From 6ccc2ac44dc49125b8fc60872c024f944a32a5e6 Mon Sep 17 00:00:00 2001
From: tbrehm <t.brehm@ispconfig.org>
Date: Mon, 24 Jun 2013 05:39:27 -0400
Subject: [PATCH] Extended FTP user path checks.

---
 interface/lib/classes/validate_ftpuser.inc.php |    7 +++++--
 interface/web/sites/ftp_user_edit.php          |   17 +++++++++++++++++
 2 files changed, 22 insertions(+), 2 deletions(-)

diff --git a/interface/lib/classes/validate_ftpuser.inc.php b/interface/lib/classes/validate_ftpuser.inc.php
index 0682650..60768a3 100644
--- a/interface/lib/classes/validate_ftpuser.inc.php
+++ b/interface/lib/classes/validate_ftpuser.inc.php
@@ -47,7 +47,7 @@
         
         
         $ftp_data = $app->db->queryOneRecord("SELECT parent_domain_id FROM ftp_user WHERE ftp_user_id = '".$app->db->quote($app->tform->primary_id)."'");
-        if(!$ftp_data["parent_domain_id"]) {
+        if(!is_array($ftp_data) || $ftp_data["parent_domain_id"] < 1) {
             $errmsg = $validator['errmsg'];
             if(isset($app->tform->wordbook[$errmsg])) {
                 return $app->tform->wordbook[$errmsg]."<br>\r\n";
@@ -57,7 +57,7 @@
         }
         
         $domain_data = $app->db->queryOneRecord("SELECT domain_id, document_root FROM web_domain WHERE domain_id = '".$app->db->quote($ftp_data["parent_domain_id"])."'");
-        if(!$domain_data["domain_id"]) {
+        if(!is_array($domain_data) || $domain_data["domain_id"] < 1) {
             $errmsg = $validator['errmsg'];
             if(isset($app->tform->wordbook[$errmsg])) {
                 return $app->tform->wordbook[$errmsg]."<br>\r\n";
@@ -75,6 +75,9 @@
 		
 		if(stristr($field_value,'..') or stristr($field_value,'./') or stristr($field_value,'/.')) $is_ok = false;
         
+		//* Final check if docroot path of website is >= 5 chars
+		if(strlen($doc_root) < 5) $is_ok = false;
+		
         if($is_ok == false) {
             $errmsg = $validator['errmsg'];
             if(isset($app->tform->wordbook[$errmsg])) {
diff --git a/interface/web/sites/ftp_user_edit.php b/interface/web/sites/ftp_user_edit.php
index 455d126..798233d 100644
--- a/interface/web/sites/ftp_user_edit.php
+++ b/interface/web/sites/ftp_user_edit.php
@@ -177,6 +177,23 @@
 			$app->db->query($sql);
 		}
 		
+		//* 2. check to ensure that the FTP user path is not changed to a path outside of the docroot by a normal user
+		if(isset($this->dataRecord['dir']) && $this->dataRecord['dir'] != $this->oldDataRecord['dir'] && !$app->auth->is_admin()) {
+			$vd = new validate_ftpuser;
+			$error_message = $vd->ftp_dir('dir', $this->dataRecord['dir'], '');
+			//* This check should normally never be triggered
+			//* Set the path to a safe path (web doc root).
+			if($error_message != '') {
+				$ftp_data = $app->db->queryOneRecord("SELECT parent_domain_id FROM ftp_user WHERE ftp_user_id = '".$app->db->quote($app->tform->primary_id)."'");
+				$web = $app->db->queryOneRecord("SELECT * FROM web_domain WHERE domain_id = ".$app->functions->intval($ftp_data["parent_domain_id"]));
+				$dir = $web["document_root"];
+				$sql = "UPDATE ftp_user SET dir = '$dir' WHERE ftp_user_id = ".$this->id;
+				$app->db->query($sql);
+				$app->log("Error in FTP path settings of FTP user ".$this->dataRecord['username'], 1);
+			}
+			
+		}
+		
 	}
 }
 

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