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                    Command Injection

                    ABSTRACT

                    執行不可信賴資源中的命令,或在不可信賴的環境中執行命令,都會導致程序以攻擊者的名義執行惡意命令。

                    EXPLANATION

                    Command Injection 漏洞主要表現為以下兩種形式:

                    - 攻擊者能夠篡改程序執行的命令:攻擊者直接控制了所執行的命令。

                    - 攻擊者能夠篡改命令的執行環境:攻擊者間接地控制了所執行的命令。

                    在這種情況下,我們著重關注第一種情況,即攻擊者控制所執行命令的可能性。這種形式的 Command Injection 漏洞在以下情況下發生:

                    1. 數據從不可信賴的數據源進入應用程序。

                    2. 數據被用作代表應用程序所執行命令的字符串,或字符串的一部分。

                    3. 通過命令的執行,應用程序會授予攻擊者一種原本不該擁有的特權或能力。

                    例 1:攻擊者可以利用下列代碼通過 cmd 請求參數指定任意指令。


                    ...
                    <cfset var="#url.cmd#">
                    <cfexecute name = "C:\windows\System32\cmd.exe"
                    arguments = "/c #var#"
                    timeout = "1"
                    variable="mycmd">
                    </cfexecute>
                    ...

                    REFERENCES

                    [1] Standards Mapping - OWASP Top 10 2010 - (OWASP 2010) A1 Injection

                    [2] Standards Mapping - OWASP Top 10 2007 - (OWASP 2007) A2 Injection Flaws

                    [3] Standards Mapping - OWASP Top 10 2004 - (OWASP 2004) A6 Injection Flaws

                    [4] Standards Mapping - Security Technical Implementation Guide Version 3 - (STIG 3) APP3510 CAT I, APP3570 CAT I

                    [5] Standards Mapping - Security Technical Implementation Guide Version 3.4 - (STIG 3.4) APP3510 CAT I, APP3570 CAT I

                    [6] Standards Mapping - Common Weakness Enumeration - (CWE) CWE ID 77, CWE ID 78

                    [7] Standards Mapping - SANS Top 25 2010 - (SANS 2010) Insecure Interaction - CWE ID 078

                    [8] Standards Mapping - SANS Top 25 2011 - (SANS Top 25 2011) Insecure Interaction - CWE ID 078

                    [9] Standards Mapping - SANS Top 25 2009 - (SANS 2009) Insecure Interaction - CWE ID 116

                    [10] Standards Mapping - Web Application Security Consortium 24 + 2 - (WASC 24 + 2) OS Commanding

                    [11] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 - (PCI 1.2) Requirement 6.3.1.1, Requirement 6.5.2

                    [12] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 - (PCI 2.0) Requirement 6.5.1

                    [13] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 - (PCI 1.1) Requirement 6.5.6


                    Copyright 2013 Fortify Software - All rights reserved.
                    (Generated from version 2013.1.1.0008 of the Fortify Secure Coding Rulepacks)
                    desc.dataflow.cfml.command_injection

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