Simon Willison’s Weblog

Blogmarks tagged javascript, security in Oct

Filters: Type: blogmark × Month: Oct × javascript × security ×

Yahoo, Caja, OpenSocial. Yahoo!’s new application platform uses OpenSocial, and protects itself from malicious JavaScript using Google’s Caja secure JavaScript engine. I hadn’t realised that Caja was ready for production use—this is excellent news. # 30th October 2008, 5:14 pm

Dealing with UI redress vulnerabilities inherent to the current web (via) The best explanation of clickjacking I’ve seen yet, complete with discussion of a number of non-ideal potential solutions. It looks like frame busting JavaScript will defeat it, but only for users who have JavaScript enabled—which means that in this case extensions like NoScript actually make you less safe. UPDATE: NoScript is smarter than I thought; see the comments. # 7th October 2008, 9:59 am

Site-specific browsers and GreaseKit. New site-specific browser tool which lets you include a bunch of Greasemonkey scripts. For me, the killer feature of site-specific browsers is still cookie isolation (to minimise the impact of XSS and CSRF holes) but none of the current batch of tools advertise this as a feature, and most seem to want to share the system-wide cookie jar. # 25th October 2007, 7:56 am