Feeds

Security flaw in MS Exchange patch

Pre-packaged for your convenience

  • alert
  • submit to reddit

The Power of One eBook: Top reasons to choose HP BladeSystem

Users of MS Exchange 5.5 or Exchange 2K with OWA (Outlook Web Access) implemented -- including those 2K users who patched their systems last week -- need to install an updated patch as soon as possible because the one issued earlier for Exchange 2K contains outdated files, and the vulnerability in 5.5 went unnoticed at first.

The Exchange vulnerability in question executes scripts in HTML e-mail attachments handled by OWA, and could enable an attacker to access a user’s mailbox with the user's level of permission.

MS says that, "under certain circumstances," these actions could include "manipulation of messages or folders."

By the handy euphemism "manipulation of messages" Microsoft means the attacker can take over and then spam the known universe in your name, threaten the lives of heads of state in your name, confess multiple, cross-gender and inter-generational infidelities to your spouse in your name....you get the picture.

"We recommend that all customers who have downloaded the Exchange 2000 patch prior to June 12, 2001 install the updated version," MS says in its most recent Exchange security bulletin.

Additionally, the original Exchange 2K patch and associated security bulletin were issued before MS discovered that the vulnerability also affects 5.5 (and probably older, unsupported versions which they didn't bother to check).

Thus if you're running 5.5, you might have been led to believe last week that your system isn't affected and promptly lost interest in this little stuff-up -- but not to worry, there's a patch for you too; and MS has every confidence that it won't have to be re-issued next week. ®

Related Links

The new 5.5 patch
The new and improved 2K patch

Related Story

MS patches Exchange 2000 email spy bug

Boost IT visibility and business value

More from The Register

next story
HIDDEN packet sniffer spy tech in MILLIONS of iPhones, iPads – expert
Don't panic though – Apple's backdoor is not wide open to all, guru tells us
NO MORE ALL CAPS and other pleasures of Visual Studio 14
Unpicking a packed preview that breaks down ASP.NET
Captain Kirk sets phaser to SLAUGHTER after trying new Facebook app
William Shatner less-than-impressed by Zuck's celebrity-only app
Apple fanbois SCREAM as update BRICKS their Macbook Airs
Ragegasm spills over as firmware upgrade kills machines
Cheer up, Nokia fans. It can start making mobes again in 18 months
The real winner of the Nokia sale is *drumroll* ... Nokia
Mozilla fixes CRITICAL security holes in Firefox, urges v31 upgrade
Misc memory hazards 'could be exploited' - and guess what, one's a Javascript vuln
EU dons gloves, pokes Google's deals with Android mobe makers
El Reg cops a squint at investigatory letters
Chrome browser has been DRAINING PC batteries for YEARS
Google is only now fixing ancient, energy-sapping bug
prev story

Whitepapers

Top three mobile application threats
Prevent sensitive data leakage over insecure channels or stolen mobile devices.
Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Top 8 considerations to enable and simplify mobility
In this whitepaper learn how to successfully add mobile capabilities simply and cost effectively.
Application security programs and practises
Follow a few strategies and your organization can gain the full benefits of open source and the cloud without compromising the security of your applications.
The Essential Guide to IT Transformation
ServiceNow discusses three IT transformations that can help CIO's automate IT services to transform IT and the enterprise.