Feeds

The IE back-button attack

We're not making this up

  • alert
  • submit to reddit

Secure remote control for conventional and virtual desktops

Swedish security researcher Andreas Sandblad has discovered that the MS Internet Explorer history list allows JavaScript in the URLs. The code will execute in the same zone as the last URL visited, which in the case of the error page generated by IE is the local computer zone. Thus when an error page is generated, JavaScript can be injected into the history and executed by use of the back button.

To illustrate it, Sandblad created a little script which works nicely. Just choose the appropriate link, follow it, and then hit the back button. Big laffs.

The script should work on most IE browsers but has been tested only with IE-6 on Win-2K and XP, according to Sandblad's recent posting to the BugTraq mailing list, where you can get a copy and play with it.

We've confirmed it for IE-6 on Win-XP Pro, and several readers have reported that IE-5 is also affected. We've also heard that McAfee and NAV will block it.

MS was notified on 12 November 2001, and reminded on 25 March 2002, Sandblad says. Apparently they're not as worried as the major anti-virus vendors. ®

Providing a secure and efficient Helpdesk

More from The Register

next story
Microsoft WINDOWS 10: Seven ATE Nine. Or Eight did really
Windows NEIN skipped, tech preview due out on Wednesday
Business is back, baby! Hasta la VISTA, Win 8... Oh, yeah, Windows 9
Forget touchscreen millennials, Microsoft goes for mouse crowd
Apple: SO sorry for the iOS 8.0.1 UPDATE BUNGLE HORROR
Apple kills 'upgrade'. Hey, Microsoft. You sure you want to be like these guys?
ARM gives Internet of Things a piece of its mind – the Cortex-M7
32-bit core packs some DSP for VIP IoT CPU LOL
Microsoft on the Threshold of a new name for Windows next week
Rebranded OS reportedly set to be flung open by Redmond
Lotus Notes inventor Ozzie invents app to talk to people on your phone
Imagine that. Startup floats with voice collab app for Win iPhone
'Google is NOT the gatekeeper to the web, as some claim'
Plus: 'Pretty sure iOS 8.0.2 will just turn the iPhone into a fax machine'
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.