Winnipeg Free Press - PRINT EDITION

Getting to the heart of the bug

  • Print

The Heartbleed bug sounds like a nasty coronary condition. It actually is a software flaw that has left as many as two-thirds of the world's websites vulnerable to attack by hackers.

"This is potentially the most dangerous bug that we have seen for a long, long time," says James Beeson, the chief information-security officer of G.E. Capital Americas, an arm of General Electric.

Since April 7, when its existence was revealed by researchers at Google and Codenomicon, a security firm, countless companies around the world that rely on the Internet for part or all of their business have been scrambling to fix the flaw.

Ironically, the bug was discovered in Open SSL, encryption software that was designed to make the Internet more secure. Available free, this open-source code is popular with businesses and governments, which use it to help secure everything from online credit-card transactions to public services. On April 9, for instance, Canada's tax authority shut off public access to its online services while it checked the security of its systems in the light of news about the bug.

The flaw makes it possible for hackers to trick a server into spewing out data held in its memory. Open SSL has a feature known as a "heartbeat" that allows a computer at one end of an encrypted link to send occasional signals to the computer at the other end of it, to check that it is still online. The researchers discovered a hacker with knowledge of the bug could replicate this signal and use it to steal all manner of data from a remote computer.

Those data could include encryption keys that let hackers decipher traffic. To make matters worse, the researchers found the bug, which is present in some versions of Open SSL that have been available since March 2012, allows attacks to be mounted without leaving a trace in targeted computers' "server logs," meaning victims are unaware their systems have been compromised. In other words, it is impossible to tell for sure what damage has been done.

The bug has forced companies to find out fast how many of their systems employ the vulnerable versions of Open SSL.

"Everyone knows they have to patch their customer-facing Internet websites," says Jonathan Sander of Stealthbits Technologies, a security firm that is helping one of America's biggest banks work out where it has deployed the buggy software, "but that is only the tip of the iceberg."

Web-connected systems that handle things such as accounting and personnel data will also need to be checked for the bug, he says.

Sander likens the discovery of the Heartbleed bug to finding a faulty part in nearly every make and model of car. The problem is the Internet cannot be recalled. Big web companies such as Google and Yahoo have moved fast to deal with the bug, but millions of smaller e-commerce sites and other businesses face the worrying prospect of being attacked by hackers, newly alerted to the bug's existence, even as the firms race to fix the problem.

The cure includes applying a software "patch" and then choosing new encryption keys to replace those that may have been compromised. Once this has been done, customers often will need to change their passwords. Tumblr, a blogging service owned by Yahoo, has urged its users to change the passwords they use for all of the secure online services that hold sensitive data about them. Some companies even chose to suspend services while they were working on a fix. Bitstamp, a bitcoin e-currency exchange, temporarily suspended new account registrations and log-ins to its existing accounts.

Perhaps the risk posed by the Heartbleed bug will turn out to be overblown. If it emerges companies' systems have indeed been hacked because of it, however, this could open a legal can of worms.

Firms could argue they ought not to be punished for using widely trusted security software. However, aggrieved customers -- and their lawyers -- may see things differently.

How the bug got into the Open SSL software in the first place is a mystery. Bruce Schneier, an Internet-security expert, argues in a blog post "the probability is close to one" that intelligence agencies have exploited the glitch to nab the encryption keys needed to decipher information about their targets.

His guess is the glitch is the result of a coding error, rather than the handiwork of spies, though he cannot be sure.

No matter who is to blame, this episode is another reminder of the security challenges companies face as ever more economic activity shifts online.

According to e-Marketer, a research company, worldwide business-to-consumer e-commerce sales are likely to grow by slightly more than a fifth this year, to $1.5 trillion. That is a huge commercial opportunity, but it also will encourage cyber-crooks to target businesses even more vigorously.

Expect more computer-security heartburn in boardrooms.

Republished from the Winnipeg Free Press print edition April 14, 2014 A9

Fact Check

Fact Check

Have you found an error, or know of something we’ve missed in one of our stories?
Please use the form below and let us know.

* Required
  • Please post the headline of the story or the title of the video with the error.

  • Please post exactly what was wrong with the story.

  • Please indicate your source for the correct information.

  • Yes

    No

  • This will only be used to contact you if we have a question about your submission, it will not be used to identify you or be published.

  • Cancel

Having problems with the form?

Contact Us Directly
  • Print

You can comment on most stories on winnipegfreepress.com. You can also agree or disagree with other comments. All you need to do is be a Winnipeg Free Press print or e-edition subscriber to join the conversation and give your feedback.

You can comment on most stories on winnipegfreepress.com. You can also agree or disagree with other comments. All you need to do is be a Winnipeg Free Press print or e-edition subscriber to join the conversation and give your feedback.

Have Your Say

New to commenting? Check out our Frequently Asked Questions.

Have Your Say

Comments are open to Winnipeg Free Press print or e-edition subscribers only. why?

Have Your Say

Comments are open to Winnipeg Free Press Subscribers only. why?

The Winnipeg Free Press does not necessarily endorse any of the views posted. By submitting your comment, you agree to our Terms and Conditions. These terms were revised effective April 16, 2010.

letters

Make text: Larger | Smaller

LATEST VIDEO

The Whiteboard - Jets' 5-on-3 penalty kill

View more like this

Photo Store Gallery

  • Marc Gallant / Winnipeg Free Press. Local- Weather standup. Sundog. Refraction of light through ice crystals which caused both the sun dog and and fog along McPhillips Road early Wednesday morning. 071205.
  • Young goslings are growing up quickly near Cresent Lake in Portage La Prairie, Manitoba- See Bryksa 30 Day goose project- Day 11- May 15, 2012   (JOE BRYKSA / WINNIPEG FREE PRESS)

View More Gallery Photos

Poll

What's your take on the Jets so far this season?

View Results

View Related Story

Ads by Google