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    WebSphere Service Provider Misconfiguration: Unsigned Outbound Timestamp

    ABSTRACT

    未經簽名的時間戳會導致 SOAP 消息遭受 tampering 及 replay 攻擊。

    EXPLANATION

    安全性時間戳可表明消息的“新鮮性”。如果攻擊者截取了一則消息,稍后將其轉發,則接收者能夠拒絕此 replay 攻擊,因為時間戳會指明該消息已過期。時間戳可包含有效期屬性,通過該屬性,可對安全語義的有效期設置一個硬限制。

    為避免攻擊者篡改時間戳,應對時間戳執行簽名。如果 SOAP 消息的時間戳未經簽名,則攻擊者可在接收者不知情的情況下截取該消息、修改時間戳,以及轉發該消息。在這種情況下,攻擊者可能會欺騙接收者接受惡意消息。

    下列服務提供程序配置可讓 WebSphere 發送未經簽名的時間戳:


    <com.ibm.etools.webservice.wsext:WsExtension xmi:version="2.0" xmlns:xmi="http://www.omg.org/XMI" xmlns:com.ibm.etools.webservice.wsext="http://www.ibm.com/websphere/appserver/schemas/5.0.2/wsext.xmi" </pre>
    ...
    <securityResponseGeneratorServiceConfig xmi:id="SecurityResponseGeneratorServiceConfig_1211568020342">
    <addTimestamp xmi:id="AddTimestamp_1211568020342"/>
    ...
    </com.ibm.etools.webservice.wsext:WsExtension>

    REFERENCES

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

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

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

    [4] Standards Mapping - Common Weakness Enumeration - (CWE) CWE ID 345

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

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

    [7] Web Services Handbook for WebSphere Application Server 6.1 IBM Redbooks

    [8] Web Services Security:SOAP Message Security 1.1 OASIS


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

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