MHonArc Cross Site Scripting and Denial of Service Vulnerabilities


Description   Two vulnerabilities have been identified in MHonArc, which could be exploited by attackers to cause a denial of service or inject scripting code.
The first issue is caused by an input validation error in the "mhtxthtml.pl" script when handling certain HTML sequences, which could be exploited to conduct cross site scripting attacks.
The second vulnerability is caused by an error when processing malformed and nested HTML tags, which could be exploited to crash an affected application.
     
Vulnerable Products   Vulnerable Software:
MHonArc version 2.6.16 and prior
     
Solution   Upgrade to MHonArc Snapshot 2010-12-30 : http://www.mhonarc.org/release/MHonArc/dist/
     
CVE   CVE-2010-4524
CVE-2010-1677
     
References   http://www.mail-archive.com/mhonarc-dev@mhonarc.org/msg01297.html
http://www.mail-archive.com/mhonarc-dev@mhonarc.org/msg01296.html
http://permalink.gmane.org/gmane.comp.security.oss.general/3998
     
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 - 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 - 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 
2010-12-31 

 Target Type 
Client 

 Possible exploit 
Local & Remote