Question

I am receiving repeated errors from my asp.net ecommerce web app. I am beginning to suspect an automated malicious probe as this is the twelfth attempt to access ProductId=69 which does not exist (ProductId 69 was removed month ago ). I have not found any info via google and hope someone recognizes this. Here is the log entry.

Page location:
/Product.aspx?ProductId=69

Message: Violation of PRIMARY KEY
constraint ‘PK_ShoppingCart’. Cannot
insert duplicate key in object
‘dbo.ShoppingCart’. The statement has
been terminated.

Source: .Net SqlClient Data Provider

Method: Void
OnError(System.Data.SqlClient.SqlException,
Boolean)

Stack Trace:

at
System.Data.SqlClient.SqlConnection.OnError(SqlException
exception, Boolean breakConnection) at
System.Data.SqlClient.SqlInternalConnection.OnError(SqlException
exception, Boolean breakConnection) at
System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject
stateObj) at
System.Data.SqlClient.TdsParser.Run(RunBehavior
runBehavior, SqlCommand cmdHandler,
SqlDataReader dataStream,
BulkCopySimpleResultSet
bulkCopyHandler, TdsParserStateObject
stateObj) at
System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader
ds, RunBehavior runBehavior, String
resetOptionsString) at
System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior
cmdBehavior, RunBehavior runBehavior,
Boolean returnStream, Boolean async)
at
System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior
cmdBehavior, RunBehavior runBehavior,
Boolean returnStream, String method,
DbAsyncResult result) at
System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(DbAsyncResult
result, String methodName, Boolean
sendToPipe) at
System.Data.SqlClient.SqlCommand.ExecuteNonQuery()
at
GenericDataAccess.ExecuteNonQuery(DbCommand
command)

Answer 1

Finally identified this error as a duplicate order attempt.