Description
This module exploits a use-after-free vulnerability in Internet Explorer. The vulnerability occurs when an invalid <object> tag exists and other elements overlap/cover where the object tag should be when rendered (due to their styles/positioning). The mshtml!CObjectElement is then freed from memory because it is invalid. However, the mshtml!CDisplay object for the page continues to keep a reference to the freed <object> and attempts to call a function on it, leading to the use-after-free.
Please note that for IE 8 targets, JRE (Java Runtime Environment) is required to bypass DEP (Data Execution Prevention).
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/windows/browser/ms11_050_mshtml_cobjectelementmsf undefined(ms11_050_mshtml_cobjectelement) > show actions ...actions...msf undefined(ms11_050_mshtml_cobjectelement) > set ACTION < action-name >msf undefined(ms11_050_mshtml_cobjectelement) > show options ...show and set options...msf undefined(ms11_050_mshtml_cobjectelement) > runPrioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub