Issues (2473)

Branch: master

Security Analysis    no vulnerabilities found

This project does not seem to handle request data directly as such no vulnerable execution paths were found.

  Cross-Site Scripting
Cross-Site Scripting enables an attacker to inject code into the response of a web-request that is viewed by other users. It can for example be used to bypass access controls, or even to take over other users' accounts.
  File Exposure
File Exposure allows an attacker to gain access to local files that he should not be able to access. These files can for example include database credentials, or other configuration files.
  File Manipulation
File Manipulation enables an attacker to write custom data to files. This potentially leads to injection of arbitrary code on the server.
  Object Injection
Object Injection enables an attacker to inject an object into PHP code, and can lead to arbitrary code execution, file exposure, or file manipulation attacks.
  Code Injection
Code Injection enables an attacker to execute arbitrary code on the server.
  Response Splitting
Response Splitting can be used to send arbitrary responses.
  File Inclusion
File Inclusion enables an attacker to inject custom files into PHP's file loading mechanism, either explicitly passed to include, or for example via PHP's auto-loading mechanism.
  Command Injection
Command Injection enables an attacker to inject a shell command that is execute with the privileges of the web-server. This can be used to expose sensitive data, or gain access of your server.
  SQL Injection
SQL Injection enables an attacker to execute arbitrary SQL code on your database server gaining access to user data, or manipulating user data.
  XPath Injection
XPath Injection enables an attacker to modify the parts of XML document that are read. If that XML document is for example used for authentication, this can lead to further vulnerabilities similar to SQL Injection.
  LDAP Injection
LDAP Injection enables an attacker to inject LDAP statements potentially granting permission to run unauthorized queries, or modify content inside the LDAP tree.
  Header Injection
  Other Vulnerability
This category comprises other attack vectors such as manipulating the PHP runtime, loading custom extensions, freezing the runtime, or similar.
  Regex Injection
Regex Injection enables an attacker to execute arbitrary code in your PHP process.
  XML Injection
XML Injection enables an attacker to read files on your local filesystem including configuration files, or can be abused to freeze your web-server process.
  Variable Injection
Variable Injection enables an attacker to overwrite program variables with custom data, and can lead to further vulnerabilities.
Unfortunately, the security analysis is currently not available for your project. If you are a non-commercial open-source project, please contact support to gain access.

mod/etherpad/start.php (7 issues)

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1
<?php
2
/**
3
 * Elgg Etherpad lite plugin
4
 *
5
 * @package etherpad
6
 */
7
 
8
elgg_register_event_handler('init', 'system', 'etherpad_init');
9
10
11
function etherpad_init() {
12
	
13
	$actions_base = elgg_get_plugins_path() . 'etherpad/actions/docs';
14
	elgg_register_action("docs/save", "$actions_base/save.php");
15
	elgg_register_action("docs/delete", "$actions_base/delete.php");
16
	
17
	elgg_register_page_handler('docs', 'etherpad_page_handler');
18
	
19
	// Language short codes must be of the form "etherpad:key"
20
	// where key is the array key below
21
	elgg_set_config('etherpad', array(
22
		'title' => 'text',
23
		'tags' => 'tags',
24
		'access_id' => 'access',
25
		'write_access_id' => 'write_access',
26
	));
27
	
28
	elgg_register_plugin_hook_handler('register', 'menu:entity', 'etherpad_entity_menu');
29
	
30
	elgg_register_entity_type('object', 'etherpad', 'ElggPad');
0 ignored issues
show
The call to elgg_register_entity_type() has too many arguments starting with 'ElggPad'.

This check compares calls to functions or methods with their respective definitions. If the call has more arguments than are defined, it raises an issue.

If a function is defined several times with a different number of parameters, the check may pick up the wrong definition and report false positives. One codebase where this has been known to happen is Wordpress.

In this case you can add the @ignore PhpDoc annotation to the duplicate definition and it will be ignored.

Loading history...
31
	elgg_register_entity_type('object', 'subpad', 'ElggPad');
0 ignored issues
show
The call to elgg_register_entity_type() has too many arguments starting with 'ElggPad'.

This check compares calls to functions or methods with their respective definitions. If the call has more arguments than are defined, it raises an issue.

If a function is defined several times with a different number of parameters, the check may pick up the wrong definition and report false positives. One codebase where this has been known to happen is Wordpress.

