X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=libs%2Flib_detector.php;h=3511de9896a5d03023dd82d99a9ffc08765c17bb;hb=e228af3f11a51cd76dc45d5f194eb801e9c95864;hp=b2a48f0dff3d14cae11abd01b919f671feadd174;hpb=d74e7f1eaddd1bc5d3dd4daf67f337fe33d98d91;p=ctracker.git

diff --git a/libs/lib_detector.php b/libs/lib_detector.php
index b2a48f0..3511de9 100644
--- a/libs/lib_detector.php
+++ b/libs/lib_detector.php
@@ -35,49 +35,117 @@ function initCrackerTrackerArrays () {
 
 	// Whitelist some absolute query strings (see below)
 	$GLOBALS['ctracker_whitelist'] = array(
-		'cmd=new',   // LinPHA
-		'cmd=edit',  // LinPHA
-		'cmd=lostpw' // LinPHA
+		'cmd=new',          // LinPHA
+		'cmd=edit',         // LinPHA
+		'cmd=lostpw',       // LinPHA
+		'secure_session=1', // Mantis Bug Tracker
 	);
 
 	// Attacks we should detect and block
 	$GLOBALS['ctracker_get_blacklist'] = array(
-		'chr(', 'chr=', 'chr%20', '%20chr', 'wget%20', '%20wget', 'wget(',
-		'cmd=', '%20cmd', 'cmd%20', 'rush=', '%20rush', 'rush%20',
-		'union%20', '%20union', 'union(', 'union=', 'echr(', '%20echr', 'echr%20', 'echr=',
-		'esystem(', 'esystem%20', 'cp%20', '%20cp', 'cp(', 'mdir%20', '%20mdir', 'mdir(',
-		'mcd%20', 'mrd%20', 'rm%20', '%20mcd', '%20mrd', '%20rm',
-		'mcd(', 'mrd(', 'rm(', 'mcd=', 'mrd=', 'mv%20', 'rmdir%20', 'mv(', 'rmdir(',
-		'chmod(', 'chmod%20', '%20chmod', 'chmod(', 'chmod=', 'chown%20', 'chgrp%20', 'chown(', 'chgrp(',
-		'locate%20', 'grep%20', 'locate(', 'grep(', 'diff%20', 'kill%20', 'kill(', 'killall',
-		'passwd%20', '%20passwd', 'passwd(', 'telnet%20', 'vi(', 'vi%20', 'cgi-', '.eml',
-		'insert%20into', 'select%20', 'nigga(', '%20nigga', 'nigga%20', 'fopen', 'fwrite', '%20like', 'like%20',
-		'$_request', '$_get', '$request', '$get', '.system', 'HTTP_PHP', '&aim', '%20getenv', 'getenv%20',
-		'new_password', '&icq','/etc/passwd','/etc/shadow', '/etc/groups', '/etc/gshadow',
-		'HTTP_USER_AGENT', 'HTTP_HOST', 'wget%20', 'uname\x20-', 'uname%20-', 'bin/id', '/bin/', '/chgrp',
-		'/chown', '/usr/bin', 'g\+\+', 'bin/python', 'bin/tclsh', 'bin/nasm', 'perl%20', 'traceroute%20',
-		'ping%20', '.pl', 'bin/xterm', 'lsof%20', '.conf', 'motd%20', 'HTTP/1.', '.inc.php', '.lib.php',
-		'config.php', 'file\://', 'window.open', '<SCRIPT>', 'javascript\://', 'img src', 'img%20src', '.jsp',
-		'ftp.exe', 'xp_enumdsn', 'xp_availablemedia', 'xp_filelist', 'xp_cmdshell', 'nc.exe', '.htpasswd',
-		'servlet', '/etc/passwd', 'wwwacl', '~root', '~ftp', '.js', '.jsp', '.history', 'bash_history',
-		'.bash_history', '~nobody', 'server-info', 'server-status', 'reboot%20', 'halt%20',
-		'powerdown%20', '/home/ftp', '/home/www', 'secure_site, ok', 'chunked', 'org.apache', '/servlet/con',
-		'<script', '/robot.txt' ,'/perl' ,'mod_gzip_status', 'db_mysql.inc', '.inc', 'select%20from',
-		'select from', 'drop%20', '.system', 'getenv', 'http_', '_php', 'php_', 'phpinfo()', '\<?php', '?\>', 'sql=',
-		'div style=', 'overflow: auto', 'height: 1px', 'cc%20', 'admin_action=', 'path=', 'action=http',
-		'page=http', 'module=http', 'op=http', 'id=http', 'id%3Dhttp', 'action%3Dhttp', 'page%3Dhttp',
-		'module%3Dhttp', 'op%3Dhttp', 'starhack', '../../','..//', 'directory=http', 'dir=http', 'busca',
-		'uol.com', '=http://', '=https://','=ftp://','=file://','_SESSION','CFG_ROOT','/proc/', ',0x', '(0x',
-		'=%7BQUOT%7D', '=%5C', 'DOCUMENT_ROOT', '_SERVER'
+		// SQL injections
+		'union ', ' union', 'insert ',
+		'select ', ' like', 'like ', 'drop ', 'update ',
