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PHPMailer Sendmail Argument Injection

PHPMailer versions up to and including 5.2.19 are affected by a vulnerability which can be leveraged by an attacker to write a file with partially controlled contents to an arbitrary location through injection of arguments that are passed to the sendmail binary. This module writes a payload to the web root of the webserver before then executing it with an HTTP request. The user running PHPMailer must have write access to the specified WEB_ROOT directory and successful exploitation can take a few minutes.

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Module Name

exploit/multi/http/phpmailer_arg_injection

Authors

  • Dawid Golunski
  • Spencer McIntyre

References

Targets

  • Automatic
  • PHPMailer <5.2.18
  • PHPMailer 5.2.18 - 5.2.19

Platforms

  • php

Architectures

  • php

Reliability

Development

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/http/phpmailer_arg_injection msf exploit(phpmailer_arg_injection) > show targets ...targets... msf exploit(phpmailer_arg_injection) > set TARGET <target-id> msf exploit(phpmailer_arg_injection) > show options ...show and set options... msf exploit(phpmailer_arg_injection) > exploit