Description
This module exploits an issue in Chrome 73.0.3683.86 (64 bit). The exploit corrupts the length of a float in order to modify the backing store of a typed array. The typed array can then be used to read and write arbitrary memory. The exploit then uses WebAssembly in order to allocate a region of RWX memory, which is then replaced with the payload. The payload is executed within the sandboxed renderer process, so the browser must be run with the --no-sandbox option for the payload to work correctly.
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 exploit/multi/browser/chrome/array_mapmsf undefined(array_map) > show actions ...actions...msf undefined(array_map) > set ACTION < action-name >msf undefined(array_map) > show options ...show and set options...msf undefined(array_map) > runPrioritise with Active Threat Intelligence
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