Menu
Flaw with password manager LastPass could hand over control to hackers

Flaw with password manager LastPass could hand over control to hackers

The exploits require tricking a user to visiting a malicious website

Even password manager LastPass can be fooled. A Google security researcher has found a way to remotely hijack the software.

It works by first luring the user to a malicious site. The site will then exploit a flaw in a LastPass add-on for the Firefox browser, giving it control over the password management software.

LastPass wrote about the vulnerability on Wednesday and said that a fix is already out for Firefox users.

Google security research Tavis Ormandy first discovered the issue. When examining the password manager, he tweeted on Tuesday, "Are people really using this lastpass thing? I took a quick look and can see a bunch of obvious critical problems. I'll send a report asap."

Any vulnerability with LastPass could pose a big risk for users. The popular software is supposed to securely store and autofill all the passwords users have for their different sites.

Ormandy isn't the only security researcher to find flaws with the password manager. On Wednesday, Mathias Karlsson at Detectify Labs said that he had also managed to hack LastPass – in this case, to steal user passwords.

He did so by exploiting a bug in the password manager's Chrome browser extension, Karlsson wrote in a blog post.

Typically, the LastPass browser extension autofills the password to certain websites the user visits. However, Karlsson noticed that the extension added some HTML code to every site it visits. This code is meant to parse the website's address to identify the domain and then fill in the required password.

The problem is that the HTML code can be tricked. The extension will autofill a user's password, even when it isn’t visiting the correct website.

Karlsson exploited the bug, and created a fake URL, fooling the LastPass browser extension into thinking it was visiting Twitter. The extension then autofilled the Twitter password into the site.

A hacker could take advantage of this flaw, by building a malicious website and tricking LastPass users into visiting it. The website could then secretly collect the passwords.

Karlsson reported the bug over a year ago, and the problem has since been fixed, according to LastPass. It noted that both vulnerabilities would require the hacker tricking the user into visiting a malicious site for them to work. 

The company is advising users to be on the watch for phishing attacks that can send links to unsavory websites. 


Follow Us

Join the newsletter!

Or

Sign up to gain exclusive access to email subscriptions, event invitations, competitions, giveaways, and much more.

Membership is free, and your security and privacy remain protected. View our privacy policy before signing up.

Error: Please check your email address.

Featured

Slideshows

Meet the leading female front runners of the Kiwi channel

Meet the leading female front runners of the Kiwi channel

Reseller News honoured the leading female front runners of the New Zealand channel at the 2018 Women in ICT Awards (WIICTA) in Auckland. The awards honoured standout individuals across seven categories, spanning Entrepreneur; Innovation; Rising Star; Shining Star; Community; Technical and Achievement.

Meet the leading female front runners of the Kiwi channel
Meet the top performing customer-centric Microsoft channel partners

Meet the top performing customer-centric Microsoft channel partners

Microsoft honoured leading partners across the channel following a year of customer innovation and market growth in New Zealand. The 2018 Microsoft Partner Awards recognised excellence within the context of the end-user, spanning a host of emerging and established providers.

Meet the top performing customer-centric Microsoft channel partners
Reseller News launches new-look Awards at 2018 Judges’ Lunch

Reseller News launches new-look Awards at 2018 Judges’ Lunch

Introducing the Reseller News Innovation Awards, launched to the channel at the 2018 Judges’ Lunch in Auckland. With more than 70 judges now part of the voting panel, the new-look awards will reflect the changing dynamics of the channel, recognising excellence across customer value and innovation - spanning start-ups, partners, distributors and vendors.

Reseller News launches new-look Awards at 2018 Judges’ Lunch
Show Comments