+		'union(', 'union=',
+
+		// $GLOBAL/$_SERVER array elements
+		'HTTP_USER_AGENT', 'HTTP_HOST', 'HTTP_PHP', '_SESSION','CFG_ROOT',
+		'DOCUMENT_ROOT', '_SERVER',
+
+		// Sensitive files
+		'/environ', 'etc/shadow', 'etc/gshadow', 'etc/passwd', 'etc/group',
+		'etc/./shadow', 'etc/./gshadow', 'etc/./passwd', 'etc/./group',
+		'.htaccess', '.htpasswd', '.htgroup', '.history', 'bash_history',
+		'bashrc',
+
+		// Other Linux/FreeBSD/??? programs (sometimes with space)
+		'traceroute ', 'ping ', 'bin/xterm', 'bin/./xterm', 'lsof ',
+		'telnet ', 'wget ', 'bin/id', 'uname\x20', 'uname ', 'killall',
+		'diff ', 'kill ', 'locate ', 'grep ', 'vi ', 'mv ',
+		'rmdir ', 'mcd ', 'mrd ', 'rm ', ' mcd', ' mrd', ' rm',
+		'passwd ', ' passwd', 'mdir ', ' mdir', 'cp ', ' cp',
+		'esystem ', 'chr ', ' chr', 'wget ', ' wget', ' cmd',
+		'cmd ', ' rush', 'rush ', ' echr', 'echr ', ' getenv',
+		'getenv', 'reboot ', 'halt ', 'powerdown ',
+
+		// Other Linux programs (+ brace)
+		'locate(', 'grep(', 'kill(', 'mcd(', 'mrd(', 'rm(', 'mv(', 'rmdir(',
+		'chmod(', 'chmod(', 'chown(', 'chgrp(', 'passwd(', 'vi(', 'cp(',
+		'mdir(', 'esystem(', 'chr(', 'wget(', 'rush(', 'echr(',
+
+		// Other Linux programs (+ equal)
+		'mcd=', 'mrd=', 'chmod=', 'chr=', 'rush=', 'echr=',
+
+		// Paths
+		'/etc/', '/bin/', '/sbin/', '/self/', '/proc/', '../../','..//', '././',
+		'/home/ftp', '/home/./ftp', '/home/./www', '/home/www', '/www/virtual/',
+		'/www/./virtual/',
+
+		// Uni* commands:
+		'/chgrp', '/chown', '/chmod', 'chown ', 'chmod ', 'chgrp ',
+
+		// Compiler/interpreter
+		'g++ ', 'c++ ', 'cc ', 'bin/./python', 'bin/python', 'bin/tclsh',
+		'bin/./tclsh', 'bin/nasm', 'bin/./nasm', '/perl', 'perl ', 'cmd.exe',
+		'nc.exe', 'ftp.exe',
+
+		// PHP commands/scripts
+		'fopen', 'fwrite', 'phpinfo()', '\<?', '?\>',
+
+		// Typical PHP script remote-inclusions and typical include file names
+		'.inc.php', '.lib.php', '.class.php', 'config.php', '.inc', '_php',
+		'php_', 'class_', '_class.php', 'db_mysql.inc',
+
+		// Generic remote inclusion
+		'=http://', '=https://',
+		'path=', 'sql=',
+		'=%7BQUOT%7D', '=%5C', '=%22http','=%22ftp','=%22file','=%27http','=%27ftp',
+		'=%27file',
+
+		// Wrappers
+		'data://', 'tcp://', 'udp://', 'raw://', 'javascript://', 'file://', 'ftp://',
+
+		// Blocked "users"
+		'nigga(', ' nigga', 'nigga ', 'starhack', 'busca',
+
+		// Hidden HTML stuff
+		' style=', 'style =',
+		'overflow:auto', 'overflow: auto',
+		'overflow :auto', 'overflow : auto',
+		'display:hidden', 'display: hidden',
+		'display :hidden', 'display : hidden',
+		'height:0px', 'height: 0px','height:1px', 'height: 1px',
+		'width:0px', 'width: 0px','width:1px', 'width: 1px',
+
+		// Uncommon user websites
+		'~root', '~ftp', '~nobody',
+
+		// Windows XP (?) hacks
+		'xp_enumdsn', 'xp_availablemedia', 'xp_filelist', 'xp_cmdshell',
+
+		// Attempts to insert links into a badly secured URL
+		'%3E%3C',
+
+		// php.ini settings
+		'allow_url_fopen', 'allow_url_include', 'auto_prepend_file', 'disable_functions',
+
+		// @TODO Misc/unsorted
+		'cgi-', '.eml', '$_request', '$_get', '$request', '$get', '.system',
+		'&aim', 'new_password', '&icq', '.conf', 'motd ', 'HTTP/1.',
+		'window.open', 'img src', 'img src', '.jsp', 'servlet',
+		'wwwacl', '.js', '.jsp', 'server-info', 'server-status',
+		'secure_site, ok', 'chunked', 'org.apache', '/servlet/con',
+		'<script', 'mod_gzip_status', '.system', 'http_',
+		'uol.com', ',0x', '(0x',
 	);
 
