Lock Browser 5.3 (Browser Security, Open Source, Python)

[David Leo <david.leo () lockbrowser com>]

SUMMARY
This open source tool strictly controls what web browser can access, which stops web browser from loading harmful 
content - Phishing, Non-Secure HTTP, or whatever that's not in your whitelist.

SITUATION
"Security flaws in Google Chrome, Microsoft Edge, and Apple Safari were all successfully exploited... browsers as well 
as Windows, OS X, and Flash"
http://venturebeat.com/2016/03/18/pwn2own-2016-chrome-edge-and-safari-hacked-460k-awarded-in-total/

ATTACK
Attacks have to make target's browser load attacker's website, which has two scenarios - send the link(phishing), or 
control a website that target will visit. The latter is difficult because web servers are usually(not always) much more 
secure than web browsers, and attackers simply don't know which websites. The former, Phishing, is "mainstream", 
because it's a lot easier: the address of email sender can be faked, the content of email can look 100% legitimate and 
compelling, and the URL can hide behind redirection service("dereferer" of email system, t.co, or whatever).

SOLUTION
Whitelist - for example, the whitelist contains Gmail, PayPal, Chase, GitHub, and Twitter. Attacker's website is not in 
the whitelist, so the harmful content does not reach browser, even if some users are "stupid enough" to click links 
from The Phishing Guy.

URLs
Project Home Page: https://www.lockbrowser.com/
Source Code: https://www.lockbrowser.com/source/

HISTORY
It's fork of HTTPS Only released in March:
http://seclists.org/fulldisclosure/2016/Mar/77
And this is likely the last version - because the source code is so short and simple, maybe there is really no bug 
here! Let me hope so.

Kind Regards,


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