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Content Provider | ACM Digital Library |
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Author | Wang, XiaoFeng Li, Zhou |
Abstract | The wide use of Flash technologies makes the security risks posed by Flash content an increasingly serious issue. Such risks cannot be effectively addressed by the Flash player, which either completely blocks Flash content's access to web resources or grants it unconstrained access. Efforts to mitigate this threat have to face the practical challenges that Adobe Flash player is closed source, and any changes to it need to be distributed to a large number of web clients. We demonstrate in this paper, however, that it is completely feasible to avoid these hurdles while still achieving fine-grained control of the interactions between Flash content and its hosting page. Our solution is FIRM, a system that embeds an inline reference monitor (IRM) within the web page hosting Flash content. The IRM effectively mediates the interactions between the content and DOM objects, and those between different Flash applications, using the capability tokens assigned by the web designer. FIRM can effectively protect the integrity of its IRM and the confidentiality of capability tokens. It can be deployed without making any changes to browsers. Our evaluation based upon real-world web applications and Flash applications demonstrates that FIRM effectively protects valuable user information and incurs small overhead. |
Starting Page | 181 |
Ending Page | 190 |
Page Count | 10 |
File Format | |
ISBN | 9781450301336 |
DOI | 10.1145/1920261.1920289 |
Language | English |
Publisher | Association for Computing Machinery (ACM) |
Publisher Date | 2010-12-06 |
Publisher Place | New York |
Access Restriction | Subscribed |
Subject Keyword | Cross-site scripting Inline reference monitor Adobe flash |
Content Type | Text |
Resource Type | Article |
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