tamper data problem in asp.net

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Dear All,
This is question of web developement.
In FireFox there is an add-on like "tamper data".
Using this one can manipulate the post data of the form in asp.net
How can we prevent this?
any suggessions..? any idea...?

Regards,
rajshree

Posted 30-Sep-14 22:43pm

rajshreelande

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Sinisa Hajnal 1-Oct-14 7:05am

You can't. What you can is validate receiving data so that nothing bad can happen. This is always good practice - never trust user input.

rajshreelande 2-Oct-14 0:43am

how to validate receving data..can you please expore what exactly have to be done.

for example...if you have one textbox and consisting of xyz in it ..and click on save button start tamper data in firefox change the texbox data to abc then click on submit..after submit it can save the data to the database..so how to validate this tamper data.

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Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) · Answer 1 · 2014-10-01T01:21:00

Solution 1

Answered at - how to prevent data from tamper data of firefox plugin in asp.net[^]

Posted 1-Oct-14 1:21am

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)

Comments

rajshreelande 2-Oct-14 0:44am

how to validate receving data..can you please expore what exactly have to be done.

for example...if you have one textbox and consisting of xyz in it ..and click on save button start tamper data in firefox change the texbox data to abc then click on submit..after submit it can save the data to the database..so how to validate this tamper data.

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) 2-Oct-14 9:29am

I am asking to check the format of the data. Suppose you have a Phone Number field. Then you can validate the data in client side. You should not allow any special characters. Again you have to check the field's data in server side code before uploading it to the database.