Rapid7

module

PlaySMS index.php Unauthenticated Template Injection Code Execution

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Disclosed
Feb 5, 2020
Created
Apr 3, 2020

Description

This module exploits a preauth Server-Side Template Injection vulnerability that leads to remote code execution
in PlaySMS before version 1.4.3. This issue is caused by double processing a server-side template with a custom
PHP template system called 'TPL' which is used in the PlaySMS template engine at
`src/Playsms/Tpl.php:_compile()`. The vulnerability is triggered when an attacker supplied username with a
malicious payload is submitted. This malicious payload is then stored in a TPL template which when rendered a
second time, results in code execution.
The TPL(https://github.com/antonraharja/tpl) template language is vulnerable to PHP code injection.

This module was tested against PlaySMS 1.4 on HackTheBox's Forlic Machine.

Authors

Touhid M.Shaikh [email protected]
Lucas Rosevear

Platform

PHP

Architectures

php

References

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