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Monitoring Samba from a web page using smbstatus
Hello,
On line 3 of kill.php you have
echo shell_exec("sudo ./smbkill ".$_GET['kill']." 2>&1");
This presents privilege escalation issues, like this:
GET /kill.php?kill=%26%26%20sudo%20init%200
The above would shut the host machine down but can be used to perform many more malicious actions as root.
While I highly advise against giving apache sudo access, you can mitigate this issue by changing that line to read like this:
echo shell_exec("sudo ./smbkill ".escapeshellcmd($_GET['kill'])." 2>&1");
Then in visudo remove your sudo access for apache add the following line:
apache localhost = (root) NOPASSWD: /path/to/smbkill
This will make it so apache is only allowed to sudo that one command.
Thanks.
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