Protecting your Domain Names: Taking the First Steps

Everyone and everything on the Internet depends on the Domain Name System DNS being functional. The DNS has been a common vector for attacks in recent years, and 2019 seems to be no different. Many of these attacks have goals far more sinister than simply taking a company offline or defacing a...

DNSSEC Key Signing Key Rollover

On October 11, 2018, the Internet Corporation for Assigned Names and Numbers ICANN will be changing the Root Zone Key Signing Key KSK used in the Domain Name System DNS Security Extensions DNSSEC protocol. DNSSEC is a set of protocol extensions used to digitally sign DNS information, an important...

Subdomain Discovery Tool: SubFinder

SubFinder is a subdomain discovery tool that uses various techniques to discover massive amounts of subdomains for any target. It has been aimed as a successor to the sublist3r project . SubFinder uses Passive Sources, Search Engines, Pastebins, Internet Archives, etc to find subdomains and then ...

Amass - In-depth Subdomain Enumeration

The Amass tool performs scraping of data sources, recursive brute forcing, crawling of web archives, permuting and altering of names and reverse DNS sweeping to obtain additional subdomain names. Additionally, Amass uses the IP addresses obtained during resolution to discover associated netblocks...

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...

ICANN Postpones Scheduled DNS Crypto Key Rollover

ICANN, the overseer of the Internet’s namespace, announced this week that it was postponing a scheduled change to the cryptographic key that protects the Domain Name System. ICANN said in a statement that the change was to occur on Oct. 11, but new data indicates that a “significant number” of...

DNSSEC Key Signing Key Rollover Postponed

The Internet Corporation for Assigned Names and Numbers ICANN has announced that the change to the Root Zone Key Signing Key KSK scheduled for October 11, 2017, has been postponed. A new date for the Key Roll has not yet been determined. DNSSEC is a set of DNS protocol extensions used to digitall...

Akamai's DNS Contribution to Internet Resiliency

Background Akamai Technologies recently contributed its "Serve Stale" DNS algorithm to Version 9 of the Internet Systems Consortium's ISC Berkeley Internet Name Domain BIND open source Domain Name System DNS project. As the Internet's most widely used DNS implementation, BIND operates ubiquitousl...

Oracle Linux 7 : bind (ELSA-2017-1680)

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2017-1680 advisory. - Fix CVE-2017-3142 and CVE-2017-3143 Tenable has extracted the preceding description block directly from the Oracle Linux security advisory. Note that...

tcpdump buffer overflow vulnerability (CNVD-2017-02289)

tcpdump is a set of sniffing tools developed by the Tcpdump team that runs under the command line. The tool allows users to intercept and display TCP/IP and other packets sent or received over a network connection to that computer. A buffer overflow vulnerability exists in the...

DSA-3703-1 bind9 - security update

Bulletin has no description...

SubBrute v2.0 - A DNS meta-query spider that enumerates DNS records, and subdomains

SubBrute is a community driven project with the goal of creating the fastest, and most accurate subdomain enumeration tool. Some of the magic behind SubBrute is that it uses open resolvers as a kind of proxy to circumvent DNS rate-limiting https://www.us-cert.gov/ncas/alerts/TA13-088A . This desi...

Network-based DNS logging in Go: GoPassiveDNS

A network-capture based DNS logger, inspired by passivedns. It uses gopacket to deal with libpcap and packet processing. It outputs JSON logs. It is intended to deal with high volume query capture in environments with anywhewre from one to hundreds of DNS resolvers. Why not use PassiveDNS from...

SOL47098834 - glibc vulnerability CVE-2015-7547

Vulnerability Recommended Actions If you are running a version listed in the Versions known to be vulnerable column, you can eliminate this vulnerability by upgrading to a version listed in the Versions known to be not vulnerable column. If the table lists only an older version than what you are...

SubBrute - Subdomain Bruteforcer

SubBrute is a community driven project with the goal of creating the fastest, and most accurate subdomain enumeration tool. Some of the magic behind SubBrute is that it uses open resolvers as a kind of proxy to circumvent DNS rate-limiting https://www.us-cert.gov/ncas/alerts/TA13-088A. This desig...

Subdomain Enumeration Tool: SubBrute

SubBrute is a community driven project with the goal of creating the fastest, and most accurate subdomain enumeration tool. Some of the magic behind SubBrute is that it uses open resolvers as a kind of proxy to circumvent DNS rate-limiting /TA13-088A . This design also provides a layer of...

Some Recursive DNS Implementations Patch DoS Vulnerability

UPDATE: Some domain name system DNS server implementations are at risk for denial-of-service attacks after a vulnerability was disclosed and patched in a few popular server packages, including BIND, OpenDNS, PowerDNS and NLnetLabs. According to an advisory from DHS and the CERT Coordination Cente...

UBUNTU-CVE-2014-4883

resolv.c in the DNS resolver in uIP, and dns.c in the DNS resolver in lwIP 1.4.1 and earlier, does not use random values for ID fields and source ports of DNS query packets, which makes it easier for man-in-the-middle attackers to conduct cache-poisoning attacks via spoofed reply packets...

PointDNS Recovers from Massive DDoS Attack

PointDNS says most of its DNS servers are online again after a massive DDoS attack late last week took down the service provider. A post on the company’s Twitter account on Friday said the provider was adding nameservers and working with network providers to restore service to its customers. Many...

Volume of NTP Amplification Attacks Getting Louder

No security arena is better representative of the cat and mouse game between hackers and defenders than DDoS attacks and prevention/mitigation. Enterprises and service providers have invested heavily in DDoS mitigations in order to keep critical services available. That’s forced hackers to crank ...