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Although each vulnerability will require specific treatment there are some lessons which can be learned from incident response disciplines which can be applied broadly. Vulnerabilities are discovered in commercial and open-source software on a regular basis. LastPass has already issued an update to address the Firefox vulnerability so ensure that your users are on the most recent version – 4.1.21a. for a patch and patch all affected systems as soon as reasonably possible. If you can grep them, the regex to discover passwords to "" being ex-filtrated using this method would look like this: LastPass' website. Check your web proxy logs for attempts to pass logins. If you suspect more than a login occurred, it may be time to start a breach investigation process.Īnother method to find compromised logins can be performed by searching your outgoing traffic for ex-filtrated logins. It may be reasonable to also investigate activity logs to see what a potential attacker did with the access. have that user do a password changing party for any stored logins in their password manager. Twitter (then check the "Login History" section) We're including links to common service providers to find recent login information: Perhaps you should contact the user by an alternative method and investigate. You should look for logins from unusual IPs, browsers, device OSs and times.Ī login from a Linux box when you don't support Linux? Organizational social media (Facebook, Twitter, Instagram) orĪssuming you do have important credentials stored in LastPass and users that may be on Firefox, consider taking the following steps to reduce your risk.įirst, audit logins for suspicious activity and evidence of compromise: All cloud services can give you basic information about successful logins. If you have logins to important business resources such as: Who is using it and what credentials do they have stored in it? If your organization uses LastPass, consider your use case:Ĭould any of your users have the an affected version installed?

All versions of LastPass 4 prior to 4.1.21a are vulnerable and should be updated immediately. In this instance, the vulnerability is isolated to the LastPass Firefox addon and a patch has already been issued. How should you react? VULN SPECIFIC STEPS Take, for example, the recently identified issues with LastPass ( here, here and here).

It might not be time to consider buying a new car, but you do need to assess the situation.

In some ways, this is like driving down the road when your car starts making an unusual sound. Do you scramble for a new solution, wait for a patch or just panic? Making important application decisions based on social-media rumblings isn't usually the best way to run an IT shop. It’s nerve-racking to read that a product that your company relies upon has a critical zero day vulnerability.