Expert insights. Personalized for you.
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. MORE
Google finalizes its DNS-over-HTTPS service inching toward a world where DNS request are sent via HTTPS and not UDP or TCP. DNS over HTTPS DNS Spoofing DNS-over-HTTPS service HTTPSHacks Privacy Web Security 1.1.1.1 MORE
Seven flaws in DNSMasq have limited impact, but in combination they could be chained to create a multistaged attack MORE
Jack Wallen walks you through the process of using DNS-over-HTTPS on your Chromebook for a more secure experience MORE
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. MORE
In this blog, we will discuss one of them which is DNS tunneling and how it works. We will look at well-known DNS tunneling attack rootkits and how to configure them to test the security and detection capabilities in your environment. What is DNS? How DNS Tunneling Attacks Work. MORE
DNS leak leaves footprints in DNS server logs for a Brave user's Tor traffic MORE
Most of you have probably heard about encrypted DNS (DNS-over-HTTPS or DoH, and DNS-over-TLS or DoT) and have noticed that several of the major browser vendors have rolled out support for these newer protocols. ” And we would agree: encrypted DNS does provide a convenient way for computer users to mask the names and IP addresses of the hosts they are looking up, and can also help prevent tampering with those mappings in transit. MORE
Seven flaws in open-source software Dnsmasq could allow DNS cache poisoning attacks and remote code execution. Vulnerabilities MORE
cloud security analysts were searching through Amazon Web Services’ Route53 Domain Name Service (DNS) when they noticed all of a sudden that its self-service domain registration system allowed them to create a new hosted zone with the same name as the authentic AWS name server it was utilizing. MORE
Peter Lowe with DNSFilter discusses the science behind domain name system (DNS) filtering and how this method is effective in blocking out phishing and malware. Podcasts black list content filtering DNS dns filtering Domain Name System internet filtering malware Phishing MORE
The post Finding the Best Servers to Answer Queries — Edge DNS and Anycast appeared first on Security Boulevard. Security Bloggers Network anycast dns edgednsTL;DR. MORE
I was recently at an event listening to representatives of ICANN and CloudFlare speak on security with DNS and it occurred to me that very few of us really understand. The post The Evolving World of DNS Security appeared first on PerezBox. Security DNS Architecture and Security Security Tools And Technology Web And Information Security MORE
Microsoft has added a privacy feature to Windows 11 called DNS-over-HTTPS, allowing users to perform encrypted DNS lookups to bypass censorship and Internet activity. [.]. MORE
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. MORE
Firefox recently announced that it will be rolling out DNS-over-HTTPS (or DoH) soon to one percent of its Canadian users as part of its partnership with CIRA (the Canadian Internet Registration Authority), the Ontario-based organization responsible for managing the.ca MORE
A PDNS service uses existing DNS protocols and architecture to analyze DNS queries and mitigate threats. The capability to reroute email, user web browsers, as well as distribute malware at scale are possible when a DNS address has been compromised,” Kelly said. MORE
Microsoft has revealed that Thursday's worldwide outage was caused by a code defect that allowed the Azure DNS service to become overwhelmed and not respond to DNS queries. [.]. MORE
Jack Wallen shows you how to configure specific DNS servers for your Docker container deployments MORE
Application downtime was the most significant side effect of a DNS attack, according to EfficientIP MORE
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. MORE
Agency provides guidelines on securely deploying DNS over HTTPS, aka DoH MORE
Some Windows 10 users have issues with DNS resolution after installing the latest Windows 10 cumulative updates released this week. [.]. Microsoft MORE
Akamai Edge DNS service delivers edge-based, authoritative domain services for thousands of organizations. These organizations trust Edge DNS to deliver reliable and performant responses, reflected by a 100% uptime service-level agreement. Security Bloggers Network dns edge MORE
Microsoft is letting Windows Insiders test-drive DNS-over-HTTPS protocol in a pre-release build of Windows 10. Privacy Web Security chrome DNS DNS over HTTPS DNS-over-HTTPS service DoH DOT Firefox google HTTPS Microsoft Mozilla Windows 10 windows 10 build Windows Insider MORE
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. MORE
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. MORE
A new internet protocol is making headlines in the world of enterprise security: DNS over HTTPS. The post DNS over HTTPS (DoH): Definition, Implementation, Benefits, and More appeared first on Heimdal Security Blog. MORE
Researchers found a "novel" class of DNS vulnerabilities in AWS Route53 and other DNS-as-a-service offerings that leak sensitive information on corporate and government customers, with one simple registration step MORE
” The DNS part of that moniker refers to the global “ D omain N ame S ystem ,” which serves as a kind of phone book for the Internet by translating human-friendly Web site names (example.com) into numeric Internet address that are easier for computers to manage. Talos reported that these DNS hijacks also paved the way for the attackers to obtain SSL encryption certificates for the targeted domains (e.g. PASSIVE DNS. The U.S. MORE
