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Cross Site Scripting

 
 
Fred
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      16th Oct 2003
When I try to upload a page to my already published website the transfer stops and I get this warning back from Norton: (Type as is)

Intrusion: HTTP-MS-SQL-XML-CrossSiteScripting
Intruder: localhost (1803)

I tried to add some forms yesterday which included scripts. Could this fact be causing the problem?


 
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John Clark
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      16th Oct 2003
Yes. Cross Site Scripting (XSS) is a serious security issue. If your forms take in information and then print that information without server-side validation, you risk XSS attack. Since this kind of attack is enabled with forms, that is probably what Norton is detecting.

If these forms are posting to a database backend (like SQL) the risk is much higher, because hackers can use the volunerability to delete tables from your database.

See if this helps:

http://support.microsoft.com/default...b;en-us;252985

-John
"Fred" <(E-Mail Removed)> wrote in message news:uNtCss$(E-Mail Removed)...
When I try to upload a page to my already published website the transfer stops and I get this warning back from Norton: (Type as is)

Intrusion: HTTP-MS-SQL-XML-CrossSiteScripting
Intruder: localhost (1803)

I tried to add some forms yesterday which included scripts. Could this fact be causing the problem?

 
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Fred
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      16th Oct 2003
It looks like it's an XSS problem. It says that one should "validate" forms etc before loading them. How does one do this?

Fred
"John Clark" <(E-Mail Removed)> wrote in message news:uxmp8w$(E-Mail Removed)...
Yes. Cross Site Scripting (XSS) is a serious security issue. If your forms take in information and then print that information without server-side validation, you risk XSS attack. Since this kind of attack is enabled with forms, that is probably what Norton is detecting.

If these forms are posting to a database backend (like SQL) the risk is much higher, because hackers can use the volunerability to delete tables from your database.

See if this helps:

http://support.microsoft.com/default...b;en-us;252985

-John
"Fred" <(E-Mail Removed)> wrote in message news:uNtCss$(E-Mail Removed)...
When I try to upload a page to my already published website the transfer stops and I get this warning back from Norton: (Type as is)

Intrusion: HTTP-MS-SQL-XML-CrossSiteScripting
Intruder: localhost (1803)

I tried to add some forms yesterday which included scripts. Could this fact be causing the problem?


 
Reply With Quote
 
 
 
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