Description
This module exploits an issue in the V8 engine on x86_x64 builds of Google Chrome before 89.0.4389.128/90.0.4430.72 when handling XOR operations in JIT'd JavaScript code. Successful exploitation allows an attacker to execute arbitrary code within the context of the V8 process.
As the V8 process is normally sandboxed in the default configuration of Google Chrome, 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/cve_2021_21220_v8_insufficient_validationmsf undefined(cve_2021_21220_v8_insufficient_validation) > show actions ...actions...msf undefined(cve_2021_21220_v8_insufficient_validation) > set ACTION < action-name >msf undefined(cve_2021_21220_v8_insufficient_validation) > show options ...show and set options...msf undefined(cve_2021_21220_v8_insufficient_validation) > runPrioritise with Active Threat Intelligence
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