module
Klog Server authenticate.php user Unauthenticated Command Injection
| Disclosed |
|---|
| Dec 27, 2020 |
Disclosed
Dec 27, 2020
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.
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.
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