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                    ASP.NET Misconfiguration: Role Protection Disabled

                    ABSTRACT

                    cookie 中未受保護的角色信息可能會被攻擊者偷窺或篡改。

                    EXPLANATION

                    如果 web.config 文件中 configuration/system.web/authentication/forms 元素的 cacheRolesInCookie 屬性被設置為 true,那么每一位用戶的角色信息都將被緩存在 cookie 中。如果此信息是以明文形式存儲的,那么任何一個用戶只要能夠訪問與應用程序交互的指定計算機,就都能訪問存儲在 cookie 中的信息。更糟糕的是,如果攻擊者能夠隨意地修改 cookie 中存儲的數據,他們就能夠篡改提供給應用程序的信息,有可能改變系統的運行方式以對他們有利。

                    在許多情況下,應用程序可以根據其應用環境自動驗證來自 cookie 的輸入,但是 ASP.NET 的驗證框架提供了一種極好的方式來驗證 cookie 未被意外修改。如果不使用這種方法,想要建立一個所有輸入都經過驗證的高級別信任度是一件非常困難、甚至不可能的事情。

                    REFERENCES

                    [1] .NET Framework General Reference:CookieProtectionValue Property Microsoft Corporation

                    [2] Standards Mapping - OWASP Top 10 2004 - (OWASP 2004) A10 Insecure Configuration Management

                    [3] Standards Mapping - OWASP Top 10 2007 - (OWASP 2007) A9 Insecure Communications

                    [4] Standards Mapping - OWASP Top 10 2010 - (OWASP 2010) A9 Insufficient Transport Layer Protection

                    [5] Standards Mapping - Security Technical Implementation Guide Version 3 - (STIG 3) APP3210.1 CAT II

                    [6] Standards Mapping - Security Technical Implementation Guide Version 3.4 - (STIG 3.4) APP3210.1 CAT II

                    [7] Standards Mapping - FIPS200 - (FISMA) CM, SC

                    [8] Standards Mapping - Common Weakness Enumeration - (CWE) CWE ID 302

                    [9] Standards Mapping - Web Application Security Consortium 24 + 2 - (WASC 24 + 2) Insufficient Authentication

                    [10] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 - (PCI 1.2) Requirement 4.1, Requirement 6.3.1.4, Requirement 6.5.9

                    [11] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 - (PCI 1.1) Requirement 4.1, Requirement 6.5.10

                    [12] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 - (PCI 2.0) Requirement 4.1, Requirement 6.5.4


                    Copyright 2013 Fortify Software - All rights reserved.
                    (Generated from version 2013.1.1.0008 of the Fortify Secure Coding Rulepacks)
                    desc.config.dotnet.asp_dotnet_misconfiguration_role_protection_disabled

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