U.S. CERT Issues Alert on DNS Amplification Attacks

Home / News

U.S. CERT Issues Alert on DNS Amplification Attacks

By CircleID Reporter
March 31, 2013, 5:22 pm PDT Views: 14,858 Add Comment

Neil Schwartzman writes to report that U.S. Cert issued Alert TA13-088A on Friday March 29, 2013. “It is a solid how-to guide to test for, and remediate DNS configurations that can be used for Distributed Denial of Service attacks.”

From the Alert: “While the attacks are difficult to prevent, network operators can implement several possible mitigation strategies. The primary element in the attack that is the focus of an effective long-term solution is the detection and elimination of open recursive DNS resolvers. These systems are typically legitimate DNS servers that have been improperly configured to respond to recursive queries on behalf of any system, rather than restricting recursive responses only to requests from local or authorized clients. By identifying these systems, an organization or network operator can reduce the number of potential resources that the attacker can employ in an attack.”

NORDVPN DISCOUNT - CircleID x NordVPN
Get NordVPN [74% +3 extra months, from $2.99/month]

By CircleID Reporter — CircleID’s internal staff reporting on news tips and developing stories. Do you have information the professional Internet community should be aware of? Contact us.
Visit Page

Filed Under

Comments

The Weekly Wrap

More and more professionals are choosing to publish critical posts on CircleID from all corners of the Internet industry. If you find it hard to keep up daily, consider subscribing to our weekly digest. We will provide you a convenient summary report once a week sent directly to your inbox. It's a quick and easy read.