Klog Server authenticate.php user Unauthenticated Command Injection
Description
This module exploits an unauthenticated command injection vulnerability in Klog Server versions 2.4.1 and prior. The `authenticate.php` file uses the `user` HTTP POST parameter in a call to the `shell_exec()` PHP function without appropriate input validation, allowing arbitrary command execution as the apache user. The sudo configuration permits the apache user to execute any command as root without providing a password, resulting in privileged command execution as root. This module has been successfully tested on Klog Server version 2.4.1 virtual appliance.
Author(s)
- b3kc4t
- Metin Yunus Kandemir
- bcoles <bcoles@gmail.com>
Platform
Linux,Unix
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/linux/http/klog_server_authenticate_user_unauth_command_injection
msf exploit(klog_server_authenticate_user_unauth_command_injection) > show targets
...targets...
msf exploit(klog_server_authenticate_user_unauth_command_injection) > set TARGET < target-id >
msf exploit(klog_server_authenticate_user_unauth_command_injection) > show options
...show and set options...
msf exploit(klog_server_authenticate_user_unauth_command_injection) > exploit
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