Simon Willison’s Weblog

Items tagged security, json in 2007

Filters: Year: 2007 × security × json ×


JSON and Browser Security. Douglas Crockford suggests using secret tokens to protect JSON content, and avoiding wrapper hacks to protect unauthorised JSON delivery as they may fall foul of undiscovered browser bugs in the future. # 11th April 2007, 12:52 am

Fortify JavaScript Hijacking FUD. Bob Ippolito points out the flaws in the recent widely disseminated JavaScript Hijacking paper. While the paper does miss some important details, it’s good that more people are now aware of the security implications involved in serving JSON up wrapped in an array. # 5th April 2007, 10:51 pm

Security; AJAX; JSON; Satisfaction. The JSON attack I linked to earlier only works against raw arrays, which technically aren’t valid JSON anyway. # 6th March 2007, 8:06 am

JSON is not as safe as people think it is. Joe Walker reminds us that even authenticated JSON served without a callback or variable assignment is vulnerable to CSRF in Firefox, thanks to that browser letting you redefine the Array constructor. # 5th March 2007, 10:51 pm

Safe JSON (via) Subtle but important point about JSON APIs: you shouldn’t use a callback or variable assignment for JSON incorporating private user data, especially if it’s at a predictable URL. # 2nd March 2007, 1:11 pm

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