In this case you can add the @ignore PhpDoc annotation to the duplicate definition and it will be ignored.

Loading history...
32
	
33
	// write permission plugin hooks
34
	elgg_register_plugin_hook_handler('permissions_check', 'object', 'etherpad_write_permission_check');
35
	elgg_register_plugin_hook_handler('container_permissions_check', 'object', 'etherpad_container_permission_check');
36
	
37
	//Widget
38
	elgg_register_widget_type('etherpad', elgg_echo('etherpad'), elgg_echo('etherpad:profile:widgetdesc'), array("dashboard", "profile", "groups"));
39
	
40
	// icon url override
41
	elgg_register_plugin_hook_handler('entity:icon:url', 'object', 'etherpad_icon_url_override');
42
	
43
	if(elgg_get_plugin_setting('integrate_in_pages', 'etherpad') != 'yes') {
44
		$item = new ElggMenuItem('etherpad', elgg_echo('etherpad'), 'docs/all');
45
		elgg_register_menu_item('site', $item);
46
		
47
		elgg_register_plugin_hook_handler('register', 'menu:owner_block', 'etherpad_owner_block_menu');
48
		
49
		// add to groups
50
		add_group_tool_option('etherpad', elgg_echo('groups:enablepads'), true);
51
		elgg_extend_view('groups/tool_latest', 'etherpad/group_module');
52
		
53
		// Register a URL handler for bookmarks
54
		elgg_register_entity_url_handler('object', 'etherpad', 'etherpad_url');
55
		elgg_register_entity_url_handler('object', 'subpad', 'etherpad_url');
56
	} else {
57
		// override pages library
58
		elgg_register_library('elgg:pages', elgg_get_plugins_path() . 'etherpad/lib/pages.php');
59
		
60
		elgg_register_page_handler('pages', 'etherpad_page_handler');
61
62
		// Register a URL handler for bookmarks
63
		elgg_register_entity_url_handler('object', 'etherpad', 'pages_url');
64
		elgg_register_entity_url_handler('object', 'subpad', 'pages_url');
65
	}
66
}
67
68
69
function etherpad_page_handler($page, $handler) {
70
	
71
	elgg_load_library('elgg:pages');
72
	
73
	if($handler == 'pages'){	
74
		// add the jquery treeview files for navigation
75
		elgg_load_js('jquery-treeview');
76
		elgg_load_css('jquery-treeview');
77
	}
78
79
	if (!isset($page[0])) {
80
		$page[0] = 'all';
81
	}
82
83
	elgg_push_breadcrumb(elgg_echo("etherpad:$handler"), "$handler/all");
84
	
85
	$base_dir = elgg_get_plugins_path() . "etherpad/pages/$handler";
86
87
	$page_type = $page[0];
88 View Code Duplication
	switch ($page_type) {
89
		case 'owner':
90
			include "$base_dir/owner.php";
91
			break;
92
		case 'friends':
93
			include "$base_dir/friends.php";
94
			break;
95
		case 'view':
96
			set_input('guid', $page[1]);
97
			include "$base_dir/view.php";
98
			break;
99
		case 'add':
100
			set_input('guid', $page[1]);
101
			include "$base_dir/new.php";
102
			break;
103
		case 'edit':
104
			set_input('guid', $page[1]);
105
			include "$base_dir/edit.php";
106
			break;
107
		case 'group':
108
			include "$base_dir/owner.php";
109
			break;
110
		case 'history':
111
			set_input('guid', $page[1]);
112
			include "$base_dir/history.php";
113
			break;
114
		case 'revision':
115
			set_input('id', $page[1]);
116
			include "$base_dir/revision.php";
117
			break;
118
		case 'all':
119
			include "$base_dir/world.php";
120
			break;
121
		default:
122
			return false;
123
	}
124
	return true;
125
}
126
127
/**
128
 * Add timeslider to entity menu
129
 */
130
function etherpad_entity_menu($hook, $type, $return, $params) {
131
	
132
	$entity = $params['entity'];
133
	
134
	if (elgg_in_context('widgets')) {
135
		return $return;
136
	}
137
	
138
	if(!in_array($entity->getSubtype(), array('etherpad', 'subpad'))){
139
		return $return;
140
	}
141
	
