site, or something similar In most scenarios, users are not going to log off from the stock trading site before visiting a news site on their mobile phone; they will just perform the action seamlessly Furthermore, if the user is logged into their banking site on the mobile browser and gets a hostile link from their e-mail client on their phone, they are more apt to quickly click on that link, which will redirect to their mobile browser, than to keep the two items separate Similar to SQL injection, the best way to test for CSRF attacks on a Mobile HTML site is using a WAP plug-in for IE or Firefox (ensuring the Mobile HTML page is loaded on the browser, just in case it changes any behavior based on that information), using a web proxy to view the web information (such as the TamperData add-on for Firefox), and then using the Mobile HTML page of the application Complete the following steps to test for CSRF on mobile HTML sites:
1 Using Firefox, install the wmlbrowser add-on (https://addonsmozillaorg/
en-US/firefox/addon/62)
2 Install the TamperData add-on (https://addonsmozillaorg/en-US/firefox/
addon/966)
3 Visit the mobile HTML site of the application you wish to test and log in with
a valid username/password
4 Go to an area of the application that performs sensitive actions, such as the
account/user profile page (where users can reset their password, e-mail address, username, and so on)
5 Enable TamperData (Tools | TamperData | Start Tamper) 6 Change the e-mail address on the page and select ENTER 7 When the Tamper Data pop-up appears, select Tamper 8 On the right side, view the contents of the post (details of the user/account
profile page) Delete the values for fields that look unique or unpredictable, such as fields labeled nonce, token, SessionID, and so on The idea is to delete any value for a field that is unpredictable/unguessable between users, so if something looks machine generated, delete it Fields that are predictable and should not be deleted include e-mail address, name, password, and so on
9 Select OK and then Stop Tamper 10 If the action completes successfully, the mobile page is vulnerable to CSRF
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