Which of the following kinds of function are particularly vulnerable to format string attacks?
C functions that perform output formatting
C functions that perform integer computation
C functions that perform real number subtraction
VB functions that perform integer conversion
SQL functions that perform string conversion
SQL functions that perform text conversion
Format string attacks are a new class of vulnerabilities recently discovered. It can be used to crash
a program or to execute harmful code. The problem stems from the use of unfiltered user input as
the format string parameter in certain C functions that perform formatting, such as printf(). A
malicious user may use the %s and %x format tokens, among others, to print data from the stack
or possibly other locations in memory. One may also write arbitrary data to arbitrary locations using
the %n format token.