Verisign's R&D team has developed new ways to authenticate and optimize DNS traffic on the client side of the domain-name resolution process MORE
Attackers can use a newly disclosed domain name server (DNS) vulnerability publicly known as TsuNAME as an amplification vector in large-scale reflection-based distributed denial of service (DDoS) attacks targeting authoritative DNS servers. [.]. MORE
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. MORE
For a more secure experience, use DNS-over-HTTPS on your Chromebook. Jack Wallen shows you how MORE
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 MORE
Rarely do you wake up thinking to yourself, “wonder how my DNS is doing today?” The post Three Things that DNS Outages Teach Administrator appeared first on PerezBox. ” but I can guarantee it’s been the root cause of one, or two, sleepless nights, Read More. MORE
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. MORE
A global DNS outage related to the Akamai company made quite a stir on Thursday. The post DNS Global Outage Affected Websites and Online Services appeared first on Heimdal Security Blog. Cybersecurity News DNS dns security global outage MORE
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? MORE
Security experts from Forescout and JSOF have discovered a new set of DNS vulnerabilities that could impact more than 100 million IoT devices used by consumers and organizations. The post Name:Wreck DNS Bugs Put IoT Devices At Risk appeared first on Heimdal Security Blog. MORE
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 MORE
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. MORE
Vulnerabilities Web Security critical vulnerability CVE-2020-1350 DNS DNS NameServer dns.exe Domain Administrator HTTP request July Patch Tuesday Microsoft patch Microsoft Security Response Center security bug SigRed WinDNS Windows server wormable MORE
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. MORE
DNS Related Topics Schneier on Security
DECEMBER 8, 2020
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.
Schneier on Security
FEBRUARY 25, 2020
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
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Adam Shostack
JUNE 13, 2019
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.
Tech Republic Security
JULY 8, 2021
Jack Wallen shows you how to configure specific DNS servers for your Docker container deployments
Heimadal Security
JULY 23, 2021
A global DNS outage related to the Akamai company made quite a stir on Thursday. The post DNS Global Outage Affected Websites and Online Services appeared first on Heimdal Security Blog. Cybersecurity News DNS dns security global outage
CSO Magazine
MARCH 29, 2021
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.
Schneier on Security
APRIL 18, 2019
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.
Security Boulevard
FEBRUARY 13, 2021
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?
Tech Republic Security
JUNE 10, 2020
Application downtime was the most significant side effect of a DNS attack, according to EfficientIP
Malwarebytes
JULY 12, 2021
Firefox recently announced that it will be rolling out DNS-over-HTTPS (or DoH) soon to one percent of its Canadian users as part of its partnership with CIRA (the Canadian Internet Registration Authority), the Ontario-based organization responsible for managing the.ca
Tech Republic Security
AUGUST 2, 2021
For a more secure experience, use DNS-over-HTTPS on your Chromebook. Jack Wallen shows you how
Security Affairs
MAY 9, 2021
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.
Schneier on Security
FEBRUARY 20, 2019
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
Security Boulevard
MAY 9, 2021
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.
Zero Day
FEBRUARY 19, 2021
DNS leak leaves footprints in DNS server logs for a Brave user's Tor traffic
Cisco Security
MARCH 11, 2021
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.
Heimadal Security
JUNE 24, 2021
cloud security analysts were searching through Amazon Web Services’ Route53 Domain Name Service (DNS) when they noticed all of a sudden that its self-service domain registration system allowed them to create a new hosted zone with the same name as the authentic AWS name server it was utilizing.
Bleeping Computer
MAY 6, 2021
Attackers can use a newly disclosed domain name server (DNS) vulnerability publicly known as TsuNAME as an amplification vector in large-scale reflection-based distributed denial of service (DDoS) attacks targeting authoritative DNS servers. [.].
Vipre
JANUARY 27, 2021
Most of you have probably heard about encrypted DNS (DNS-over-HTTPS or DoH, and DNS-over-TLS or DoT) and have noticed that several of the major browser vendors have rolled out support for these newer protocols. ” And we would agree: encrypted DNS does provide a convenient way for computer users to mask the names and IP addresses of the hosts they are looking up, and can also help prevent tampering with those mappings in transit.
Dark Reading
JANUARY 14, 2021
Agency provides guidelines on securely deploying DNS over HTTPS, aka DoH
Cisco Security
MARCH 23, 2021
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.
Threatpost
JUNE 26, 2019
Google finalizes its DNS-over-HTTPS service inching toward a world where DNS request are sent via HTTPS and not UDP or TCP. DNS over HTTPS DNS Spoofing DNS-over-HTTPS service HTTPSHacks Privacy Web Security 1.1.1.1
Cisco Security
MARCH 11, 2021
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.
