DNS Poisoning via Port Exhaustion

2011-10-24T00:00:00
ID SECURITYVULNS:DOC:27184
Type securityvulns
Reporter Securityvulns
Modified 2011-10-24T00:00:00

Description

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>