DNS Protection: A "Must" in Security Solutions for any Company

Domain name system DNS services are often a point of vulnerability for businesses, so DNS security has become a growing concern for many of them. DNS is a critical element for all companies because it turns domain names into internet protocol IP addresses. Cyber criminals have been digging into D...

Malvertising: Online advertising's darker side

By Nick Biasini, Chris Neal and Matt Valites. Executive summary One of the trickiest challenges enterprises face is managing the balance between aggressively blocking malicious advertisements aka malvertising and allowing content to remain online, accessible for the average user. The days of...

UBUNTU-CVE-2019-10191

A vulnerability was discovered in DNS resolver of knot resolver before version 4.1.0 which allows remote attackers to downgrade DNSSEC-secure domains to DNSSEC-insecure state, opening possibility of domain hijack using attacks against insecure DNS protocol...

DHS Shortens Deadline For Gov Agencies to Fix Critical Flaws

A Department of Homeland Security DHS order now requires agencies to remediate critical vulnerabilities discovered on their systems in 15 days – cutting in half the previous deadline of 30 days. That’s according to a Tuesday binding directive, which is a compulsory order for federal, executive...

DEBIAN-CVE-2019-3807

An issue has been found in PowerDNS Recursor versions 4.1.x before 4.1.9 where records in the answer section of responses received from authoritative servers with the AA flag not set were not properly validated, allowing an attacker to bypass DNSSEC validation...

DHS Orders U.S. Federal Agencies to Audit DNS Security for Their Domains

The U.S. Department of Homeland Security DHS has today issued an "emergency directive" to all federal agencies ordering IT staff to audit DNS records for their respective website domains, or other agency-managed domains, within next 10 business days. The emergency security alert came in the wake ...

Design/Logic Flaw

To provide fine-grained controls over the ability to use Dynamic DNS DDNS to update records in a zone, BIND 9 provides a feature called update-policy. Various rules can be configured to limit the types of updates that can be performed by a client, depending on the key used when sending the update...

Zero Trust Security Protects Businesses while Enabling Growth

Many companies have their own applications, internal domains, and local area network LAN. But when it comes to business applications, organizations are increasingly dependent on cloud-based resources. These may include email servers, customer relationship management CRM software, or other...

CVE-2018-14663

An issue has been found in PowerDNS DNSDist before 1.3.3 allowing a remote attacker to craft a DNS query with trailing data such that the addition of a record by dnsdist, for example an OPT record when adding EDNS Client Subnet, might result in the trailing data being smuggled to the backend as a...

dns-net.ch XSS vulnerability

Open Bug Bounty ID: OBB-700884 Description| Value ---|--- Affected Website:| dns-net.ch Open Bug Bounty Program:| Create your bounty program now. It's open and free. Vulnerable Application:| hidden until disclosure Vulnerability Type:| XSS Cross Site Scripting / CWE-79 CVSSv3 Score:| hidden until...

powerdns -- Multiple vulnerabilities

PowerDNS Team reports: CVE-2018-10851: An issue has been found in PowerDNS Authoritative Server allowing an authorized user to cause a memory leak by inserting a specially crafted record in a zone under their control, then sending a DNS query for that record. The issue is due to the fact that som...

Most Threatening DNS Security Risks And How To Avoid Them

By Zehra Ali The DNS or Domain Name System is one of the most necessary components for the internet functionality. Most often, the internet businesses are negligent to the security of their digital identity that is the DNS. This poor security of DNS makes it vulnerable to many cyber attacks which...

How's that Security Back Door Doing? (Part 2)

In the first part of this blog post I wrote about how recursive DNS rDNS is an attack surface that many enterprises don't currently protect. Bad actors are exploiting that fact and developing advanced targeted threats that use DNS to bypass conventional security tools such as firewalls, secure we...

ARE YOU LEAVING YOUR SECURITY BACKDOOR OPEN?

Gartner predicts that enterprises will spend $96 Billion on cyber security this year, up 8% from their spend in 2017. That's a big chunk of change. To put it into context, that spend is in the same ballpark as the individual GDPs of Venezuela, Sri Lanka and Puerto Rico in 2018. Despite this,...

Mozilla Tests DNS over HTTPS: Meets Some Privacy Pushback

The Mozilla Foundation is testing a new mechanism for securing domain name server traffic that uses the encrypted HTTPS channel. It is an attempt to speed up the internet, reduce the threat of man-in-the-middle attacks and keep prying eyes from monitoring what users do online. Starting in the nex...

Smart DNS Resolution for a Better Safer Internet

By Arlen Frew Top-level Domain TLD operators are focused on making the Internet a better and safer place, enabling name registrations, and maintaining the DNS namespace in support of their stakeholders. The entire Internet ecosystem, including TLDs, is always looking for ways to improve security...

bind: Improper fetch cleanup sequencing in the resolver can cause named to crash

A use-after-free flaw leading to denial of service was found in the way BIND internally handled cleanup operations on upstream recursion fetch contexts. A remote attacker could potentially use this flaw to make named, acting as a DNSSEC validating resolver, exit unexpectedly with an assertion...

Humans, Machines and Data: Fighting Mirai, Together

By Yohai Einav, Hongliang Liu Background It's been 18 months since Mirai entered our lives, and, unfortunately, we expect it to have a perennial presence in our cyber-world for years to come. If we look at the big picture, all indicators suggest that the Mirai problem and its descendants is just...

UBUNTU-CVE-2017-15107

A vulnerability was found in the implementation of DNSSEC in Dnsmasq up to and including 2.78. Wildcard synthesized NSEC records could be improperly interpreted to prove the non-existence of hostnames that actually exist...

UBUNTU-CVE-2017-15090

An issue has been found in the DNSSEC validation component of PowerDNS Recursor from 4.0.0 and up to and including 4.0.6, where the signatures might have been accepted as valid even if the signed data was not in bailiwick of the DNSKEY used to sign it. This allows an attacker in position of...