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Oblivious DNS-over-HTTPS

Schneier on Security

This new protocol , called Oblivious DNS-over-HTTPS (ODoH), hides the websites you visit from your ISP. Because the DNS query is encrypted, the proxy can’t see what’s inside, but acts as a shield to prevent the DNS resolver from seeing who sent the query to begin with.

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Firefox Enables DNS over HTTPS

Schneier on Security

This is good news : Whenever you visit a website -- even if it's HTTPS enabled -- the DNS query that converts the web address into an IP address that computers can read is usually unencrypted. browsers childpornography dns firefox https mozilla securityengineering terrorism

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How to Secure DNS

eSecurity Planet

The domain name system (DNS) is basically a directory of addresses for the internet. Your browser uses DNS to find the IP for a specific service. Attackers will likely enumerate DNS to try common attacks. Also read: How to Prevent DNS Attacks. DNS: Five Critical Concepts.

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Serious Security: How dEliBeRaTe tYpOs might imProVe DNS security

Naked Security

Vulnerability DNS hijack SpoofingIt's a really cool and super-simple trick. The question is, "Will it help?"

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What Is DNS Scavenging?

Heimadal Security

DNS scavenging is the process of removing stale DNS records, usually used together with DNS aging in order to free up space and improve system performance. The post What Is DNS Scavenging?

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How DNS attacks threaten organizations

Tech Republic Security

Application downtime was the most significant side effect of a DNS attack, according to EfficientIP

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Costly DNS Attacks on the Rise

Security Boulevard

While awareness of DNS security continues to grow, the cost, frequency and number of attacks remain high, while the pandemic and resulting hybrid work environments have resulted in huge disruption for organizations. The post Costly DNS Attacks on the Rise appeared first on Security Boulevard.

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DNS Security

Adam Shostack

They asked us to look at the value of DNS security, such as when your DNS provider uses threat intel to block malicious sites. Just point to a DNS server like 9.9.9.9). The report is available from GCA’s site: Learn About How DNS Security Can Mitigate One-Third of Cyber Incidents. I’m happy to say that some new research by Jay Jacobs, Wade Baker, and myself is now available, thanks to the Global Cyber Alliance.

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How to define DNS in Docker containers

Tech Republic Security

Jack Wallen shows you how to configure specific DNS servers for your Docker container deployments

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New DNS Hijacking Attacks

Schneier on Security

DNS hijacking isn't new, but this seems to be an attack of uprecidented scale: Researchers at Cisco's Talos security division on Wednesday revealed that a hacker group it's calling Sea Turtle carried out a broad campaign of espionage via DNS hijacking, hitting 40 different organizations.

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What is DNS Spoofing?

Security Boulevard

Domain Name Server (DNS) spoofing is a type of attack in which the DNS records are altered to redirect the online traffic to a spoofed website that resembles the original destination. The post What is DNS Spoofing?

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DNS Hijacking: What You Need to Know

Security Boulevard

For infosec professionals, that same spectrum of reactions may come into play when detecting a hijack on your domain name system (DNS). The post DNS Hijacking: What You Need to Know appeared first on Security Boulevard.

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Roaming Mantis uses new DNS changer in its Wroba mobile malware

Security Affairs

Roaming Mantis threat actors were observed using a new variant of their mobile malware Wroba to hijack DNS settings of Wi-Fi routers. The DNS changer implemented in the new version connects to the hardcoded vk.com account “id728588947” to get the next destination (107.148.162[.]237:26333/sever.ini)”.

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Why You Need a Secondary DNS

Security Boulevard

The post Why You Need a Secondary DNS appeared first on Security Boulevard. Cybersecurity Incident Response Network Security Security Boulevard (Original) Threats & Breaches Vulnerabilities dns domain protection redundancyHow long can your business afford to be offline?