142
	// timeslider button, show only if pages integration is enabled.
143
	$handler = elgg_get_plugin_setting('integrate_in_pages', 'etherpad') == 'yes' ? 'pages' : 'docs';
144
	if($handler == 'pages') {
145
		$options = array(
146
			'name' => 'etherpad-timeslider',
147
			'text' => elgg_echo('etherpad:timeslider'),
148
			'href' => elgg_get_site_url() . "$handler/history/" . $entity->guid,
149
			'priority' => 200,
150
		);
151
	} else if(elgg_get_plugin_setting('show_fullscreen', 'etherpad') == 'yes'){
152
		// fullscreen button
153
		$entity = new ElggPad($entity->guid);
154
		$options = array(
155
			'name' => 'etherpadfs',
156
			'text' => elgg_echo('etherpad:fullscreen'),
157
			'href' => $entity->getPadPath(),
158
			'target' => '_blank',
159
			'priority' => 200,
160
		);
161
	} 
162
	$return[] = ElggMenuItem::factory($options);
0 ignored issues
show
The variable $options does not seem to be defined for all execution paths leading up to this point.

If you define a variable conditionally, it can happen that it is not defined for all execution paths.

Let’s take a look at an example:

function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    // $x is potentially undefined here.
    echo $x;
}

In the above example, the variable $x is defined if you pass “foo” or “bar” as argument for $a. However, since the switch statement has no default case statement, if you pass any other value, the variable $x would be undefined.

Available Fixes

  1. Check for existence of the variable explicitly:

    function myFunction($a) {
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
        }
    
        if (isset($x)) { // Make sure it's always set.
            echo $x;
        }
    }
    
  2. Define a default value for the variable:

    function myFunction($a) {
        $x = ''; // Set a default which gets overridden for certain paths.
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
        }
    
        echo $x;
    }
    
  3. Add a value for the missing path:

    function myFunction($a) {
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
    
            // We add support for the missing case.
            default:
                $x = '';
                break;
        }
    
        echo $x;
    }
    
Loading history...
163
164
	return $return;
165
}
166
167
/**
168
* Returns a more meaningful message
169
*
170
* @param unknown_type $hook
171
* @param unknown_type $entity_type
172
* @param unknown_type $returnvalue
173
* @param unknown_type $params
174
*/
175 View Code Duplication
function etherpad_notify_message($hook, $entity_type, $returnvalue, $params) {
176
	$entity = $params['entity'];
177
	$to_entity = $params['to_entity'];
178
	$method = $params['method'];
179
	if (($entity instanceof ElggEntity) && (($entity->getSubtype() == 'etherpad'))) {
180
		$descr = $entity->description;
181
		$title = $entity->title;
182
		//@todo why?
183
		$url = elgg_get_site_url() . "view/" . $entity->guid;
184
		$owner = $entity->getOwnerEntity();
185
		return $owner->name . ' ' . elgg_echo("pages:via") . ': ' . $title . "\n\n" . $descr . "\n\n" . $entity->getURL();
186
	}
187
	return null;
188
}
189
190
/**
191
 * Override the etherpad url
192
 * 
193
 * @param ElggObject $entity Pad object
194
 * @return string
195
 */
196
function etherpad_url($entity) {
197
	$title = elgg_get_friendly_title($entity->title);
198
	return "docs/view/$entity->guid/$title";
199
}
200
201
/**
202
 * Override the default entity icon for docs
203
 *
204
 * @return string Relative URL
205
 */
206 View Code Duplication
function etherpad_icon_url_override($hook, $type, $returnvalue, $params) {
207
	$entity = $params['entity'];
208
	if (elgg_instanceof($entity, 'object', 'etherpad') ||
209
		elgg_instanceof($entity, 'object', 'subpad')) {
210
		switch ($params['size']) {
211
			case 'small':
212
				return 'mod/etherpad/images/etherpad.png';
213
				break;
0 ignored issues
show
break is not strictly necessary here and could be removed.

The break statement is not necessary if it is preceded for example by a return statement:

switch ($x) {
    case 1:
        return 'foo';
        break; // This break is not necessary and can be left off.
}

If you would like to keep this construct to be consistent with other case statements, you can safely mark this issue as a false-positive.

Loading history...
214
			case 'medium':
215
				return 'mod/etherpad/images/etherpad_lrg.png';
216
				break;
0 ignored issues
show
break is not strictly necessary here and could be removed.

The break statement is not necessary if it is preceded for example by a return statement:

switch ($x) {
    case 1:
        return 'foo';
        break; // This break is not necessary and can be left off.
}

If you would like to keep this construct to be consistent with other case statements, you can safely mark this issue as a false-positive.

