界: Security Features
軟體安全性並非安全性軟體。我們關注驗證、Access Control、保密性、加密以及權限管理之類的主題。
Access Control
Abstract
在沒有檢查使用者權限的情況下執行 SOQL 陳述式可讓攻擊者修改未經授權的項目。
Explanation
當攻擊者存取僅限授權使用者存取的資源時,會出現存取控制弱點。
依預設,使用 SObjects 和 SObject 欄位時,Visualforce 應用程式會自動強制物件層級安全性 (CRUD) 和欄位層級安全性 (FLS)。但是,如果物件和欄位做為一般資料類型供參照時,則不會強制這些機制,並且必須以程式設計方式實作存取控制檢查。
範例 1:在以下程式碼範例中,使用自訂 setter 方法更新欄位,因此需要授權檢查。
依預設,使用 SObjects 和 SObject 欄位時,Visualforce 應用程式會自動強制物件層級安全性 (CRUD) 和欄位層級安全性 (FLS)。但是,如果物件和欄位做為一般資料類型供參照時,則不會強制這些機制,並且必須以程式設計方式實作存取控制檢查。
範例 1:在以下程式碼範例中,使用自訂 setter 方法更新欄位,因此需要授權檢查。
<apex:page controller="accessControl">
<apex:pageBlock >
<apex:pageBlockSection >
<apex:outputText value="Survey Name: "/>
<apex:inputText value="{!surveyName}"/>
</apex:pageBlockSection>
<apex:pageBlockSection >
<apex:outputText value="New Name: "/>
<apex:inputText value="{!newSurveyName}"/>
</apex:pageBlockSection>
<apex:pageBlockSection >
<apex:commandButton value="Update" action="{!updateName}"/>
</apex:pageBlockSection>
</apex:pageBlock>
</apex:page>
public String surveyName { get; set; }
public String newSurveyName { get; set; }
public PageReference updateName() {
Survey__c s = [SELECT Name FROM Survey__c WHERE Name=:surveyName];
s.Name = newSurveyName;
update s;
PageReference page = ApexPages.currentPage();
page.setRedirect(true);
return page;
}
References
[1] Salesforce Developers Technical Library Secure Coding Guidelines - Authorization and Access Control
[2] Salesforce Developers Technical Library Testing CRUD and FLS Enforcement
[3] Salesforce Developers Technical Library Enforcing CRUD and FLS
[4] Salesforce Developers Technical Library Visualforce Developers Guide - Standard Controllers
[5] Standards Mapping - Common Weakness Enumeration CWE ID 566
[6] Standards Mapping - Common Weakness Enumeration Top 25 2023 [24] CWE ID 863
[7] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000213, CCI-000345, CCI-001084, CCI-002165
[8] Standards Mapping - FIPS200 AC
[9] Standards Mapping - General Data Protection Regulation (GDPR) Access Violation
[10] Standards Mapping - NIST Special Publication 800-53 Revision 4 AC-3 Access Enforcement (P1), AU-9 Protection of Audit Information (P1), CM-5 Access Restrictions for Change (P1), SC-3 Security Function Isolation (P1), SC-24 Fail in Known State (P1)
[11] Standards Mapping - NIST Special Publication 800-53 Revision 5 AC-3 Access Enforcement, AU-9 Protection of Audit Information, CM-5 Access Restrictions for Change, SC-3 Security Function Isolation, SC-24 Fail in Known State
[12] Standards Mapping - OWASP Application Security Verification Standard 4.0 1.2.2 Authentication Architectural Requirements (L2 L3), 1.2.3 Authentication Architectural Requirements (L2 L3), 1.2.4 Authentication Architectural Requirements (L2 L3), 1.4.2 Access Control Architectural Requirements (L2 L3), 1.4.4 Access Control Architectural Requirements (L2 L3), 2.7.1 Out of Band Verifier Requirements (L1 L2 L3), 2.7.2 Out of Band Verifier Requirements (L1 L2 L3), 2.7.3 Out of Band Verifier Requirements (L1 L2 L3), 2.8.4 Single or Multi Factor One Time Verifier Requirements (L2 L3), 2.8.5 Single or Multi Factor One Time Verifier Requirements (L2 L3), 3.7.1 Defenses Against Session Management Exploits (L1 L2 L3), 4.1.2 General Access Control Design (L1 L2 L3), 4.1.3 General Access Control Design (L1 L2 L3), 4.1.5 General Access Control Design (L1 L2 L3), 4.2.1 Operation Level Access Control (L1 L2 L3), 8.3.4 Sensitive Private Data (L1 L2 L3), 9.2.3 Server Communications Security Requirements (L2 L3), 10.2.1 Malicious Code Search (L2 L3), 13.1.4 Generic Web Service Security Verification Requirements (L2 L3), 14.5.1 Validate HTTP Request Header Requirements (L1 L2 L3), 14.5.4 Validate HTTP Request Header Requirements (L1 L2 L3)
[13] Standards Mapping - OWASP Mobile 2014 M5 Poor Authorization and Authentication
[14] Standards Mapping - OWASP Mobile 2024 M3 Insecure Authentication/Authorization
[15] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-AUTH-1
[16] Standards Mapping - OWASP Top 10 2004 A2 Broken Access Control
[17] Standards Mapping - OWASP Top 10 2007 A4 Insecure Direct Object Reference
[18] Standards Mapping - OWASP Top 10 2010 A4 Insecure Direct Object References
[19] Standards Mapping - OWASP Top 10 2013 A4 Insecure Direct Object References
[20] Standards Mapping - OWASP Top 10 2017 A5 Broken Access Control
[21] Standards Mapping - OWASP Top 10 2021 A01 Broken Access Control
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.2
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.5.4
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.8
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.8
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.8
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.8
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.8
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[30] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 5.4 - Authentication and Access Control
[31] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 5.4 - Authentication and Access Control
[32] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 5.4 - Authentication and Access Control, Control Objective C.2.3 - Web Software Access Controls
[33] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 863
[34] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3480.1 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3480.1 CAT I
[36] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3480.1 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3480.1 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3480.1 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3480.1 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3480.1 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001280 CAT II, APSC-DV-001290 CAT II, APSC-DV-001300 CAT II, APSC-DV-001310 CAT II, APSC-DV-001320 CAT II, APSC-DV-001330 CAT II, APSC-DV-001410 CAT II, APSC-DV-002310 CAT I, APSC-DV-002360 CAT II, APSC-DV-002960 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-001280 CAT II, APSC-DV-001290 CAT II, APSC-DV-001300 CAT II, APSC-DV-001310 CAT II, APSC-DV-001320 CAT II, APSC-DV-001330 CAT II, APSC-DV-001410 CAT II, APSC-DV-002310 CAT I, APSC-DV-002360 CAT II, APSC-DV-002960 CAT II
[56] Standards Mapping - Web Application Security Consortium Version 2.00 Insufficient Authorization (WASC-02)
[57] Standards Mapping - Web Application Security Consortium 24 + 2 Insufficient Authorization
desc.structural.apex.access_control_update