UpShot fires off CRM app upgrade

Shortly after Microsoft admitted that its MSN Messenger instant messaging program has a bug that could disclose the names and e-mail addresses on a user's contact list, the company is being confronted with what seems to be a bigger hole.

A malicious Web site operator can hijack a user's MSN Messenger application and perform all tasks, including sending messages and personal files, according to a bulletin posted on the Bugtraq mailing list on Saturday and a warning issued by security software firm Finjan Software Ltd. on Sunday.

To take over a user's MSN Messenger program, an attacker has to exploit a known hole in Internet Explorer by sending specially crafted code in an HTML (Hypertext Markup Language) e-mail or directing the user to a Web site that contains that code, according to the security advisories.

The Internet Explorer hole, known as the Document.Open() bug, was first discovered in December. Microsoft has yet to plug the hole. A patch was initially published late last week, only to be removed from the Windows Update service hours later, according to a message on Tom Gilder's Web site (http://www.tom.me.uk/msn). Gilder wrote the Bugtraq bulletin.

Finjan expects the flaw to be exploited by many and states that an "MSN Messenger worm" could be written based on this vulnerability. MSN Messenger 2.21 and above on systems with Internet Explorer 5.5. and 6.0 installed are vulnerable, according to Finjan.

Users can protect themselves by disabling active scripting in Internet Explorer or by not using MSN Messenger, which is software offered for free by Microsoft and is a standard part of Windows XP.

Microsoft on Friday confirmed that MSN Messenger has a bug that could disclose the names and e-mail addresses on a user's contact list to malicious Web site operators. The company is working on an update for MSN Messenger to fix that flaw.

Nobody at Microsoft was immediately available for comment.

Join the PC World newsletter!

Error: Please check your email address.

Our Back to Business guide highlights the best products for you to boost your productivity at home, on the road, at the office, or in the classroom.

Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

Joris Evers

Computerworld
Show Comments

Most Popular Reviews

Latest News Articles

Resources

PCW Evaluation Team

Azadeh Williams

HP OfficeJet Pro 8730

A smarter way to print for busy small business owners, combining speedy printing with scanning and copying, making it easier to produce high quality documents and images at a touch of a button.

Andrew Grant

HP OfficeJet Pro 8730

I've had a multifunction printer in the office going on 10 years now. It was a neat bit of kit back in the day -- print, copy, scan, fax -- when printing over WiFi felt a bit like magic. It’s seen better days though and an upgrade’s well overdue. This HP OfficeJet Pro 8730 looks like it ticks all the same boxes: print, copy, scan, and fax. (Really? Does anyone fax anything any more? I guess it's good to know the facility’s there, just in case.) Printing over WiFi is more-or- less standard these days.

Ed Dawson

HP OfficeJet Pro 8730

As a freelance writer who is always on the go, I like my technology to be both efficient and effective so I can do my job well. The HP OfficeJet Pro 8730 Inkjet Printer ticks all the boxes in terms of form factor, performance and user interface.

Michael Hargreaves

Windows 10 for Business / Dell XPS 13

I’d happily recommend this touchscreen laptop and Windows 10 as a great way to get serious work done at a desk or on the road.

Aysha Strobbe

Windows 10 / HP Spectre x360

Ultimately, I think the Windows 10 environment is excellent for me as it caters for so many different uses. The inclusion of the Xbox app is also great for when you need some downtime too!

Mark Escubio

Windows 10 / Lenovo Yoga 910

For me, the Xbox Play Anywhere is a great new feature as it allows you to play your current Xbox games with higher resolutions and better graphics without forking out extra cash for another copy. Although available titles are still scarce, but I’m sure it will grow in time.

Featured Content

Latest Jobs

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?