界: Input Validation and Representation
輸入驗證和表示法問題是由中繼字元、替代編碼和數值表示法引起的。信任輸入會導致安全問題。問題包括：「Buffer Overflows」、「Cross-Site Scripting」攻擊、「SQL Injection」及其他許多問題。
Struts: Form Field Without Validator
Abstract
表單中的每個欄位應該在相對應的驗證表單進行驗證。
Explanation
只要疏忽了一個輸入欄位的驗證，就會留下攻擊者能利用的破綻。
未經檢查的輸入是導致目前最糟糕、最常見的軟體安全問題的根源。Cross-site scripting、SQL injection 和 process control 的弱點是由於缺少輸入驗證或輸入驗證不完整而造成的。雖然 J2EE 應用程式在通常情況下不容易因記憶體損壞攻擊而受到影響，但是如果 J2EE 應用程式連接到未執行陣列界限檢查的本地程式碼，攻擊者就能夠在 J2EE 應用程式中利用輸入驗證錯誤發起 Buffer overflow 攻擊。
某些應用程式使用相同的
未經檢查的輸入是導致目前最糟糕、最常見的軟體安全問題的根源。Cross-site scripting、SQL injection 和 process control 的弱點是由於缺少輸入驗證或輸入驗證不完整而造成的。雖然 J2EE 應用程式在通常情況下不容易因記憶體損壞攻擊而受到影響，但是如果 J2EE 應用程式連接到未執行陣列界限檢查的本地程式碼，攻擊者就能夠在 J2EE 應用程式中利用輸入驗證錯誤發起 Buffer overflow 攻擊。
某些應用程式使用相同的
ActionForm 來實行多個用途。在這種情況下，某些欄位在某些操作對應中可能會沒有使用。對沒有使用的欄位也進行驗證是很重要的。最好是對沒有使用的欄位進行嚴格控制，讓它們只能處於空白或未定義的狀態。如果沒有使用的欄位沒有經過驗證，操作中的共用商業邏輯可能會允許攻擊者略過針對表單其他應用所進行的驗證檢查。References
[1] T. Husted et al. Struts in Action: Building Web Applications with the Leading Java Framework Manning Publications
[2] The Struts project The Apache Foundation
[3] Standards Mapping - Common Weakness Enumeration CWE ID 105
[4] Standards Mapping - Common Weakness Enumeration Top 25 2019 [3] CWE ID 020
[5] Standards Mapping - Common Weakness Enumeration Top 25 2020 [3] CWE ID 020
[6] Standards Mapping - Common Weakness Enumeration Top 25 2021 [4] CWE ID 020
[7] Standards Mapping - Common Weakness Enumeration Top 25 2022 [4] CWE ID 020
[8] Standards Mapping - Common Weakness Enumeration Top 25 2023 [6] CWE ID 020
[9] Standards Mapping - Common Weakness Enumeration Top 25 2024 [12] CWE ID 020
[10] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002754
[11] Standards Mapping - FIPS200 SI
[12] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[13] Standards Mapping - NIST Special Publication 800-53 Revision 4 SI-10 Information Input Validation (P1)
[14] Standards Mapping - NIST Special Publication 800-53 Revision 5 SI-10 Information Input Validation
[15] Standards Mapping - OWASP Application Security Verification Standard 4.0 5.1.3 Input Validation Requirements (L1 L2 L3), 5.1.4 Input Validation Requirements (L1 L2 L3)
[16] Standards Mapping - OWASP Mobile 2014 M1 Weak Server Side Controls
[17] Standards Mapping - OWASP Top 10 2004 A1 Unvalidated Input
[18] Standards Mapping - OWASP Top 10 2010 A6 Security Misconfiguration
[19] Standards Mapping - OWASP Top 10 2013 A5 Security Misconfiguration
[20] Standards Mapping - OWASP Top 10 2017 A6 Security Misconfiguration
[21] Standards Mapping - OWASP Top 10 2021 A05 Security Misconfiguration
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.1
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.1
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.1
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.1
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.1
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4
[30] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 4.2 - Critical Asset Protection
[31] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 4.2 - Critical Asset Protection, Control Objective B.3.1 - Terminal Software Attack Mitigation, Control Objective B.3.1.1 - Terminal Software Attack Mitigation
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 4.2 - Critical Asset Protection, Control Objective B.3.1 - Terminal Software Attack Mitigation, Control Objective B.3.1.1 - Terminal Software Attack Mitigation, Control Objective C.3.2 - Web Software Attack Mitigation
[33] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I
[34] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I
[35] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I
[36] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002560 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002560 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002560 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002560 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002560 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002560 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002560 CAT I
[47] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002560 CAT I
[48] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002560 CAT I
[49] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002560 CAT I
[50] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002560 CAT I
[51] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002560 CAT I
[52] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002560 CAT I
[53] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[54] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002530 CAT II, APSC-DV-002560 CAT I
[55] Standards Mapping - Web Application Security Consortium Version 2.00 Application Misconfiguration (WASC-15)
desc.config.java.struts_form_field_without_validator