A website that serves a JSONP endpoint that accepts a custom alphanumeric callback of 1200 chars can be abused to serve an encoded swf payload that steals the contents of a same-domain URL. Flash < 14.0.0.145 is required. This module spins up a web server that, upon navigation from a user, attempts to abuse the specified JSONP endpoint URLs by stealing the response from GET requests to STEAL_URLS.
To display the available options, load the module within the Metasploit console and run the commands 'show options' or 'show advanced':
msf > use auxiliary/gather/flash_rosetta_jsonp_url_disclosure
msf auxiliary(flash_rosetta_jsonp_url_disclosure) > show actions
...actions...
msf auxiliary(flash_rosetta_jsonp_url_disclosure) > set ACTION < action-name >
msf auxiliary(flash_rosetta_jsonp_url_disclosure) > show options
...show and set options...
msf auxiliary(flash_rosetta_jsonp_url_disclosure) > run
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