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Forescout NAC (Network Access Control) multiple vulnerabilities
From: "Joseph Sheridan" <joe () reactionis com>
Date: Mon, 26 Nov 2012 16:31:12 -0000

Forescout NAC (Network Access Control) multiple vulnerabilities:



Forescout NAC 6.3.4.1 Cross-Site Redirection Vulnerability (CVE-2012-4982)

The Forescout NAC device is vulnerable to cross-site redirection and could be used to redirect a targetted victim to a 
malicious site. The 'a' parameter is vulnerable on the 'login' page. See below for details: 

http://(NACIP)/assets/login?a=http://www.evil.com

Forescout NAC 6.3.4.1 Cross-Site Scripting Vulnerability (CVE-2012-4983)

The Forescout NAC device is vulnerable to two cross-site scripting issues and could be used to redirect a targetted 
victim to a malicious site or gain access to the NAC admin console. The 'a' parameter is vulnerable on the 'login' page 
and the search page 'rangesearch' is vulnerable to authenticated users. See below for details: 

Login page:
http://(NACIP)/assets/login?a=asdf" onload="alert(123)">

Search field (needs authenticated user):
http://(NACIP)/assets/rangesearch?fromIndex=0&query=asdf" onclick="alert(123)"&main_selection=all


Forescout NAC ICMP and ARP Protocols Not Filtered Vulnerability Advisory (CVE-2012-4985)

Forescout NAC (Network Access Control) device is vulnerable to ICMP and ARP protocol filter bypass. The NAC does not 
filter traffic from unknown clients over these protocols. An attacker with an unauthorised device can engage ARP 
poisoning attacks and potentially gain access to cleartext login credentials traversing the network (where cleartext 
protocols are employed). The attacker could then use these credentials via an authorised terminal/workstation to gain 
full access to the network.

http://www.reactionpenetrationtesting.co.uk/forescout-cross-site-redirection.html
http://www.reactionpenetrationtesting.co.uk/forescout-nac-xss.html
http://www.reactionpenetrationtesting.co.uk/forescout-nac-icmp-arp.html 




Best regards,

Joe

Joseph Sheridan
Director
CHECK Team Leader, CREST Infrastructure, CREST Application, CISSP
Tel: 07812052515
Web: www.reactionis.co.uk 
Email: joe () reactionis co uk
 
Reaction Information Security Limited.
Registered in England No: 6929383
Registered Office: 1, The Mews, 69 New Dover Road, Canterbury, CT1 3DZ
 
This email and any files transmitted with it are confidential and are intended solely for the use of the individual to 
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Joseph Sheridan
Director
CHECK Team Leader, CREST Infrastructure, CREST Application, CISSP
Tel: 07812052515
Web: www.reactionis.co.uk 
Email: joe () reactionis co uk

Reaction Information Security Limited.
Registered in England No: 6929383
Registered Office: 1, The Mews, 69 New Dover Road, Canterbury, CT1 3DZ
 
This email and any files transmitted with it are confidential and are intended solely for the use of the individual to 
whom they are addressed. If you are not the intended recipient please notify the sender. Any unauthorised dissemination 
or copying of this email or its attachments and any use or disclosure of any information contained in them, is strictly 
prohibited.

 Please consider the environment before printing this email




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