Feeds

Information disclosure bug blights IE7 release

Plus ça change

SANS - Survey on application security programs

Security researchers have already discovered an information disclosure vulnerability in IE7 hours after the release (story here) of Microsoft's long-awaited browser software upgrade.

The flaw stems from error in the handling of redirections for URLs with the "mhtml:" URI handler. Security notification firm Secunia reports that the same bug was discovered six months ago in IE6 but remains unresolved. In any case, the flaw has managed to find its way into the code-base of IE7.

The vulnerability - rated as "less critical" by Secunia, the first to warn of the problem - might be used to access documents served from another web site. So the security bug lends itself to possible misuse in various scam and phishing attacks, Thomas Kristensen, CTO of security notification firm Secunia, told El Reg.

Secunia has produced up a test, featuring proof-of-concept code, in order to illustrate the problem

Since IE7 has just been released, and therefore has a negligible user base, real-life exploitation is somewhat unlikely, at least for now, and the IE6 version of the exploit hasn't been used much in anger, to the best of our knowledge at least. But discovery of the flaw suggests that IE7, just like IE6 and previous versions of Microsoft's browser software, will require regular patching despite much-touted (and not inconsequential) security improvements.

Some security bugs in IE7 were discovered during the development process while others are (doubtless) awaiting discovery. In February, security researcher Tom Ferris discovered a means to crash preview (beta 2) versions of IE7. Microsoft promised to fix the problem. ®

High performance access to file storage

More from The Register

next story
Obama allows NSA to exploit 0-days: report
If the spooks say they need it, they get it
Samsung Galaxy S5 fingerprint scanner hacked in just 4 DAYS
Sammy's newbie cooked slower than iPhone, also costs more to build
Putin tells Snowden: Russia conducts no US-style mass surveillance
Gov't is too broke for that, Russian prez says
Snowden-inspired crypto-email service Lavaboom launches
German service pays tribute to Lavabit
Mounties always get their man: Heartbleed 'hacker', 19, CUFFED
Canadian teen accused of raiding tax computers using OpenSSL bug
One year on: diplomatic fail as Chinese APT gangs get back to work
Mandiant says past 12 months shows Beijing won't call off its hackers
Call of Duty 'fragged using OpenSSL's Heartbleed exploit'
So it begins ... or maybe not, says one analyst
prev story

Whitepapers

Top three mobile application threats
Learn about three of the top mobile application security threats facing businesses today and recommendations on how to mitigate the risk.
Combat fraud and increase customer satisfaction
Based on their experience using HP ArcSight Enterprise Security Manager for IT security operations, Finansbank moved to HP ArcSight ESM for fraud management.
The benefits of software based PBX
Why you should break free from your proprietary PBX and how to leverage your existing server hardware.
Five 3D headsets to be won!
We were so impressed by the Durovis Dive headset we’ve asked the company to give some away to Reg readers.
SANS - Survey on application security programs
In this whitepaper learn about the state of application security programs and practices of 488 surveyed respondents, and discover how mature and effective these programs are.