Automatic context-sensitive sanitization
US8898776B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2010 |
| Grant date | Nov 25, 2014 |
| Priority date | — |
| Expiry date | Oct 29, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/1433
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An automatic context-sensitive sanitization technique detects errors due to the mismatch of a sanitizer sequence with a browser parsing context. A pre-deployment analyzer automatically detects violating paths that contain a sanitizer sequence that is inconsistent with a browsing context associated with outputting an untrusted input. The pre-deployment analyzer determines a correct sanitizer sequence which is stored in a sanitization cache. During the runtime execution of the web application, a path detector tracks execution of the web application in relation to the violating paths. The correct sanitizer sequence can be applied when the runtime execution follows a violating path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.