Java - Mix

Determines whether the input is given by a real user or a computer program

This tecniques is used to prevent the client applications from manipulating the contents of server data

Prepared statements support parameterized queries that prevent SQL injection

Increased performance of the code in case of repeated SQL statements

Each character is passed dynamically to the encoding function

Limit exact matches

Accept desirable known

Sanitize known undesirable matches

Reject known undesirables

Implements struts validator class

Check for similar number de fields in Action Form and Validation Form

Struts validation is done to prevent attacks caused through unchecked input

Avoid duplicate validation forms int he validation xml file

Enable the Struts Validator in the action form mapping

A Single digit 0, 1, or 9

Any digit number from 0 -9

A single digit that is 4, 5 , 6, or 7

A single character that is either a lowercase letter or a digit

A single digit that is 0, 1, 2, 3, 8, or 9

Encode Known Bad

Known Good

Reject Known bad

Accepting Exact Match

Accept any unknown

input validation through servlet filters in Java web application is effective due to minor modifications needed for input validation and servlets filters not are centralized in nature

Input validation in servlets is through multipart encoded content by handling multipart requests

Modern frameworks facilitate to provide input validation in the application itself

Servlet can be configured on an application if it does not require multipart request where automatic multipart request should be disabled

Application should rely only on one of defense.

ByteArrayInputStream

FileInputStream

FilterInputStream

InputStream

ObjectInput

Writer class is the base class of all the java IO Writer APIs

Subclasses include PrintWriter, BuferedWriter, etc

Subclasses include PushbackReader, BufferedReader, etc

Subclasses include StreamReader, PrintReader, etc

getbuffercopy()

CharBuffer.wrap(data_array)

CharBuffer.wrap(data_array).asReadOnlyBuffer()

BufferedInputStream(system.input_strm)

Reduce the number of persons while granting the high privileges

Use only trusted interfaces to reduce the exposure of the data passed between software and its environment

Avoid having multiple subjects sharing mechanisms to grant access to a resource

Reduce the amont of time on holds onto its privileges