LastPass LastPass discloses now-fixed flaws ahead of security conference

[Ponting]

Popular password manager LastPass said it fixed two vulnerabilities that were found last year. The disclosure comes just ahead of a security conference where a research paper describing the problems is due to be presented.

Zhiwei Li, a research scientist at Shape Security, reported the flaws to LastPass in August 2013, which were "addressed immediately," LastPass wrote on its blog.

Both flaws involved "bookmarklets," which assist in filling out stored password information when LastPass's plugin can't be used, such as when using a mobile browser.

One flaw could be exploited if a bookmarklet was used on a website rigged to attack it, LastPass wrote. The other vulnerability could allow an attacker to create a bogus one-time password (OTP) if a LastPass user was tricked into visiting a malicious website.

The OTP attack would require a hacker to know a person's username in order to exploit it and also serve a custom attack, LastPass wrote.

"Even if this was exploited, the attacker would still not have the key to decrypt user data," the company said.

Zhiwei co-authored a research paper that has been accepted by the Usenix Security Symposium, which starts in San Diego on Aug. 20.

The study analyzed five popular Web-based password managers: LastPass, RoboForm, My1login, PasswordBox and NeedMyPassword, all of which run in a Web browser.

The researchers wrote that "in four out of the five password managers we studied, an attacker can learn a user's credentials for arbitrary websites."

LastPass wrote it didn't believe anyone other than Zhiwei exploited the flaws. Still, "if you are concerned that you've used bookmarklets before September 2013 on non-trustworthy sites, you may consider changing your master password and generating new passwords, though we don't think it is necessary."

Source: http://www.computerworld.com/s/article/9249694/LastPass_discloses_now_fixed_flaws_ahead_of_security_conference

[shorty6100]

Been using LastPass for years without any issues-I will continue using it.

[ChiliBean]

Been using LastPass for years without any issues-I will continue using it.

Me too. I also use COMODO Internet Security Premium (free), ZenMate (free), and KeyScrambler. Should also try to look into full disc encryption. I think I'm getting paranoid. LoL!

Edited July 15, 2014 by ChiliBean

[Holmes]

I dont use a password manager I remember them or write them down on paper making it a impossibility to hack unless you brute force it or use a keylogger if I used a password manager Im probably going to pick lastpass I know most people think if its the most popular its the most insecure hackers target the most popular that answer is sure it also depends how well its coded also people forget the most popular is going to get the most attention not just from hackers from the developers to white hat grey hat hackers also target the most popular and help increase the strength of it when black hat hackers expose a vulnerability it usually gets fixed fast this sometimes happens. I choose not to get a password manager that isnt popular as sometimes the developers can choose to stop supporting it and development stops there are other reasons those are from the top of my head..