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Lyceum.NET DNS Backdoor

Security Boulevard

Key Features of this attack: The new malware is a.NET based DNS Backdoor which is a customized version of the open source tool “DIG.net”. The threat actor then leverages the AutoClose() function to drop the DNS backdoor onto the system. DNS Backdoor dropped in the Startup folder.

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A DNS flaw impacts a library used by millions of IoT devices

Security Affairs

A vulnerability in the domain name system (DNS) component of the uClibc library impacts millions of IoT products. An attacker can exploit the vulnerability for DNS poisoning or DNS spoofing and redirect the victim to a malicious website instead of the legitimate one.

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ISC fixed high-severity flaws in the BIND DNS software

Security Affairs

The Internet Systems Consortium (ISC) fixed six remotely exploitable vulnerabilities in the BIND DNS software. The Internet Systems Consortium (ISC) this week released security patches to address six remotely exploitable vulnerabilities in BIND DNS software.

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DigiCert Acquires DNS Made Easy

Dark Reading

The certificate management company plans to integrate DNS services throughout its portfolio

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What Is Encrypted DNS Traffic?

Heimadal Security

Encrypted DNS traffic is a type of DNS traffic secured in a way that no third party can intervene during a DNS resolution (the process of translating a domain name into an IP address). The post What Is Encrypted DNS Traffic?

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What Is a DNS Zone and How to Keep Safe From DNS Zone Transfer Attacks

Heimadal Security

The Domain Name System, and the DNS zones that it is composed of, are not as simple as ”the internet`s phonebook” largely used definition for DNS suggests it would be.

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How the Saitama backdoor uses DNS tunnelling

Malwarebytes

One of the stealthy communication techniques employed by malware trying to avoid detection is DNS Tunnelling, which hides messages inside ordinary-looking DNS requests. The payload in the attack was a backdoor called Saitama, a finite state machine that used DNS to communicate.

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Threat Trends: DNS Security, Part 1

Cisco Security

After examining topics such as the MITRE ATT&CK framework , LOLBins , and others, this release will look at DNS traffic to malicious sites. We’ll also look at malicious DNS activity—the number of queries malicious sites receive. Organizations and malicious DNS activity.

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Details on Recent DNS Hijacking

Schneier on Security

At the end of January the US Department of Homeland Security issued a warning regarding serious DNS hijacking attempts against US government domains. Brian Krebs wrote an excellent article detailing the attacks and their implications. Strongly recommended

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Blast Radius: DNS Takeovers

SecurityTrails

Patrik Hudak joins us to showcase his research into the impact DNS takeovers can have on companies. research

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DNS-over-HTTP/3 in Android

Google Security

Posted by Matthew Maurer and Mike Yu, Android team To help keep Android users’ DNS queries private, Android supports encrypted DNS. In addition to existing support for DNS-over-TLS, Android now supports DNS-over-HTTP/3 which has a number of improvements over DNS-over-TLS.

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DNS Over HTTPS: Facts You Should Know

Security Boulevard

A new protocol, DNS over HTTPS (DoH), is a sensation in modern times, designed for enterprise security products and policies. A combination of DNS protocol and HTTPS protocol, DoH affects businesses, organisations, and regular users. What is DNS over HTTPS (DoH)?

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3 ways DNS filtering can save SMBs from cyberattacks

Malwarebytes

That’s where DNS filtering comes in. But first, DNS in a nutshell. So normally, every time your customer types in your web address, their computer makes a request to a DNS server. The DNS server, in turn, tells the computer where to go.

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10 Threat Trends in DNS Security

Dark Reading

Cisco Security examines Cisco Umbrella data for trends in malicious DNS activity during 2020

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DNS over HTTPS, DNS over TLS explained: Encrypting DNS traffic

CSO Magazine

Being the backbone of the internet, the Domain Name System (DNS) protocol has undergone a series of improvements and enhancements over the past few years.

