/ Security News /

Providing public Wi-Fi is a great service to offer your customers as it becomes more and more standard in today’s society. I like the fact that I do not have to worry about accessing the Internet while I am away, or spending a lot of money on an international connection, or just staying offline while …

/ Security News /

Researchers have demonstrated yet another variant of the SAD DNS cache poisoning attack that leaves about 38% of the domain name resolvers vulnerable, enabling attackers to redirect traffic originally destined to legitimate websites to a server under their control. “The attack allows an off-path attacker to inject a malicious DNS record into a DNS cache,” …

/ Security News /

Cybersecurity researchers have disclosed a new class of vulnerabilities impacting major DNS-as-a-Service (DNSaaS) providers that could allow attackers to exfiltrate sensitive information from corporate networks. “We found a simple loophole that allowed us to intercept a portion of worldwide dynamic DNS traffic going through managed DNS providers like Amazon and Google,” researchers Shir Tamari and …

/ Security News /

Cybersecurity researchers have uncovered multiple vulnerabilities in Dnsmasq, a popular open-source software used for caching Domain Name System (DNS) responses, thereby potentially allowing an adversary to mount DNS cache poisoning attacks and remotely execute malicious code. The seven flaws, collectively called “DNSpooq” by Israeli research firm JSOF, echoes previously disclosed weaknesses in the DNS architecture, …

/ Security News /

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 malicious actor to carry out an off-path attack, …

/ Security News /

Cybersecurity researchers today disclosed a new highly critical “wormable” vulnerability—carrying a severity score of 10 out of 10 on the CVSS scale—affecting Windows Server versions 2003 to 2019. The 17-year-old remote code execution flaw (CVE-2020-1350), dubbed ‘SigRed‘ by Check Point, could allow an unauthenticated, remote attacker to gain domain administrator privileges over targeted servers and …

/ Security News /

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 force DNS resolvers to generate more DNS queries to authoritative servers of attacker’s choice, potentially …

/ Security Assessments News /

When you visit a new website, your computer probably submits a request to the domain name system (DNS) to translate the domain name (like arstechnica.com) to an IP address. Currently, most DNS queries are unencrypted, which raises privacy and security concerns. Google and Mozilla are trying to address these concerns by adding support in their browsers …

/ Security News /

Immediately after Mozilla announced its plan to soon enable ‘DNS over HTTPS‘ (DoH) by default for Firefox users in the United States, Google today says it is planning an experiment with the privacy-focused technology in its upcoming Chrome 78. Under development since 2017, ‘DNS over HTTPS‘ performs DNS lookups—finding the server IP address of a …

/ Government Security Alerts /

Summary The National Cybersecurity and Communications Integration Center (NCCIC), part of the Cybersecurity and Infrastructure Security Agency (CISA), is aware of a global Domain Name System (DNS) infrastructure hijacking campaign. Using compromised credentials, an attacker can modify the location to which an organization’s domain name resources resolve. This enables the attacker to redirect user traffic …