|Summary:||[meta] XSSAuditor should have fewer false negatives|
|Product:||WebKit||Reporter:||Adam Barth <abarth>|
|Component:||WebCore Misc.||Assignee:||Nobody <webkit-unassigned>|
|Version:||528+ (Nightly build)|
|Bug Depends on:||27895, 29278, 66580, 66585, 66588, 66850, 67091, 67134, 68094, 68281, 70255|
Description Adam Barth 2011-08-19 13:26:50 PDT
Currently the XSSAuditor has very few false positives, but it does have a number of false negatives. False negatives a problematic because they let attackers bypass the filter, negating some of its security benefits. False positives fall into two categories: 1) Tricky injections into in-scope injection contexts. 2) Injections into out-of-scope injection contexts. Whether an injection context is in-scope is somewhat of an arbitrary distinction, but we should aim to tackle all the tricky injection vectors for the in-scope injection contexts before we expand to consider more contexts in-scope. This approach puts us on a path to eliminating all the attack vectors for a given set of vulnerabilities rather than catching some, but not all, the attack vectors for a large number of vulnerabilities. Let's use this bug as a meta bug for Type 1 vulnerabilities (which will appear as blocking this bug).