界: Environment

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J2EE Misconfiguration: Invalid Servlet Name

Java/JSP

Abstract

サーブレット名が無効な場合、目的のサーブレットへの正当なアクセスが妨げられる可能性があります。

Explanation

サーブレット名が欠落または重複していると、web.xml はエラーになります。すべてのサーブレットには一意の名前 (servlet-name) と対応するマッピング (servlet-mapping) が必要です。

例 1:web.xml の次のエントリは、サーブレット定義のいくつかのエラーを示しています。


<!-- No <servlet-name> specified: -->
    <servlet>
        <servlet-class>com.class.MyServlet</servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>

<!-- Empty <servlet-name> node: -->
    <servlet>
        <servlet-name/>
        <servlet-class>com.class.MyServlet</servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>

<!-- Duplicate <servlet-name> nodes: -->
    <servlet>
        <servlet-name>MyServlet</servlet-name>
        <servlet-name>Servlet</servlet-name>
        <servlet-class>com.class.MyServlet</servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>

これらのエラーにより、サーブレットに対する意図しないアクセス拒否が発生する可能性があります。

References

[1] Sun Microsystems, Inc. Java Servlet Specification 2.4

[2] Standards Mapping - Common Weakness Enumeration CWE ID 684

[3] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001094

[4] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-5 Denial of Service Protection (P1)

[5] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-5 Denial of Service Protection

[6] Standards Mapping - OWASP API 2023 API8 Security Misconfiguration

[7] Standards Mapping - OWASP Mobile 2014 M1 Weak Server Side Controls

[8] Standards Mapping - OWASP Top 10 2004 A9 Application Denial of Service

[9] Standards Mapping - OWASP Top 10 2013 A5 Security Misconfiguration

[10] Standards Mapping - OWASP Top 10 2017 A6 Security Misconfiguration

[11] Standards Mapping - OWASP Top 10 2021 A05 Security Misconfiguration

[12] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.9

[13] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP6080 CAT II

[14] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP6080 CAT II

[15] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP6080 CAT II

[16] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP6080 CAT II

[17] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP6080 CAT II

[18] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP6080 CAT II

[19] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP6080 CAT II

[20] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002400 CAT II

[21] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002400 CAT II

[22] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002400 CAT II

[23] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002400 CAT II

[24] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002400 CAT II

[25] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002400 CAT II

[26] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002400 CAT II

[27] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002400 CAT II

[28] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002400 CAT II

[29] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002400 CAT II

[30] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002400 CAT II

[31] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002400 CAT II

[32] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002400 CAT II

[33] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002400 CAT II

[34] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002400 CAT II

[35] Standards Mapping - Security Technical Implementation Guide Version 6.2 APSC-DV-002400 CAT II

[36] Standards Mapping - Web Application Security Consortium Version 2.00 Denial of Service (WASC-10)

[37] Standards Mapping - Web Application Security Consortium 24 + 2 Denial of Service

desc.config.java.j2ee_misconfiguration_invalid_servlet_name