Category Archives: PHP

No Love for the Null Byte

By | September 22, 2011

Attackers have commonly used the null character to bypass file extension restrictions during the exploitation of local file inclusion vulnerabilities.  rain.forest.puppy outlined this type of attack against Perl-based CGI applications in Phrack issue 55 over ten years ago, but the problem has also affected web applications written in other higher-level languages such as Java, .NET, and… Read More »