Feeds

Bug puts net's most popular DNS app in Bind

Rare but remote

Top 5 reasons to deploy VMware with Tegile

Makers of Bind have warned of a security vulnerability in versions of the domain name resolution application that could allow attackers to trick servers into returning unauthorized results.

The bug in the Berkeley Internet Name Domain program surfaces only when the DNSSEC security implementation is enabled and the name server accepts queries from the internet at large, a designation known as recursive. The combination of name servers being both recursive and using DNSSEC to validate records is rare, according to this advisory from the Internet Systems Consortium, which maintains Bind.

But DNS servers that are so configured may at risk of attacks that can be remotely launched. "A nameserver with DNSSEC validation enabled may incorrectly add records to its cache from the additional section of responses received during resolution of a recursive client query," ISC representatives wrote.

Bind is the internet's most widely used domain name system software. It is used to translate domain names into numeric IP addresses. DNSSEC is designed to cryptographically authenticate servers that provide DNS look-up information to ensure it is authentic.

Administrators are advised to upgrade Bind to version 9.4.3-P4, 9.5.2-P1, or 9.6.1-P2. There are no fixes for versions 9.0 through 9.3, which are being phased out. Those not able to immediately patch can restrict recursion. ®

Top 5 reasons to deploy VMware with Tegile

More from The Register

next story
UK smart meters arrive in 2020. Hackers have ALREADY found a flaw
Energy summit bods warned of free energy bonanza
DRUPAL-OPCALYPSE! Devs say best assume your CMS is owned
SQLi hole was hit hard, fast, and before most admins knew it needed patching
Knock Knock tool makes a joke of Mac AV
Yes, we know Macs 'don't get viruses', but when they do this code'll spot 'em
Feds seek potential 'second Snowden' gov doc leaker – report
Hang on, Ed wasn't here when we compiled THIS document
Mozilla releases geolocating WiFi sniffer for Android
As if the civilians who never change access point passwords will ever opt out of this one
Why weasel words might not work for Whisper
CEO suspends editor but privacy questions remain
prev story

Whitepapers

Why and how to choose the right cloud vendor
The benefits of cloud-based storage in your processes. Eliminate onsite, disk-based backup and archiving in favor of cloud-based data protection.
A strategic approach to identity relationship management
ForgeRock commissioned Forrester to evaluate companies’ IAM practices and requirements when it comes to customer-facing scenarios versus employee-facing ones.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?
Top 5 reasons to deploy VMware with Tegile
Data demand and the rise of virtualization is challenging IT teams to deliver storage performance, scalability and capacity that can keep up, while maximizing efficiency.
Mitigating web security risk with SSL certificates
Web-based systems are essential tools for running business processes and delivering services to customers.