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
Threatpost interviews Wiz CTO about a vulnerability recently patched by Amazon Route53's DNS service and Google Cloud DNS. Cloud Security Hacks Vulnerabilities MORE
Security researchers found a new class of DNS vulnerabilities impacting major DNS-as-a-Service (DNSaaS) providers that could allow attackers to access sensitive information from corporate networks. [.]. 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
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. MORE
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. 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
The domain name system (DNS) is known as the phone book of the internet, quickly connecting users from their devices to their desired content. The post DNSSEC: The Secret Weapon Against DNS Attacks appeared first on Security Boulevard. 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 DNS in and of itself has never been secure. Throughout time, this has led malicious actors to take advantage of this issue and develop elaborate attack techniques that leverage the DNS, such as […]. MORE
The Internet Systems Consortium (ISC) addressed a high-severity denial-of-service (DoS) flaw (CVE-2021-25218) affecting the BIND DNS software. Some operating systems allow packets received via other protocols to affect PMTUD values for DNS over UDP.” 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
Patrik Hudak joins us to showcase his research into the impact DNS takeovers can have on companies. research MORE
Jack Wallen shows you how to configure specific DNS servers for your Docker container deployments MORE
The Domain Name System (DNS), which supports the Internet presence of your company, is a centralized network run by different organizations worldwide. Simply put, the DNS is […]. Endpoint security For Business With Audio DNS dns security MORE
Application downtime was the most significant side effect of a DNS attack, according to EfficientIP MORE
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 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
A brand-new category of DNS flaws that affects important DNS-as-a-Service (DNSaaS) suppliers has been recently discovered by cybersecurity specialists. The post New Category of DNS Vulnerabilities Impacts Numerous DNSaaS Platforms appeared first on Heimdal Security Blog. 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
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. 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
The post Threat Hunting Anomalous DNS and LDAP Activity with Trend Rules appeared first on LogRhythm. The post Threat Hunting Anomalous DNS and LDAP Activity with Trend Rules appeared first on Security Boulevard. 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
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
Cisco Security examines Cisco Umbrella data for trends in malicious DNS activity during 2020 MORE
Among its early findings, 60% of the DNS transactions captured were handled by just 1,000 name servers 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
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.
Security Boulevard
NOVEMBER 9, 2021
The domain name system (DNS) is known as the phone book of the internet, quickly connecting users from their devices to their desired content. The post DNSSEC: The Secret Weapon Against DNS Attacks appeared first on Security Boulevard.
Security Boulevard
SEPTEMBER 12, 2021
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.
Security Boulevard
NOVEMBER 8, 2021
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.
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.
Dark Reading
SEPTEMBER 21, 2021
Cisco Security examines Cisco Umbrella data for trends in malicious DNS activity during 2020
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
NOVEMBER 4, 2021
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.
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?
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.
SecurityTrails
AUGUST 2, 2021
Patrik Hudak joins us to showcase his research into the impact DNS takeovers can have on companies. research
Heimadal Security
NOVEMBER 12, 2021
The Domain Name System (DNS), which supports the Internet presence of your company, is a centralized network run by different organizations worldwide. Simply put, the DNS is […]. Endpoint security For Business With Audio DNS dns security
Tech Republic Security
JULY 8, 2021
Jack Wallen shows you how to configure specific DNS servers for your Docker container deployments
Adam Levin
MARCH 21, 2019
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.
Tech Republic Security
JUNE 10, 2020
Application downtime was the most significant side effect of a DNS attack, according to EfficientIP
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.
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
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
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
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
Dark Reading
JANUARY 14, 2021
Agency provides guidelines on securely deploying DNS over HTTPS, aka DoH
Heimadal Security
OCTOBER 22, 2021
The DNS in and of itself has never been secure. Throughout time, this has led malicious actors to take advantage of this issue and develop elaborate attack techniques that leverage the DNS, such as […].
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
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
AUGUST 6, 2021
A brand-new category of DNS flaws that affects important DNS-as-a-Service (DNSaaS) suppliers has been recently discovered by cybersecurity specialists. The post New Category of DNS Vulnerabilities Impacts Numerous DNSaaS Platforms appeared first on Heimdal Security Blog.
Security Boulevard
JANUARY 25, 2022
The post Threat Hunting Anomalous DNS and LDAP Activity with Trend Rules appeared first on LogRhythm. The post Threat Hunting Anomalous DNS and LDAP Activity with Trend Rules appeared first on Security Boulevard.
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
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
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
Security Affairs
AUGUST 20, 2021
The Internet Systems Consortium (ISC) addressed a high-severity denial-of-service (DoS) flaw (CVE-2021-25218) affecting the BIND DNS software. Some operating systems allow packets received via other protocols to affect PMTUD values for DNS over UDP.”
Zero Day
FEBRUARY 19, 2021
DNS leak leaves footprints in DNS server logs for a Brave user's Tor traffic
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. [.].
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
The Hacker News
AUGUST 11, 2021
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
Threatpost
AUGUST 12, 2021
Threatpost interviews Wiz CTO about a vulnerability recently patched by Amazon Route53's DNS service and Google Cloud DNS. Cloud Security Hacks Vulnerabilities
Dark Reading
JUNE 12, 2019
Among its early findings, 60% of the DNS transactions captured were handled by just 1,000 name servers
Bleeping Computer
AUGUST 5, 2021
Security researchers found a new class of DNS vulnerabilities impacting major DNS-as-a-Service (DNSaaS) providers that could allow attackers to access sensitive information from corporate networks. [.].
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
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.
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.
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.
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.
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