Feeds

IE 4 security bug latest

Yet another way for Web sites to sneak dodgy content onto your system

  • alert
  • submit to reddit

Intelligent flash storage arrays

Microsoft Internet Explorer 4's method of parsing IP addresses could allow unscrupulous Webmasters to run code on users' machines, it has emerged. The security hole centres on the way IE distinguishes between two alternative ways of formatting IP addresses. If the browser encounters an address in the commonly-used form of four numbers separated by dots, such as 1.2.3.4, it treats the address as a Web site. However, IP addresses can also be represented by a single value derived by expressing the four-number address as a power series of 256, ie. (1 x 256 x 256 x 256)+(2 x 256 x 256)+(3 x 256)+4. IE assumes such single-value IP addresses locate intranet-based sites. If the user has applied less stringent security checks to intranet-sourced content, as well they might, a malicious Web site administrator could use the hole to run active content on the user's computer without first obtaining the user's permission to download and run it. The glitch was discovered by Danish Webmaster Sune Hansen. Microsoft has since admitted the presence of the hole and, according to Windows platform product manager Mike Nichols, a patch is being prepared. ® Click for more stories

Top 5 reasons to deploy VMware with Tegile

More from The Register

next story
WHY did Sunday Mirror stoop to slurping selfies for smut sting?
Tabloid splashes, MP resigns - but there's a BIG copyright issue here
Spies, avert eyes! Tim Berners-Lee demands a UK digital bill of rights
Lobbies tetchy MPs 'to end indiscriminate online surveillance'
How the FLAC do I tell MP3s from lossless audio?
Can you hear the difference? Can anyone?
Inequality increasing? BOLLOCKS! You heard me: 'Screw the 1%'
There's morality and then there's economics ...
Google hits back at 'Dear Rupert' over search dominance claims
Choc Factory sniffs: 'We're not pirate-lovers - also, you publish The Sun'
EU to accuse Ireland of giving Apple an overly peachy tax deal – report
Probe expected to say single-digit rate was unlawful
While you queued for an iPhone 6, Apple's Cook sold shares worth $35m
Right before the stock took a 3.8% dive amid bent and broken mobe drama
prev story

Whitepapers

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.
Storage capacity and performance optimization at Mizuno USA
Mizuno USA turn to Tegile storage technology to solve both their SAN and backup issues.
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?
Beginner's guide to SSL certificates
De-mystify the technology involved and give you the information you need to make the best decision when considering your online security options.
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.