Loading history...
217
		}
218
	}
219
}
220
221
/**
222
 * Add a menu item to the user ownerblock
223
 */
224 View Code Duplication
function etherpad_owner_block_menu($hook, $type, $return, $params) {
225
	if (elgg_instanceof($params['entity'], 'user')) {
226
		$url = "docs/owner/{$params['entity']->username}";
227
		$item = new ElggMenuItem('etherpad', elgg_echo('etherpad'), $url);
228
		$return[] = $item;
229
	} else {
230
		if ($params['entity']->pages_enable != "no") {
231
			$url = "docs/group/{$params['entity']->guid}/all";
232
			$item = new ElggMenuItem('etherpad', elgg_echo('etherpad:group'), $url);
233
			$return[] = $item;
234
		}
235
	}
236
237
	return $return;
238
}
239
240
/**
241
 * Extend permissions checking to extend can-edit for write users.
242
 *
243
 * @param unknown_type $hook
244
 * @param unknown_type $entity_type
245
 * @param unknown_type $returnvalue
246
 * @param unknown_type $params
247
 */
248
function etherpad_write_permission_check($hook, $entity_type, $returnvalue, $params)
249
{
250
	if ($params['entity']->getSubtype() == 'etherpad' || $params['entity']->getSubtype() == 'subpad') {
251
252
		$write_permission = $params['entity']->write_access_id;
253
		$user = $params['user'];
254
255
		if( ($write_permission) && ($user) ){
256
			// $list = get_write_access_array($user->guid);
257
			$list = get_access_array($user->guid); // get_access_list($user->guid);
258
259
			if( ($write_permission!=0) && (in_array($write_permission,$list)) ){
260
				if( $params['entity'] instanceof ElggPad ) {
261
					return true;
262
				}
263
			}
264
		}
265
	}
266
}
267
268
/**
269
 * Extend container permissions checking to extend can_write_to_container for write users.
270
 *
271
 * @param unknown_type $hook
272
 * @param unknown_type $entity_type
273
 * @param unknown_type $returnvalue
274
 * @param unknown_type $params
275
 */
276 View Code Duplication
function etherpad_container_permission_check($hook, $entity_type, $returnvalue, $params) {
277
278
	if (elgg_get_context() == "etherpad") {
279
		if( elgg_get_page_owner_guid() ){
280
			if( can_write_to_container(elgg_get_logged_in_user_guid(), elgg_get_page_owner_guid()) ) return true;
281
		}
282
		if( $page_guid = get_input('page_guid',0) ){
283
			$entity = get_entity($page_guid);
284
		} else if ($parent_guid = get_input('parent_guid',0)) {
285
			$entity = get_entity($parent_guid);
286
		}
287
		if ($entity instanceof ElggObject) {
288
			if( can_write_to_container(elgg_get_logged_in_user_guid(), $entity->container_guid) || in_array($entity->write_access_id, get_access_list()) ){
0 ignored issues
show
The property write_access_id does not seem to exist. Did you mean access_id?

An attempt at access to an undefined property has been detected. This may either be a typographical error or the property has been renamed but there are still references to its old name.

If you really want to allow access to undefined properties, you can define magic methods to allow access. See the php core documentation on Overloading.

Loading history...
The variable $entity does not seem to be defined for all execution paths leading up to this point.

If you define a variable conditionally, it can happen that it is not defined for all execution paths.

Let’s take a look at an example:

function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    // $x is potentially undefined here.
    echo $x;
}

In the above example, the variable $x is defined if you pass “foo” or “bar” as argument for $a. However, since the switch statement has no default case statement, if you pass any other value, the variable $x would be undefined.

Available Fixes

  1. Check for existence of the variable explicitly:

    function myFunction($a) {
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
        }
    
        if (isset($x)) { // Make sure it's always set.
            echo $x;
        }
    }
    
  2. Define a default value for the variable:

    function myFunction($a) {
        $x = ''; // Set a default which gets overridden for certain paths.
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
        }
    
        echo $x;
    }
    
  3. Add a value for the missing path:

    function myFunction($a) {
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
    
            // We add support for the missing case.
            default:
                $x = '';
                break;
        }
    
        echo $x;
    }
    
Loading history...
289
				return true;
290
			}
291
		}
292
	}
293
294
}
295