From 1ed92e187ae2dfb51f5f2d62c290a85f93b6dc21 Mon Sep 17 00:00:00 2001
From: Till Brehm <tbrehm@ispconfig.org>
Date: Thu, 14 Aug 2014 13:54:00 -0400
Subject: [PATCH] - Added security check script. - Create md5 sums of all files at install and update.

---
 security/check.php |  113 +++++++++++++++++++++++++++++++++++++++++++++++++++++++-
 1 files changed, 110 insertions(+), 3 deletions(-)

diff --git a/security/check.php b/security/check.php
index d6518a1..dc930c5 100644
--- a/security/check.php
+++ b/security/check.php
@@ -28,9 +28,8 @@
 EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
-define('SCRIPT_PATH', dirname($_SERVER["SCRIPT_FILENAME"]));
-require SCRIPT_PATH."/lib/config.inc.php";
-require SCRIPT_PATH."/lib/app.inc.php";
+require "/usr/local/ispconfig/server/lib/config.inc.php";
+require "/usr/local/ispconfig/server/lib/app.inc.php";
 
 set_time_limit(0);
 ini_set('error_reporting', E_ALL & ~E_NOTICE);
@@ -42,6 +41,114 @@
 // Load required base-classes
 $app->uses('ini_parser,file,services,getconf,system');
 
+// get security config
+$security_config = $app->getconf->get_security_config('systemcheck');
+
+$alert = '';
+$data_dir = '/usr/local/ispconfig/security/data';
+
+
+// Check if a new ispconfig user has been added
+if($security_config['warn_new_admin'] == 'yes') {
+	$data_file = $data_dir.'/admincount';
+	//get number of admins
+	$tmp = $app->db->queryOneRecord("SELECT count(userid) AS number FROM sys_user WHERE typ = 'admin'");
+	$admin_user_count_new = intval($tmp['number']);
+	
+	if(is_file($data_file)) {
+		$admin_user_count_old = intval(file_get_contents($data_file));
+		if($admin_user_count_new != $admin_user_count_old) {
+			$alert .= "The number of ISPConfig administrator users has changed. Old: $admin_user_count_old New: $admin_user_count_new \n";
+			file_put_contents($data_file,$admin_user_count_new);
+		}
+	} else {
+		// first run, so we save the current count
+		file_put_contents($data_file,$admin_user_count_new);
+		chmod($data_file,0700);
+	}
+}
+
+// Check if /etc/passwd file has been changed
+if($security_config['warn_passwd_change'] == 'yes') {
+	$data_file = $data_dir.'/passwd.md5';
+	$md5sum_new = md5_file('/etc/passwd');
+	
+	if(is_file($data_file)) {
+		$md5sum_old = trim(file_get_contents($data_file));
+		if($md5sum_new != $md5sum_old) {
+			$alert .= "The file /etc/passwd has been changed.\n";
+			file_put_contents($data_file,$md5sum_new);
+		}
+	} else {
+		file_put_contents($data_file,$md5sum_new);
+		chmod($data_file,0700);
+	}
+}
+
+// Check if /etc/shadow file has been changed
+if($security_config['warn_shadow_change'] == 'yes') {
+	$data_file = $data_dir.'/shadow.md5';
+	$md5sum_new = md5_file('/etc/shadow');
+	
+	if(is_file($data_file)) {
+		$md5sum_old = trim(file_get_contents($data_file));
+		if($md5sum_new != $md5sum_old) {
+			$alert .= "The file /etc/shadow has been changed.\n";
+			file_put_contents($data_file,$md5sum_new);
+		}
+	} else {
+		file_put_contents($data_file,$md5sum_new);
+		chmod($data_file,0700);
+	}
+}
+
+// Check if /etc/group file has been changed
+if($security_config['warn_group_change'] == 'yes') {
+	$data_file = $data_dir.'/group.md5';
+	$md5sum_new = md5_file('/etc/group');
+	
+	if(is_file($data_file)) {
+		$md5sum_old = trim(file_get_contents($data_file));
+		if($md5sum_new != $md5sum_old) {
+			$alert .= "The file /etc/group has been changed.\n";
+			file_put_contents($data_file,$md5sum_new);
+		}
+	} else {
+		file_put_contents($data_file,$md5sum_new);
+		chmod($data_file,0700);
+	}
+}
+
+
+if($alert != '') {
+	$admin_email = $security_config['security_admin_email'];
+	$admin_email_subject = $security_config['security_admin_email_subject'];
+	mail($admin_email, $admin_email_subject, $alert);
+	//$app->log(str_replace("\n"," -- ",$alert),1);
+	echo str_replace("\n"," -- ",$alert)."\n";
+}
+
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+
 
 
 ?>
\ No newline at end of file

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