Secure end-to-end browsing system with mobile composition

To fix the more and more serious leakage problem in remote access to confidential data, the paper designs and implements a secure end-to-end browsing system with mobile composition. It enables mobile-authenticated users to browse confidential files stored at server side using their personal computers securely. The authentication function is in real-time such that the system can stop the browsing function once it detects that the authenticated mobile is out of the communication range of user's personal computer. © 2011 IEEE.published_or_final_versio

World Wide Web Without Walls

Today's Web is built upon a particular symbiotic relationship betweensites and users: the sites invest capital to create and market a setof features, and users gain access to the sites often in exchange fortheir data (e.g., photos, personal information, creative musings,etc.). This paper imagines a very different Web ecosystem, in whichusers retain control of their data and developers can justify theirexistence without hoarding user data

Between Worlds: Securing Mixed JavaScript/ActionScript Multi-Party Web Content

Mixed Flash and JavaScript content has become increasingly prevalent; its purveyance of dynamic features unique to each platform has popularized it for myriad Web development projects. Although Flash and JavaScript security has been examined extensively, the security of untrusted content that combines both has received considerably less attention. This article considers this fusion in detail, outlining several practical scenarios that threaten the security of Web applications. The severity of these attacks warrants the development of new techniques that address the security of Flash-JavaScript content considered as a whole, in contrast to prior solutions that have examined Flash or JavaScript security individually. Toward this end, the article presents FlashJaX, a cross-platform solution that enforces fine-grained, history-based policies that span both Flash and JavaScript. Using in-lined reference monitoring, FlashJaX safely embeds untrusted JavaScript and Flash content in Web pages without modifying browser clients or using special plug-ins. The architecture of FlashJaX, its design and implementation, and a detailed security analysis are exposited. Experiments with advertisements from popular ad networks demonstrate that FlashJaX is transparent to policy-compliant advertisement content, yet blocks many common attack vectors that exploit the fusion of these Web platforms

Analysis of attacks on Web based applications

As the technology used to power Web-based applications continues to evolve, new security threats are emerging. Web 2.0 technology provides attackers with a whole new array of vulnerabilities to exploit. In this thesis, we present an analysis of the attacker activity aimed at a typical Web server based on the data collected on two high interaction honeypots over a one month period of time. The configuration of the honeypots resembles the typical three tier architecture of many real world Web servers. Our honeypots ran on the Windows XP operating system and featured attractive attack targets such as the Microsoft IIS Web server, MySQL database, and two Web 2.0-based applications (Wordpress and MediaWiki). This configuration allows for attacks on a component directly or through the other components. Our analysis includes detailed inspection of the network traffic and IIS logs as well as investigation of the System logs, where appropriate. We also develop a pattern recognition approach to classify TCP connections as port scans or vulnerability scans/attacks. Some of the conclusions of our analysis include: (1) the vast majority of malicious traffic was over the TCP protocol, (2) the majority of malicious traffic was targeted at Windows file sharing, HTTP, and SSH ports, (3) most attackers found our Web server through search-based strategies rather than IP-based strategies, (4) most of the malicious traffic was generated by a few unique attackers

MSc Dissertation:An investigation of JavaScript isolation mechanisms: Sandboxing implementations

Web developers have been relying more and more on the features of JavaScript for deploying a range of applications, from online banking and email services to digital media delivery and gaming, rendering it the assembly language of the Internet. Since it allows external scripts from untrusted third-parties to access the application's content, it has become an attractive target for cyber attackers. This untested and untrusted by the application's true author code cannot only damage the content of the application it runs within, but also obtain access and modify other applications running on the same browser, or even the host system.In this paper, we compare implementations that operate as Sandboxes in order to isolate JavaScript from untrusted third-parties, so that they have limited privileges over the application. We use specific metrics to compare them, and afterwards we evaluate those results after testing them on an x64 machine

Archibald Reiss Days : Thematic conference proceedings of international significance : International Scientific Conference, Belgrade, 7-9 November 2017

In front of you is the Thematic Collection of Papers presented at the International Scientific Conference “Archibald Reiss Days”, which was organized by the Academy of Criminalistic and Police Studies in Belgrade, in cooperation with the Ministry of Interior and the Ministry of Education, Science and Technological Development of the Republic of Serbia, School of Criminal Justice, Michigan State University in USA, School of Criminal Justice University of Laussane in Switzerland, National Police Academy in Spain, Police Academy Szczytno in Poland, National Police University of China, Lviv State University of Internal Affairs, Volgograd Academy of the Russian Internal Affairs Ministry, Faculty of Security in Skopje, Faculty of Criminal Justice and Security in Ljubljana, Police Academy “Alexandru Ioan Cuza“ in Bucharest, Academy of Police Force in Bratislava, Faculty of Security Science University of Banja Luka, Faculty for Criminal Justice, Criminology and Security Studies University of Sarajevo, Faculty of Law in Montenegro, Police Academy in Montenegro and held at the Academy of Criminalistic and Police Studies, on 7, 8 and 9 November 2017.The International Scientific Conference “Archibald Reiss Days” is organized for the seventh time in a row, in memory of the founder and director of the first modern higher police school in Serbia, Rodolphe Archibald Reiss, after whom the Conference was named. The Thematic Collection of Papers contains 131 papers written by eminent scholars in the field of law, security, criminalistics, police studies, forensics, informatics, as well as by members of national security system participating in education of the police, army and other security services from Belarus, Bosnia and Herzegovina, Bulgaria, Bangladesh, Abu Dhabi, Greece, Hungary, Macedonia, Romania, Russian Federation, Serbia, Slovakia, Slovenia, Czech Republic, Switzerland, Turkey, Ukraine, Italy, Australia and United Kingdom. Each paper has been double-blind peer reviewed by two reviewers, international experts competent for the field to which the paper is related, and the Thematic Conference Proceedings in whole has been reviewed by five competent international reviewers.The papers published in the Thematic Collection of Papers provide us with the analysis of the criminalistic and criminal justice aspects in solving and proving of criminal offences, police organization, contemporary security studies, social, economic and political flows of crime, forensic linguistics, cybercrime, and forensic engineering. The Collection of Papers represents a significant contribution to the existing fund of scientific and expert knowledge in the field of criminalistic, security, penal and legal theory and practice. Publication of this Collection contributes to improving of mutual cooperation between educational, scientific and expert institutions at national, regional and international level

End-to-end Web application security

Web applications are important, ubiquitous distributed systems whose current security relies primarily on server-side mechanisms. This paper makes the end-toend argument that the client and server must collaborate to achieve security goals, to eliminate common security exploits, and to secure the emerging class of rich, crossdomain Web applications referred to as Web 2.0. In order to support end-to-end security, Web clients must be enhanced. We introduce Mutation-Event Transforms: an easy-to-use client-side mechanism that can enforce even fine-grained, application-specific security policies, and whose implementation requires only straightforward changes to existing Web browsers. We give numerous examples of attractive, new security policies that demonstrate the advantages of end-to-end Web application security and of our proposed mechanism.