Description
Chamilo LMS is a free software e-learning and content management system. In versions prior to <= v1.11.24 a webshell can be uploaded via the bigload.php endpoint. If the GET request parameter `action` is set to `post-unsupported` file extension checks are skipped allowing for attacker controlled .php files to be uploaded to: `/main/inc/lib/javascript/bigupload/files/` if the `/files/` directory already exists - it does not exist 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/linux/http/chamilo/bigupload_webshellmsf undefined(bigupload_webshell) > show actions ...actions...msf undefined(bigupload_webshell) > set ACTION < action-name >msf undefined(bigupload_webshell) > show options ...show and set options...msf undefined(bigupload_webshell) > runPrioritise with Active Threat Intelligence
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