 	// Block these words found in POST requests
 	$GLOBALS['ctracker_post_blacklist'] = array(
 		// This line is for detecting hidden link spam in wikis, forums, guestbooks, etc.
-		'div style=', 'overflow:auto', 'height:1px', 'width:1px', 'display:hidden',
-		// "Common" login name from VHCS exploiters ;-)
-		'starhack', 'DeLiMehmet', 'hisset', 'Hisset', 'delimert', 'MecTruy',
-		'busca'
+		' style=', 'overflow:auto', 'height:1px', 'width:1px', 'display:hidden', 'style.display',
+
+		// "Common" login names from VHCS exploiters ;-)
+		'starhack', 'DeLiMehmet', 'hisset', 'Hisset', 'delimert', 'MecTruy'
 	);
 
 	// Load email header
@@ -92,7 +160,7 @@ function initCrackerTrackerArrays () {
 // Checks for worms
 function isCrackerTrackerWormDetected () {
 	// Check against the whole list
-	$GLOBALS['ctracker_checkworm'] = str_replace($GLOBALS['ctracker_get_blacklist'], '*', crackerTrackerQueryString());
+	$GLOBALS['ctracker_checkworm'] = urldecode(str_ireplace($GLOBALS['ctracker_get_blacklist'], '*', crackerTrackerQueryString()));
 
 	// If it differs to original and the *whole* request string is not in whitelist
 	// then blog the attempt
@@ -102,10 +170,10 @@ function isCrackerTrackerWormDetected () {
 // Checks POST data
 function isCrackerTrackerPostAttackDetected () {
 	// Implode recursive the whole $_POST array
-	$GLOBALS['ctracker_post_track'] = implode_r('', $_POST);
+	$GLOBALS['ctracker_post_track'] = urldecode(implode_r('', $_POST));
 
 	// Check for suspicious POST data
-	$GLOBALS['ctracker_check_post'] = str_replace($GLOBALS['ctracker_post_blacklist'], '*', $GLOBALS['ctracker_post_track']);
+	$GLOBALS['ctracker_check_post'] = str_ireplace($GLOBALS['ctracker_post_blacklist'], '*', $GLOBALS['ctracker_post_track']);
 
 	// Is it detected?
 	return ((isCrackerTrackerWormDetected()) || ($GLOBALS['ctracker_check_post'] != $GLOBALS['ctracker_post_track']));
@@ -117,17 +185,17 @@ function sendCrackerTrackerMail () {
 	crackerTrackerLogAttack();
 
 	// Mail content
-	$mail = "Attack detected:
+	$mail = 'Attack detected:
 -----------------------------------------------------
-Remote-IP       : ".determineCrackerTrackerRealRemoteAddress()."
-User-Agent      : ".crackerTrackerUserAgent()."
-Request-string  : ".crackerTrackerQueryString()."
-Filtered string : ".$GLOBALS['ctracker_checkworm']."
-Server          : ".crackerTrackerServerName()."
-Script          : ".crackerTrackerScriptName()."
-Referrer        : ".crackerTrackerReferer()."
+Remote-IP       : ' . determineCrackerTrackerRealRemoteAddress() . '
+User-Agent      : ' . crackerTrackerUserAgent() . '
+Request-string  : ' . crackerTrackerQueryString() . '
+Filtered string : ' . $GLOBALS['ctracker_checkworm'] . '
+Server          : ' . crackerTrackerServerName() . '
+Script          : ' . crackerTrackerScriptName() . '
+Referrer        : ' . crackerTrackerReferer() . '
 -----------------------------------------------------
-";
+';
 
