November 2017
Intermediate to advanced
542 pages
14h 24m
English
Content preview from Spring Security - Third Edition
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Synchronizer tokens
A solution to this is to use the synchronizer token pattern. This solution is to ensure that each request requires, in addition to our session cookie, a randomly generated token as an HTTP parameter. When a request is submitted, the server must look up the expected value for the parameter and compare it to the actual value in the request. If the values do not match, the request should fail.
The Cross-Site Request Forgery (CSRF) Prevention Cheat Sheet recommends the synchronizer token pattern as a viable solution for CSRF attacks: https://www.owasp.org/index.php/Cross-Site_Request_Forgery_(CSRF)_Prevention_Cheat_Sheet#General_Recommendation:_Synchronizer_Token_Pattern
Relaxing the expectation is to only require the token ...
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