The Register® — Biting the hand that feeds IT

Security glitch bites IE7 beta

Crash test dummy

Free whitepaper – Securing your online data transfer with SSL

Researchers have discovered a security vulnerability in a preview version of Microsoft's Internet Explorer 7 (IE7) browser just days after its release. A denial of service bug in IE 7 beta 2 creates a means for a hacker to crash the software and potentially execute arbitrary malware on PCs running the code, according to security researcher Tom Ferris. Ferris has produced a proof of concept demo to illustrate his concern that IE 7 beta 2 builds are exposed to the "medium risk" flaw.

Microsoft has responded in a posting on its official IE development blog to confirm the the bug identified by Ferris does crash IE 7. "However, we did not find that the bug was exploitable by default to elevate privilege and run arbitrary code," it said. Microsoft said it identified the bug itself during a code review and that a fix was already in development. Redmond adds that the bug is difficult to exploit and isn't the subject of current hacker attacks.

Other issues with the latest build of the browser have been unearthed during early testing. Compatibility problems with McAfee security software and glitches that cause the browser to crash when visiting certain websites have emerged. Since IE 7 is undergoing beta testing, these kind of bugs are to be expected. ®

Free whitepaper – The starter PKI program

Don’t Miss

GoogleGoogle cloud told to encrypt itself

Updated R in RSA wants s in https

thumbs down teaser 75Buggy 'smart meters' open door to power-grid botnet

Grid-burrowing worm only the beginning

Flag ChinaChinese firm hits back at cyberspy claims

Exclusive Huawei welcomes UK.gov backdoor probe

BlockMaster SafeStickBlockMaster SafeStick hardware-encrypted USB drive

Review Tough enough?