Added readme

Author: rwincey

documentation/modules/exploit/windows/misc/commvault_cmd_exec.md

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+## Vulnerable Application
+
+
+This module exploits a remote command injection vulnerability in the Commvault Communications service (cvd.exe). Exploitation of this vulnerability can allow for remote command execution as SYSTEM.
+
+
+Additional information can be found [here](https://www.securifera.com/advisories/sec-2017-0001/)
+
+
+
+## Verification Steps
+
+1. Start msfconsole
+
+2. `use exploit/windows/misc/commvault_cmd_exec`
+
+3. `set RHOST [ip]`
+
+4. `exploit`
+
+5. shellz :)