MyBulletinBoard Cross Site Scripting and Security Bypass Issues


Description   Multiple vulnerabilities were identified in MyBulletinBoard, which could be exploited by malicious users to bypass security restrictions or conduct cross site scripting and denial of service attacks.
The first issue is due to an input validation error when processing a specially crafted "subject" passed to a new thread, which may be exploited by attackers to cause arbitrary scripting code to be executed by the user's browser.
The second flaw is due to an input validation error in the Repuration system when processing specially crafted parameters, which may be exploited by attackers to cause arbitrary scripting code to be executed by the user's browser via the configuration panel (UserCP).
The third vulnerability is due to an input validation error when deleting and/or moving private messages (PM), which could be exploited by attackers to delete/move other users' private messages.
The fourth issue is due to an unspecified error that could be exploited by attackers to cause a denial of service.
     
Vulnerable Products   Vulnerable Software:
MyBulletinBoard (MyBB) PR2 (Revision 686 / 1st November 2005) and prior
     
Solution   Upgrade to version 1.0 : http://www.mybboard.com/downloads.php
     
CVE   CVE-2005-3778
CVE-2005-3777
CVE-2005-3776
     
References   http://www.frsirt.com/english/reference/748
     
Vulnerability Manager Detection   No
     
IPS Protection  
ASQ Engine alarm Available Since
XSS - Prevention - GET : suspicious 'iframe' tag found in URL
3.2.0
XSS - Prevention - POST : suspicious tag with event found in data
3.2.0
XSS - Prevention - GET : suspicious tag with event found in URL
3.2.0
XSS - Prevention - GET : javascript code in flash clickTAG parameter
3.2.0
XSS - Prevention - POST : suspicious 'object' tag found in data
3.2.0
XSS - Prevention - GET : suspicious 'applet' tag found in URL
3.2.0
XSS - Prevention - POST : suspicious 'applet' tag found in data
3.2.0
XSS - Prevention - POST : 'location' javascript object found in data
3.2.0
XSS - Phishing : suspicious 'div' tag found in URL
3.2.0
XSS - Prevention - GET : suspicious 'style' attribute found in URL
3.2.0
XSS - Prevention - POST : javascript code found in data
3.2.0
XSS - Prevention - POST : suspicious 'iframe' tag found in data
3.2.0
XSS - Prevention - POST : code allowing cookie access found in data
3.2.0
XSS - Phishing : suspicious 'a' tag found in URL
3.2.0
XSS - Prevention - GET : cookie access attempt using script language found in URL
3.2.0
XSS - Prevention - GET : suspicious 'embed' tag found in URL
3.2.0
XSS - Prevention - GET : suspicious 'object' tag found in URL
3.2.0
XSS - Phishing : suspicious 'form' tag found in URL
3.2.0
XSS - Prevention - POST : suspicious 'embed' tag found in data
3.2.0
XSS - Prevention - POST : suspicious 'style' tag found in data
3.2.0
XSS - Prevention - GET : javascript code found in URL
3.2.0
XSS - Prevention - GET : 'script' tag in flash clickTAG parameter
3.2.0
XSS - Prevention - POST : suspicious 'div' tag found in data
3.2.0
XSS - Prevention - GET : evasion attempt using tag characters encoding in URL
3.2.0
XSS - Prevention - GET : suspicious 'style' tag found in URL
3.2.0
XSS - Phishing : suspicious 'link' tag found in URL
3.2.0
XSS - Prevention - GET : 'script' tag found in URL
3.2.0
XSS - Prevention - POST : 'script' tag found in data
3.2.0
XSS - Prevention - POST : suspicious 'style' attribute found in data
3.2.0
XSS - Prevention - GET : 'location' javascript object found in URL
3.2.0
XSS - Prevention - GET : suspicious 'div' tag found in URL
3.2.0
     


 
 
 
 
 Risk level 
Low 

 Vulnerability First Public Report Date 
2005-11-15 

 Target Type 
Server 

 Possible exploit 
Local & Remote