 	// Send it out
 	crackerTrackerSendMail($mail);
@@ -148,14 +216,15 @@ function sendCrackerTrackerTicketMails () {
 	$mail = crackerTrackerLoadEmailTemplate('webmaster_add_ticket', $GLOBALS['ctracker_last_ticket'], getCrackerTrackerConfig('ctracker_language'));
 
 	// Send email to the user
-	crackerTrackerSendMail($mail, null, getCrackerTrackerLocalized('webmaster_add_ticket_subject'));
+	crackerTrackerSendMail($mail, NULL, getCrackerTrackerLocalized('webmaster_add_ticket_subject'));
 }
 
 // Sends a mail out
-function crackerTrackerSendMail ($mail, $recipient = null, $subject = null) {
+function crackerTrackerSendMail ($mail, $recipient = NULL, $subject = NULL) {
 	// Construct dummy array
 	$rowData = array(
 		'remote_addr' => determineCrackerTrackerRealRemoteAddress(),
+		'proxy_addr'  => getenv('REMOTE_ADDR'),
 		'check_worm'  => $GLOBALS['ctracker_checkworm'],
 		'server_name' => crackerTrackerServerName()
 	);
@@ -168,7 +237,7 @@ function crackerTrackerSendMail ($mail, $recipient = null, $subject = null) {
 			print 'Recipient=' . $recipient . '<br />Subject=' . $subject . '<br />Text=<pre>' . $mail . '</pre>';
 
 			// All fine
-			return true;
+			return TRUE;
 		} elseif (!is_null($recipient)) {
 			// Recipient specified
 			return mail($recipient, $subject, $mail, $GLOBALS['ctracker_header']);
@@ -184,7 +253,7 @@ function crackerTrackerSendMail ($mail, $recipient = null, $subject = null) {
 		print 'Recipient=' . $recipient . '<br />Subject=' . $subject . '<br />Text=<pre>' . $mail . '</pre>';
 
 		// All fine
-		return true;
+		return TRUE;
 	}
 }
 
@@ -194,20 +263,20 @@ function sendCrackerTrackerPostMail () {
 	crackerTrackerLogAttack();
 
 	// Mail text
-	$mail = "POST-Attack detected:
+	$mail = 'POST-Attack detected:
 -----------------------------------------------------
-Remote-IP            : ".determineCrackerTrackerRealRemoteAddress()."
-User-Agent           : ".crackerTrackerUserAgent()."
-Request-string       : ".crackerTrackerQueryString()."
-Filtered string      : ".$GLOBALS['ctracker_checkworm']."
-Server               : ".crackerTrackerServerName()."
-Script               : ".crackerTrackerScriptName()."
-Referrer             : ".crackerTrackerReferer()."
+Remote-IP            : '.determineCrackerTrackerRealRemoteAddress().'
+User-Agent           : '.crackerTrackerUserAgent().'
+Request-string       : '.crackerTrackerQueryString().'
+Filtered string      : '.$GLOBALS['ctracker_checkworm'].'
+Server               : '.crackerTrackerServerName().'
+Script               : '.crackerTrackerScriptName().'
+Referrer             : '.crackerTrackerReferer().'
 -----------------------------------------------------
-POST string          : ".$GLOBALS['ctracker_post_track']."
-Filtered POST string : ".$GLOBALS['ctracker_check_post']."
+POST string          : '.$GLOBALS['ctracker_post_track'].'
+Filtered POST string : '.$GLOBALS['ctracker_check_post'].'
 -----------------------------------------------------
-";
+';
 
 	// Send it out
 	crackerTrackerSendMail($mail);
@@ -256,6 +325,7 @@ function crackerTrackerLogAttack () {
 	// Prepare array for database insert
 	$rowData = array(
 		'remote_addr'   => determineCrackerTrackerRealRemoteAddress(),
+		'proxy_addr'    => getenv('REMOTE_ADDR'),
 		'user_agent'    => crackerTrackerUserAgent(),
 		'get_data'      => crackerTrackerQueryString(),
 		'post_data'     => $GLOBALS['ctracker_post_track'],