Feeds

Microsoft squashes Hotmail password hijack bug

Hackers offer to crack accounts for £12

Build a business case: developing custom apps

Microsoft has smacked down a Hotmail bug that allowed hackers to lock users out of their own accounts.

Redmond took one day to slap down a glitch that allowed anyone with a Firefox add-on to remotely reset the password of a Hotmail account. The Tamper Data add-on allowed hackers to siphon off the outgoing HTTP request from the browser in real time and then modify the data.

When they hit a password reset on a given email account they could fiddle the requests and input in a reset they chose. Vulnerability-lab.com outlined the details:

Remote attackers can bypass the password recovery service to set up a new password and bypass in place protections (token based). The token protection only checks if a value is empty, then blocks or closes the web session. A remote attacker can, for example, bypass the token protection with values “+++)-“. Successful exploitation results in unauthorized MSN or Hotmail account access.

The bug seems to have been around for a while, but has recently been targeted by hackers on a larger scale. Blog whitec0de pointed out that hackers online were advertising to crack Hotmail accounts for as little as $20 (£12).

According to the vulnerability-lab.com report: Microsoft was alerted to the flaw on 20 April, and got a fix out on 21 April, one day later. They went public with the fix yesterday.

Hotmail has 364 million users, according to a comscore report from 2010. ®

Endpoint data privacy in the cloud is easier than you think

More from The Register

next story
14 antivirus apps found to have security problems
Vendors just don't care, says researcher, after finding basic boo-boos in security software
'Things' on the Internet-of-things have 25 vulnerabilities apiece
Leaking sprinklers, overheated thermostats and picked locks all online
iWallet: No BONKING PLEASE, we're Apple
BLE-ding iPhones, not NFC bonkers, will drive trend - marketeers
Multipath TCP speeds up the internet so much that security breaks
Black Hat research says proposed protocol will bork network probes, flummox firewalls
Only '3% of web servers in top corps' fully fixed after Heartbleed snafu
Just slapping a patched OpenSSL on a machine ain't going to cut it, we're told
Microsoft's Euro cloud darkens: US FEDS can dig into foreign servers
They're not emails, they're business records, says court
How long is too long to wait for a security fix?
Synology finally patches OpenSSL bugs in Trevor's NAS
Israel's Iron Dome missile tech stolen by Chinese hackers
Corporate raiders Comment Crew fingered for attacks
prev story

Whitepapers

7 Elements of Radically Simple OS Migration
Avoid the typical headaches of OS migration during your next project by learning about 7 elements of radically simple OS migration.
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.
Consolidation: The Foundation for IT Business Transformation
In this whitepaper learn how effective consolidation of IT and business resources can enable multiple, meaningful business benefits.
Solving today's distributed Big Data backup challenges
Enable IT efficiency and allow a firm to access and reuse corporate information for competitive advantage, ultimately changing business outcomes.
A new approach to endpoint data protection
What is the best way to ensure comprehensive visibility, management, and control of information on both company-owned and employee-owned devices?