Dec 10, 2012 · If the input buffer comes from an untrusted source, this can result in a security attack, as the input can contain formatting specifiers that will pull data ...

Feb 3, 2019 · It is because in this case array decays to the pointer and this pointer referencing the first char element of this array. So no & is needed.

Nov 19, 2015 · This piece of code is vulnerable to format string vuln (I think) in the printf() function. It reads a file in /tmp/file so I've tried writing different ...

Jun 18, 2021 · Yes. You can specify the number of characters to read with %c format specifier, so you can use that in a special case in which the length of ...

The function accepts the name of the user as a string referenced by user . This is an exemplar of untrusted data that originates from an unauthenticated user.

Aug 15, 2024 · The solutions I see are: 1) use %n to get it to write the number of characters printed so far, 2) get it to skip the right number of words from the stack.

Duration: 2:57
Posted: Feb 10, 2021

Mar 18, 2022 · The vulnerability arises if the user input is used as the format string rather than the varg. char input[50] = "%x %x %x %x"; printf(input);