界: Security Features
软件安全不是安全软件。此处我们关注的主题包括身份验证、Access Control、机密性、加密和权限管理。
Access Control: Unenforced Sharing Rules
Abstract
Apex 类包含可以在不强制执行用户共享规则的情况下执行的数据库操作。
Explanation
Salesforce 应用程序使用共享规则来控制用户权限和对数据库记录的访问权限。然而,用户共享规则并不总是在 Apex 中执行,因为 Apex 类可以使用不同的共享关键字来声明,这些共享关键字可更改规则的执行方式。类可以使用以下三个不同的共享关键字之一进行声明:
-
-
-
当未声明任何共享关键字时,如果存在调用类,则该类将继承调用类的共享模式。否则,将不会强制执行共享规则。
示例 1:以下三个 Apex 类用于数据库查询调用的共享关键字均不安全。
-
with sharing
:将强制执行用户共享规则。-
without sharing
:将不会强制执行共享规则。-
inherited sharing
:将强制执行调用类的共享规则。当调用类未指定共享关键字时,或者当类本身是入口点(例如 Visualforce 控制器)时,将默认强制执行用户共享规则。当未声明任何共享关键字时,如果存在调用类,则该类将继承调用类的共享模式。否则,将不会强制执行共享规则。
示例 1:以下三个 Apex 类用于数据库查询调用的共享关键字均不安全。
public class TestClass1 {
public List<Contact> getAllTheSecrets() {
return Database.query('SELECT Name FROM Contact');
}
}
public without sharing class TestClass2 {
public List<Contact> getAllTheSecrets() {
return Database.query('SELECT Name FROM Contact');
}
}
public inherited sharing class TestClass3 {
public List<Contact> getAllTheSecrets() {
return Database.query('SELECT Name FROM Contact');
}
}
TestClass1
和 TestClass2
均不安全,因为它们可以在不执行用户共享规则的情况下检索记录。TestClass3
更安全,因为它默认执行共享规则。但是,如果在显式声明使用 without sharing
的类中调用函数 getAllTheSecrets()
,则仍然可以授予未经授权的访问权限。References
[1] Using the with sharing, without sharing, and inherited sharing Keywords Salesforce
[2] Sharing Rules Considerations Salesforce
[3] Standards Mapping - CIS Azure Kubernetes Service Benchmark 3.0
[4] Standards Mapping - CIS Amazon Elastic Kubernetes Service Benchmark 1.0
[5] Standards Mapping - CIS Amazon Web Services Foundations Benchmark 1
[6] Standards Mapping - CIS Google Kubernetes Engine Benchmark confidentiality
[7] Standards Mapping - CIS Kubernetes Benchmark complete
[8] Standards Mapping - Common Weakness Enumeration CWE ID 566
[9] Standards Mapping - Common Weakness Enumeration Top 25 2023 [24] CWE ID 863
[10] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000213, CCI-001084, CCI-002165
[11] Standards Mapping - FIPS200 AC
[12] Standards Mapping - General Data Protection Regulation (GDPR) Access Violation
[13] Standards Mapping - NIST Special Publication 800-53 Revision 4 AC-3 Access Enforcement (P1), SC-3 Security Function Isolation (P1)
[14] Standards Mapping - NIST Special Publication 800-53 Revision 5 AC-3 Access Enforcement, SC-3 Security Function Isolation
[15] Standards Mapping - OWASP Top 10 2004 A2 Broken Access Control
[16] Standards Mapping - OWASP Top 10 2007 A4 Insecure Direct Object Reference
[17] Standards Mapping - OWASP Top 10 2010 A4 Insecure Direct Object References
[18] Standards Mapping - OWASP Top 10 2013 A4 Insecure Direct Object References
[19] Standards Mapping - OWASP Top 10 2017 A5 Broken Access Control
[20] Standards Mapping - OWASP Top 10 2021 A01 Broken Access Control
[21] Standards Mapping - OWASP Application Security Verification Standard 4.0 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), 13.4.2 GraphQL and other Web Service Data Layer Security Requirements (L2 L3)
[22] Standards Mapping - OWASP Mobile 2014 M5 Poor Authorization and Authentication
[23] Standards Mapping - OWASP Mobile 2024 M3 Insecure Authentication/Authorization
[24] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-AUTH-1
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.2
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.5.4
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.8
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.8
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.8
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.8
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.8
[32] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[33] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 5.4 - Authentication and Access Control
[34] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 5.4 - Authentication and Access Control
[35] 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
[36] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 863
[37] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3480.1 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3480.1 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3480.1 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3480.1 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3480.1 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3480.1 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3480.1 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[54] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[55] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[56] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[57] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000460 CAT I, APSC-DV-000470 CAT II, APSC-DV-002360 CAT II
[58] Standards Mapping - Web Application Security Consortium Version 2.00 Insufficient Authorization (WASC-02)
[59] Standards Mapping - Web Application Security Consortium 24 + 2 Insufficient Authorization
desc.structural.apex.access_control_unenforced_sharing_rules