Description
This module exploits a vulnerability on Microsoft Exchange Server that allows an attacker to bypass the authentication (CVE-2021-31207), impersonate an arbitrary user (CVE-2021-34523) and write an arbitrary file (CVE-2021-34473) to achieve the RCE (Remote Code Execution).
By taking advantage of this vulnerability, you can execute arbitrary commands on the remote Microsoft Exchange Server.
This vulnerability affects Exchange 2013 CU23 < 15.0.1497.15, Exchange 2016 CU19 < 15.1.2176.12, Exchange 2016 CU20 < 15.1.2242.5, Exchange 2019 CU8 < 15.2.792.13, Exchange 2019 CU9 < 15.2.858.9.
All components are vulnerable by default.
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/http/exchange/proxyshell_rcemsf undefined(proxyshell_rce) > show actions ...actions...msf undefined(proxyshell_rce) > set ACTION < action-name >msf undefined(proxyshell_rce) > show options ...show and set options...msf undefined(proxyshell_rce) > runPrioritise with Active Threat Intelligence
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