BugTraq
DNS Poisoning via Port Exhaustion Oct 18 2011 08:39PM
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 (at) il.ibm (dot) com [email concealed]>, IBM Rational Application Security Research Group
Yair Amit <yairam (at) gmail (dot) com [email concealed]>

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