What did DeathStalker hide between two ferns?

DeathStalker is a threat actor thats been active since at least 2012, and we exposed most of their past activities in a previous article, as well as during a GREAT Ideas conference in August 2020. The actor drew our attention in 2018 because of distinctive attack characteristics that didnt fit in...

DNSx - A Fast And Multi-Purpose DNS Toolkit Allow To Run Multiple DNS Queries Of Your Choice With A List Of User-Supplied Resolvers

dnsx is a fast and multi-purpose DNS toolkit allow to run multiple probers using retryabledns library, that allows you to perform multiple DNS queries of your choice with a list of user supplied resolvers. dnsx is successor of dnsprobe that includes new features, multiple bugs fixes, and tailored...

SAD DNS — New Flaws Re-Enable DNS Cache Poisoning Attacks

A group of academics from the University of California and Tsinghua University has uncovered a series of critical security flaws that could lead to a revival of DNS cache poisoning attacks. Dubbed "SAD DNS attack" short for Side-channel AttackeD DNS, the technique makes it possible for a maliciou...

Smart DNS for the New Network Edge

This is the first in a series of blog posts that will discuss how smart DNS resolvers can enhance ongoing ISP and MNO network transformation efforts such as the transition to 5G, better integration of Wi-Fi, and new network designs that optimize the edge to improve service delivery and network...

Unimap - Scan Only Once By IP Address And Reduce Scan Times With Nmap For Large Amounts Of Data

Scan only once by IP address and reduce scan times with Nmap for large amounts of data. Unimap is an abbreviation of "Unique Nmap Scan ". The tool can run in Linux, OSX, Windows or Android Termux without problems. Why? If you have plans to run an Nmap to a whole organization you need to consideer...

Fedora: Security Advisory for unbound (FEDORA-2020-8e9b62948e)

The remote host is missing an update for the Copyright C 2020 Greenbone Networks GmbH Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-or-later This program is free software; you can...

New DNS Vulnerability Lets Attackers Launch Large-Scale DDoS Attacks

Israeli cybersecurity researchers have disclosed details about a new flaw impacting DNS protocol that can be exploited to launch amplified, large-scale distributed denial-of-service DDoS attacks to takedown targeted websites. Called NXNSAttack, the flaw hinges on the DNS delegation mechanism to...

New DNS Vulnerability Lets Attackers Launch Large-Scale DDoS Attacks

Israeli cybersecurity researchers have disclosed details about a new flaw impacting DNS protocol that can be exploited to launch amplified, large-scale distributed denial-of-service DDoS attacks to takedown targeted websites. Called NXNSAttack, the flaw hinges on the DNS delegation mechanism to...

Microsoft Adds DNS-Over-HTTPS Support for Windows 10 Insiders

Microsoft has announced the first testable version of DNS-Over-HTTPS DoH support, available for its Windows 10 operating system. Support for the DoH protocol, which Microsoft first announced in November, is available in the Windows 10 Insider Preview Build 19628. This is accessible for members of...

DNSProbe - A Tool Built On Top Of Retryabledns That Allows You To Perform Multiple DNS Queries Of Your Choice With A List Of User Supplied Resolvers

DNSProbe is a tool built on top of retryabledns that allows you to perform multiple dns queries of your choice with a list of user supplied resolvers. Features Simple and Handy utility to query DNS records. Usage dnsprobe -h This will display help for the tool. Here are all the switches it...

CVE-2019-6469

An error in the EDNS Client Subnet ECS feature for recursive resolvers can cause BIND to exit with an assertion failure when processing a response that has malformed RRSIGs. Versions affected: BIND 9.10.5-S1 - 9.11.6-S1 of BIND 9 Supported Preview Edition...

Simplifying the ISP Transition to DNS Encryption

New protocols to encrypt DNS traffic, DNS over HTTPS DoH and DNS over TLS DoT, have been a visible Internet topic for the past two years. Akamai participated in the definition of DoH/DoT standards and recently released support in the high-performance CacheServe resolver. Major features include:...

shuffleDNS - Wrapper Around Massdns Written In Go That Allows You To Enumerate Valid Subdomains

shuffleDNS is a wrapper around massdns written in go that allows you to enumerate valid subdomains using active bruteforce as well as resolve subdomains with wildcard handling and easy input-output support. Based on the work on massdns project by @blechschmidt. Features Simple and modular code ba...

Subfinder - A Subdomain Discovery Tool That Discovers Valid Subdomains For Websites

subfinder is a subdomain discovery tool that discovers valid subdomains for websites by using passive online sources. It has a simple modular architecture and is optimized for speed. subfinder is built for doing one thing only - passive subdomain enumeration, and it does that very well. We have...

Firefox enables DNS-over-HTTPS by default (with Cloudflare) for all U.S. users

If you use the Firefox web browser, here's an important update that you need to be aware of. Starting today, Mozilla is activating the DNS-over-HTTPS security feature by default for all Firefox users in the U.S. by automatically changing their DNS server configuration in the settings. That means,...

MassDNS - A High-Performance DNS Stub Resolver For Bulk Lookups And Reconnaissance (Subdomain Enumeration)

MassDNS is a simple high-performance DNS stub resolver targetting those who seek to resolve a massive amount of domain names in the order of millions or even billions. Without special configuration, MassDNS is capable of resolving over 350,000 names per second using publicly available resolvers...

A View into Top Level Domain (TLD) Abuse

Data science and security research teams in the carrier organization at Akamai process massive volumes of DNS queries every day to detect and track malicious activity. The data is live-streamed from DNS resolvers deployed in diverse service provider networks in every region of the world. Provider...

CVE-2019-6469

An error in the EDNS Client Subnet ECS feature for recursive resolvers can cause BIND to exit with an assertion failure when processing a response that has malformed RRSIGs. Versions affected: BIND 9.10.5-S1 - 9.11.6-S1 of BIND 9 Supported Preview Edition...

CVE-2019-6469 BIND Supported Preview Edition can exit with an assertion failure if ECS is in use

An error in the EDNS Client Subnet ECS feature for recursive resolvers can cause BIND to exit with an assertion failure when processing a response that has malformed RRSIGs. Versions affected: BIND 9.10.5-S1 - 9.11.6-S1 of BIND 9 Supported Preview Edition...

CVE-2019-6469

CVE-2019-6469 concerns an error in the EDNS Client Subnet (ECS) feature in BIND’s recursive resolvers. A malformed RRSIG in a response can trigger an assertion failure, causing BIND to exit. Affected versions are BIND 9.10.5-S1 through 9.11.6-S1 (BIND 9 Supported Preview Edition). The issue is ti...