- Jun 9, 2013
- 6,720
Incident Report: March 31, 2017 (8:10 PM)
On Saturday, March 25th, security researcher Tavis Ormandy from Google’s Project Zero reported a security finding related to the LastPass browser extensions. In the last 24 hours, we’ve released an update which we believe fixes the reported vulnerability in all browsers and have verified this with Tavis himself.
Most users will be updated automatically. Please ensure you are running the latest version (4.1.44 or higher), which can always be downloaded at LastPass | Password Manager, Auto Form Filler, Random Password Generator & Secure Digital Wallet App.
Now that the issue is resolved, we want to provide a postmortem to our community on what the report entailed and how we are building a better, more secure LastPass going forward. Please note, due to the nature of the vulnerability, this postmortem is highly technical.
Overview
On Saturday, March 25th, security researcher Tavis Ormandy from Google’s Project Zero reported a security finding related to the LastPass browser extensions. In the last 24 hours, we’ve released an update which we believe fixes the reported vulnerability in all browsers and have verified this with Tavis himself.
Most users will be updated automatically. Please ensure you are running the latest version (4.1.44 or higher), which can always be downloaded at LastPass | Password Manager, Auto Form Filler, Random Password Generator & Secure Digital Wallet App.
Now that the issue is resolved, we want to provide a postmortem to our community on what the report entailed and how we are building a better, more secure LastPass going forward. Please note, due to the nature of the vulnerability, this postmortem is highly technical.
Overview
- This was a client-side vulnerability in the LastPass browser extensions and could be exploited to steal data and manipulate the LastPass extension
- Exploiting required luring a user to a malicious website (through phishing, spearphishing, or other attack), or to a trusted website running malicious adware
- This requires a per-user attack that must be executed through the user’s local browser
- All extensions have now been updated with the fix and submitted to the extension stores
- Our mobile apps for Android and iOS were not affected.