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            Cookie Security: Overly Broad Session Cookie Domain

            ABSTRACT

            通過共享相同的基本域的應用程序可訪問域范圍過大的會話 cookie。

            EXPLANATION

            開發者通常將會話 cookie 設置為類似“.example.com”的基本域。然而,這會使會話 cookie 暴露在基本域名和任何子域中的所有 Web 應用程序下。泄露會話 cookie 可導致危及帳戶安全。

            例:
            假設您有一個安全應用程序并將其部署在 http://secure.example.com/ 上,當用戶登錄時,該應用程序將使用域“.example.com”設置會話 ID cookie。

            應用程序的配置文件中的條目如下:


            session.cookie_domain=.example.com


            假設您在 http://insecure.example.com/ 上有另一個不太安全的應用程序,它包含 cross-site scripting 漏洞。任何瀏覽到 http://insecure.example.comhttp://secure.example.com 認證用戶面臨著暴露來自 http://secure.example.com 的會話 cookie 的風險。

            REFERENCES

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

            [2] Standards Mapping - OWASP Top 10 2007 - (OWASP 2007) A6 Information Leakage and Improper Error Handling

            [3] Standards Mapping - OWASP Top 10 2010 - (OWASP 2010) A6 Security Misconfiguration

            [4] Standards Mapping - FIPS200 - (FISMA) CM

            [5] Standards Mapping - Web Application Security Consortium 24 + 2 - (WASC 24 + 2) Information Leakage

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

            [7] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 - (PCI 1.2) Requirement 6.5.7

            [8] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 - (PCI 2.0) Requirement 6.5.8

            [9] Runtime Configuration The PHP Group


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

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