Accession Number : ADA614474
Title : The Emperor's New Password Manager: Security Analysis of Web-based Password Managers
Descriptive Note : Technical rept.
Corporate Author : CALIFORNIA UNIV BERKELEY DEPT OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCES
Personal Author(s) : Li, Zhiwei ; He, Warren ; Akhawa, Devdatta ; Song, Dawn
Report Date : 07 Jul 2014
Pagination or Media Count : 21
Abstract : We conduct a security analysis of five popular web-based password managers. Unlike local password managers, web-based password managers run in the browser. We identify four key security concerns for web-based password managers and, for each, identify representative vulnerabilities through our case studies. Our attacks are severe: in four out of the five password managers we studied, an attacker can learn a user s credentials for arbitrary websites. We find vulnerabilities in diverse features like one-time passwords, bookmarklets, and shared passwords. The root-causes of the vulnerabilities are also diverse: ranging from logic and authorization mistakes to misunderstandings about the web security model, in addition to the typical vulnerabilities like CSRF and XSS. Our study suggests that it remains to be a challenge for the password managers to be secure; password managers, in their current form, may not provide sufficient security for user secrets. To guide future development of password managers, we provide guidance for password managers. Given the diversity of vulnerabilities we identified, we advocate a defense-in-depth approach to ensure security of password managers.
Descriptors : *COMPUTER NETWORK SECURITY , CASE STUDIES , INTERNET , MAN COMPUTER INTERFACE , MODELS , SECURITY , SHARING , SYSTEMS ANALYSIS , VULNERABILITY
Subject Categories : Computer Systems Management and Standards
Distribution Statement : APPROVED FOR PUBLIC RELEASE