Yes, you can use Authorization tag to give permissions to specific users to access specific pages using some configurations in web.config file. For example;
<system.web>
<authentication mode="Forms" >
<forms loginUrl="login.aspx" name=".ASPNETAUTH" protection="None" path="/" timeout="20" >
</forms>
</authentication>
<!-- This section denies access to all files in this application except for those that
you have not explicitly specified by using location setting. -->
<authorization>
<deny users="?" />
</authorization>
</system.web>
<!-- This section will give access to the defined user on default page and deny access to all other users -->
<location path="default.aspx">
<system.web>
<authorization>
<allow users = "Mary" />
<deny users = "John" />
<deny users = "?" />
</authorization>
</system.web>
</location>
<!-- This section will give access to test.aspx page to all users. -->
<location path="test.aspx">
<system.web>
<authorization>
<allow users ="*" />
</authorization>
</system.web>
</location>
<system.web>
<authentication mode="Forms" >
<forms loginUrl="login.aspx" name=".ASPNETAUTH" protection="None" path="/" timeout="20" >
</forms>
</authentication>
<!-- This section denies access to all files in this application except for those that
you have not explicitly specified by using location setting. -->
<authorization>
<deny users="?" />
</authorization>
</system.web>
<!-- This section will give access to the defined user on default page and deny access to all other users -->
<location path="default.aspx">
<system.web>
<authorization>
<allow users = "Mary,john" />
<deny users = "?" />
</authorization>
</system.web>
</location>
<!-- This section will give access to test.aspx page to all users. -->
<location path="test.aspx">
<system.web>
<authorization>
<allow users ="*" />
</authorization>
</system.web>
</location>
For more information, please view following links.
http://support.microsoft.com/kb/316871
http://authors.aspalliance.com/aspxtreme/webapps/aspnetauthorization.aspx
Hope it will help.
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