Archiv: macOS (operating system)


03.03.2021 - 13:06 [ macobserver.com ]

5 Encrypted DNS Services to Use on iOS and macOS

Short for Domain Name System, DNS is commonly referred to as the “phone book” of the internet. It helps connect web browsers with web servers by translating addresses like 104.26.0.124 into www.macobserver.com. Here are five encrypted DNS services that I recommend.

There are several different ways to use a DNS server. One is to manually go into network settings on each and configure the Wi-Fi. The second way is to download an app, and the third way is to go into your router settings and configure it there.

08.01.2021 - 23:32 [ inside-it.ch ]

Spoofing: Neue DNS-Angriffsmethode entdeckt

(13. November 2020)

Nachdem der Quellport de-randomisiert worden sei, sei es möglich gewesen, eine böswillige IP-Adresse einzuschleusen und so erfolgreich einen DNS-Cache-Poisoning-Angriff durchzuführen. Die Details haben die Forscher im Paper „DNS Cache Poisoning Attack Reloaded: Revolutions with Side Channels“ publiziert.

Weitere Experimente unter realistischen Serverkonfigurationen und Netzwerkbedingungen würden zudem zeigen, dass ihre grundlegende Methode leicht an das gesamte DNS-System angepasst werden könnte.

08.01.2021 - 23:04 [ .infosecurity-magazine.com ]

SAD Reality for DNS

The researchers determined that 35% of open resolvers are open to the attack, as well as four of six home routers made by well-known brands.

They also found that 12 of 14 popular public resolvers (now 11—Cloudflare says they’ve corrected their systems) are susceptible. Even a patched DNS server could be made vulnerable by an unpatched or misconfigured NAT gateway.

Their 19-page paper on the exploit includes lists of devices and services tested. They have since set up a SAD DNS website featuring a Q&A and a tool that anyone can use to determine whether their DNS is vulnerable.

The flaw is being tracked as CVE-2020-25705, and affects Linux 3.18 – 5.10, Windows Server 2019 version 1809 and newer, macOS 10.15 and newer, and FreeBSD 12.1.0 and newer. The researchers did not test earlier versions of the listed operating system.