J
Jeffrey
My ASP.NET Web app has a "global error handler" (http module) that catches
any exceptions not caught in any try/catch handlers. It logs details about
every exception. I got this strange one today and I'm wondering what it
means.
I'm wondering if someone tried to hack into the site. Check out the RAW URL
value. That querystring value isn't anything I have set - did someone put
that in there explicitly? If so, what could it possibly do for them. Also
check out the "INNER INNER EXCEPTION STACK TRACE" value. It apparently
involves a call to something called LoadPageStateFromPersistenceMedium().
What is this "persistence medium"?
RAW URL:
/Default.aspx?__EVENTTARGET=&__EVENTARGUMENT=&__VIEWSTATE=dDwtMjM5NTgxOTgwOzs+gtQlX8GJplxnKs1bJgUnSYlxTxs=&_ctl0__ctl0_menuCA_ContextData=/
USER AGENT:
Mozilla/4.0 (compatible; MSIE 5.0; Windows NT 4.0)
ERROR MESSAGE:
Exception of type System.Web.HttpUnhandledException was thrown.
STACK TRACE:
at System.Web.UI.Page.HandleError(Exception e) at
System.Web.UI.Page.ProcessRequestMain() at
System.Web.UI.Page.ProcessRequest() at
System.Web.UI.Page.ProcessRequest(HttpContext context) at
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication+IExecutionStep.Execute()
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean&
completedSynchronously)
INNER EXCEPTION STACK TRACE:
at System.Web.UI.Page.LoadPageStateFromPersistenceMedium() at
System.Web.UI.Page.LoadPageViewState() at
System.Web.UI.Page.ProcessRequestMain()
INNER INNER EXCEPTION STACK TRACE:
at System.Convert.FromBase64String(String s) at
System.Web.UI.LosFormatter.Deserialize(String input) at
System.Web.UI.Page.LoadPageStateFromPersistenceMedium()
Other data logged for this exception indicates that this user was not logged
on to the site at the time the exception occurred.
I'd appreciate any insight into what this is all about.
Thanks!
any exceptions not caught in any try/catch handlers. It logs details about
every exception. I got this strange one today and I'm wondering what it
means.
I'm wondering if someone tried to hack into the site. Check out the RAW URL
value. That querystring value isn't anything I have set - did someone put
that in there explicitly? If so, what could it possibly do for them. Also
check out the "INNER INNER EXCEPTION STACK TRACE" value. It apparently
involves a call to something called LoadPageStateFromPersistenceMedium().
What is this "persistence medium"?
RAW URL:
/Default.aspx?__EVENTTARGET=&__EVENTARGUMENT=&__VIEWSTATE=dDwtMjM5NTgxOTgwOzs+gtQlX8GJplxnKs1bJgUnSYlxTxs=&_ctl0__ctl0_menuCA_ContextData=/
USER AGENT:
Mozilla/4.0 (compatible; MSIE 5.0; Windows NT 4.0)
ERROR MESSAGE:
Exception of type System.Web.HttpUnhandledException was thrown.
STACK TRACE:
at System.Web.UI.Page.HandleError(Exception e) at
System.Web.UI.Page.ProcessRequestMain() at
System.Web.UI.Page.ProcessRequest() at
System.Web.UI.Page.ProcessRequest(HttpContext context) at
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication+IExecutionStep.Execute()
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean&
completedSynchronously)
INNER EXCEPTION STACK TRACE:
at System.Web.UI.Page.LoadPageStateFromPersistenceMedium() at
System.Web.UI.Page.LoadPageViewState() at
System.Web.UI.Page.ProcessRequestMain()
INNER INNER EXCEPTION STACK TRACE:
at System.Convert.FromBase64String(String s) at
System.Web.UI.LosFormatter.Deserialize(String input) at
System.Web.UI.Page.LoadPageStateFromPersistenceMedium()
Other data logged for this exception indicates that this user was not logged
on to the site at the time the exception occurred.
I'd appreciate any insight into what this is all about.
Thanks!
laceHolder EnableViewState="false" id="PageTemplatePlaceHolder"