asp.net - Having SQL injection like text in a texbox results in 401.1 on Submit -

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this follow post in august: asks ad credentials / "connection interrupted" on postback

the issue popped again new record , have determined offending text "... sharepoint site[semi-colon] update team schedule ...". notice "[semi-colon] update team"? it's valid, not sql injection. change comma, submits no problem. change "update" sql keyword, user gets prompted credentials (which rejected) , displays iis 401.1 page.

yes, need replace [semi-colon] character, because won't let me post.

in @page, have validaterequest="false" (yes, contents textboxes going through httputility.htmlencode parameterized input stored procedure)

any ideas?

this sounds load balancer or similar seeing ;update , suspecting sql injection. piece of offending hardware between , web server.

to confirm, try posting offending text session directly on web server itself. guessing have no problem doing so.


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