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 ...

DNS SOHO Router Pharming Attack Takes 300,000 Routers

More than 300,000 small office and home office routers, most in Europe and Asia, were compromised in a campaign that started in mid-December, continuing a rash of security incidents involving home and small business networking equipment. Researchers at Team Cymru published a report today on the...

High-Traffic Denial-of-Service Amplification Attacks Remain

It seems the exaggerated volume of bad traffic used in politically motivated DDoS attacks last year was not an isolated phenomenon. Distributed denial-of-service attacks that congest Internet connectivity and disrupt online services topped unprecedented levels in 2013, shoving aside stealthier...

Amazon Linux AMI : bind (ALAS-2011-24)

A flaw was discovered in the way BIND handled certain DNS queries, which caused it to cache an invalid record. A remote attacker could use this flaw to send repeated queries for this invalid record, causing the resolvers to exit unexpectedly due to a failed assertion. C Tenable Network Security,...

Massive 167Gbps DDoS attacks against Banking and Financial Institutions

DDoS attackers attempted to bring down an Banking services earlier this week using one of the largest Distributed denial of service attack using DNS reflection technique. Prolexic, the global leader in Distributed Denial of Service DDoS protection services, announced that it has successfully...

Massive 167Gbps DDoS attacks against Banking and Financial Institutions

DDoS attackers attempted to bring down an Banking services earlier this week using one of the largest Distributed denial of service attack using DNS reflection technique. Prolexic, the global leader in Distributed Denial of Service DDoS protection services, announced that it has successfully...

World's biggest DDoS attack that Almost Broke the Internet

The last week has seen probably the largest distributed denial-of-service DDoS attack ever. A massive 300Gbps was thrown against Internet blacklist maintainer Spamhaus' website but the anti-spam organisation , CloudFlare was able to recover from the attack and get its core services back up and...

Open DNS Resolvers Center Stage in Massive DDoS Attacks

For some perspective on what 300 Gbps of traffic represents, let’s just pretend that your company, as a potential customer, put this massive volume of bits and bytes in front of 20 of the leading Internet service providers. Chances are, all but three or four will tell you “Thanks, but no thanks, ...