DNS Poisoning via Port Exhaustion

[Roee Hay <roeeh () il ibm com>]

Hey,

Today we are releasing a very interesting whitepaper which describes a DNS
poisoning attack against stub resolvers.

It discloses two vulnerabilities:

1. A vulnerability in Java (CVE-2011-3552, CVE-2010-4448) which enables remote
   DNS poisoning using Java applets. This vulnerability can be triggered when
   opening a malicious webpage. A successful exploitation of this vulnerability
   may lead to disclosure and manipulation of cookies and web pages, disclosure
   of NTLM credentials and clipboard data of the logged-on user, and even
   firewall bypass.

2. A vulnerability in multiuser Windows environments which enables local DNS
   cache poisoning of arbitrary domains. This vulnerability can be triggered
   by a normal user (i.e. one with non-administrative rights) in order to
   attack other users of the system. A successful exploitation of this
   vulnerability may lead to information disclosure, privilege escalation,
   universal XSS and more.

 Whitepaper: http://bit.ly/q31wSq
 A blog post with video demos: http://bit.ly/qu4Ez7


Roee Hay <roeeh () il ibm com>, IBM Rational Application Security Research Group
Yair Amit <yairam () gmail com>

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