Description
This module uses a denial-of-service (DoS) condition appearing in a variety of programming languages. This vulnerability occurs when storing multiple values in a hash table and all values have the same hash value. This can cause a web server parsing the POST parameters issued with a request into a hash table to consume hours of CPU with a single HTTP request.
Currently, only the hash functions for PHP and Java are implemented. This module was tested with PHP + httpd, Tomcat, Glassfish and Geronimo. It also generates a random payload to bypass some IDS signatures.
Module options
To display the available options, load the module within the Metasploit console and run the commands 'show options' or 'show advanced':
msf > use auxiliary/dos/http/hashcollision/dosmsf undefined(dos) > show actions ...actions...msf undefined(dos) > set ACTION < action-name >msf undefined(dos) > show options ...show and set options...msf undefined(dos) > runPrioritise with Active Threat Intelligence
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