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DNS poisoning via Port Exhaustion
Today we are releasing a very interesting whitepaper which describes a DNS poisoning attack against stub resolvers.
It discloses two vulnerabilities:
- 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.
The whitepaper can be found here.
- 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.
A few video demos of our Proof-of-Concept:
- Attack: Remote DNS poisoning via Java Applets: Cookie theft.
- Environment: Ubuntu 11.04, Firefox 7.0.1. Movie link
- Attack: Remote DNS poisoning via Java Apples: NTLM credentials and Clipboard theft.
- Environment: Windows 2008, Internet Explorer 9. Movie link
- Attack: Remote DNS poisoning via Java Applets: Firewall bypass.
- Environment: Windows 2008, Firefox 7.0.1. Movie Link
- Attack: Local DNS poisoning via port exhaustion. Movie link
- Environment: Windows 2008
Category: H4ckers' Z0n3 |
Views: 1625 |
Added by: geenix
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