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What is DNS Poisoning? (aka DNS Spoofing) | Keyfactor

Security Boulevard

DNS poisoning, also known as DNS cache poisoning or DNS spoofing, is a highly deceptive cyber attack in which hackers redirect web traffic toward fake web servers and phishing websites. The post What is DNS Poisoning?

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Threat Trends: DNS Security, Part 2

Cisco Security

This is what we covered in part one of this Threat Trends release on DNS Security, using data from Cisco Umbrella , our cloud-native security service. This time we’ll be comparing yearly totals of DNS traffic to malicious sites, by industry. percent lower in overall DNS traffic.

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New DNS Spoofing Threat Puts Millions of Devices at Risk

eSecurity Planet

Security researchers have uncovered a critical vulnerability that could lead to DNS spoofing attacks in two popular C standard libraries that provide functions for common DNS operations. Understanding DNS Spoofing Attacks. Also read: How to Prevent DNS Attacks.

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VPN vs. DNS Security

The Hacker News

When you are trying to get another layer of cyber protection that would not require a lot of resources, you are most likely choosing between a VPN service & a DNS Security solution.

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ISC Releases Security Patches for New BIND DNS Software Vulnerabilities

The Hacker News

The Internet Systems Consortium (ISC) has released patches to address multiple security vulnerabilities in the Berkeley Internet Name Domain (BIND) 9 Domain Name System (DNS) software suite that could lead to a denial-of-service (DoS) condition. "A

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DNS Logging: What It Is and How Can It Help in Preventing DNS Attacks?

Heimadal Security

The post DNS Logging: What It Is and How Can It Help in Preventing DNS Attacks?

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What Is DNS And Why Should Your Business Care?

Adam Levin

Department of Homeland Security issued an emergency directive in January 2019 giving government agencies ten days to verify that they weren’t compromised by DNS hijacking. ICANN has been pointing out vulnerabilities in the DNS system since at least 2001 , and for the better part of the last decade urging companies to adopt the more secure Domain Name System Security Extensions, or DNSSEC. . What Is DNS and How Does It Get Hijacked? The U.S.

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TsuNAME flaw exposes DNS servers to DDoS attacks

Security Affairs

A flaw in some DNS resolvers, tracked as TsuNAME, can allow attackers to launch DDoS attacks against authoritative DNS servers. domains), and the Information Science Institute at the University of Southern California has discovered a vulnerability, named TsuNAME, in some DNS resolvers.

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Don’t Get ‘Shawshanked’ by DNS Tunneling 

Security Boulevard

Since the onset of the pandemic, cyberattackers have increasingly looked to leverage DNS channels to steal data, launch DDoS attacks and deploy malware—and the cost of these attacks is rising. The post Don’t Get ‘Shawshanked’ by DNS Tunneling appeared first on Security Boulevard.

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Enable secure DNS on your Chromebook: Here's how

Tech Republic Security

For a more secure experience, use DNS-over-HTTPS on your Chromebook. Jack Wallen shows you how

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How to enable secure DNS on your Chromebook

Tech Republic Security

Jack Wallen walks you through the process of using DNS-over-HTTPS on your Chromebook for a more secure experience

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Threat Trends: DNS Security

Cisco Security

After examining topics such as the MITRE ATT&CK framework , LOLBins , and others, this release will look at DNS traffic to malicious sites. We’ll also look at malicious DNS activity—the number of queries malicious sites receive. Organizations and malicious DNS activity.

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NAME:WRECK DNS Bugs: What You Need to Know

Security Boulevard

That’s because the Domain Name System (DNS) protocol does a good job of seamlessly routing users to different IP addresses that are all associated with a single domain name. […]… Read More. The post NAME:WRECK DNS Bugs: What You Need to Know appeared first on The State of Security.

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Microsoft: Recent Windows Server updates cause DNS issues

Bleeping Computer

Microsoft has addressed a new known issue causing DNS stub zones loading failures that could lead to DNS resolution issues on Windows Server 2019 systems. [.].

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