Dark Reading
JUNE 23, 2021
Researchers found a "novel" class of DNS vulnerabilities in AWS Route53 and other DNS-as-a-service offerings that leak sensitive information on corporate and government customers, with one simple registration step
Doctor Chaos
JULY 18, 2020
In this blog, we will discuss one of them which is DNS tunneling and how it works. We will look at well-known DNS tunneling attack rootkits and how to configure them to test the security and detection capabilities in your environment. What is DNS? How DNS Tunneling Attacks Work.
Threatpost
DECEMBER 2, 2020
Peter Lowe with DNSFilter discusses the science behind domain name system (DNS) filtering and how this method is effective in blocking out phishing and malware. Podcasts black list content filtering DNS dns filtering Domain Name System internet filtering malware Phishing
Security Boulevard
MAY 27, 2021
Akamai Edge DNS service delivers edge-based, authoritative domain services for thousands of organizations. These organizations trust Edge DNS to deliver reliable and performant responses, reflected by a 100% uptime service-level agreement. Security Bloggers Network dns edge
Krebs on Security
FEBRUARY 18, 2019
” The DNS part of that moniker refers to the global “ D omain N ame S ystem ,” which serves as a kind of phone book for the Internet by translating human-friendly Web site names (example.com) into numeric Internet address that are easier for computers to manage. Talos reported that these DNS hijacks also paved the way for the attackers to obtain SSL encryption certificates for the targeted domains (e.g. PASSIVE DNS. The U.S.
Bleeping Computer
APRIL 3, 2021
Microsoft has revealed that Thursday's worldwide outage was caused by a code defect that allowed the Azure DNS service to become overwhelmed and not respond to DNS queries. [.].
Bleeping Computer
APRIL 16, 2021
Some Windows 10 users have issues with DNS resolution after installing the latest Windows 10 cumulative updates released this week. [.]. Microsoft
Threatpost
JULY 14, 2020
Vulnerabilities Web Security critical vulnerability CVE-2020-1350 DNS DNS NameServer dns.exe Domain Administrator HTTP request July Patch Tuesday Microsoft patch Microsoft Security Response Center security bug SigRed WinDNS Windows server wormable
Security Boulevard
MARCH 9, 2021
The post Finding the Best Servers to Answer Queries — Edge DNS and Anycast appeared first on Security Boulevard. Security Bloggers Network anycast dns edgednsTL;DR.
Dark Reading
NOVEMBER 19, 2020
Verisign's R&D team has developed new ways to authenticate and optimize DNS traffic on the client side of the domain-name resolution process
Threatpost
MAY 14, 2020
Microsoft is letting Windows Insiders test-drive DNS-over-HTTPS protocol in a pre-release build of Windows 10. Privacy Web Security chrome DNS DNS over HTTPS DNS-over-HTTPS service DoH DOT Firefox google HTTPS Microsoft Mozilla Windows 10 windows 10 build Windows Insider
PerezBox Security
MAY 5, 2021
Rarely do you wake up thinking to yourself, “wonder how my DNS is doing today?” The post Three Things that DNS Outages Teach Administrator appeared first on PerezBox. ” but I can guarantee it’s been the root cause of one, or two, sleepless nights, Read More.
Dark Reading
JANUARY 19, 2021
Seven flaws in DNSMasq have limited impact, but in combination they could be chained to create a multistaged attack
Bleeping Computer
JUNE 29, 2021
Microsoft has added a privacy feature to Windows 11 called DNS-over-HTTPS, allowing users to perform encrypted DNS lookups to bypass censorship and Internet activity. [.].
Heimadal Security
APRIL 13, 2021
Security experts from Forescout and JSOF have discovered a new set of DNS vulnerabilities that could impact more than 100 million IoT devices used by consumers and organizations. The post Name:Wreck DNS Bugs Put IoT Devices At Risk appeared first on Heimdal Security Blog.
Tech Republic Security
MAY 10, 2021
Jack Wallen walks you through the process of using DNS-over-HTTPS on your Chromebook for a more secure experience
SC Magazine
MARCH 4, 2021
A PDNS service uses existing DNS protocols and architecture to analyze DNS queries and mitigate threats. The capability to reroute email, user web browsers, as well as distribute malware at scale are possible when a DNS address has been compromised,” Kelly said.
PerezBox Security
MARCH 2, 2019
I was recently at an event listening to representatives of ICANN and CloudFlare speak on security with DNS and it occurred to me that very few of us really understand. The post The Evolving World of DNS Security appeared first on PerezBox. Security DNS Architecture and Security Security Tools And Technology Web And Information Security
Heimadal Security
JULY 13, 2021
A new internet protocol is making headlines in the world of enterprise security: DNS over HTTPS. The post DNS over HTTPS (DoH): Definition, Implementation, Benefits, and More appeared first on Heimdal Security Blog.
Threatpost
JANUARY 19, 2021
Seven flaws in open-source software Dnsmasq could allow DNS cache poisoning attacks and remote code execution. Vulnerabilities
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