界: Input Validation and Representation
输入验证与表示问题是由元字符、交替编码和数字表示引起的。安全问题源于信任输入。这些问题包括:“Buffer Overflows”、“Cross-Site Scripting”攻击、“SQL Injection”等其他问题。
SOSL Injection
Abstract
使用来自不可信来源的数据执行 SOSL 查询可能会允许访问未经授权的数据。
Explanation
Salesforce 对象搜索语言 (SOSL) 是 Salesforce 平台搜索语言,用于在记录中执行文本搜索。使用 SOSL 可跨 Salesforce 中的多个标准和自定义对象记录搜索字段。
Salesforce 对象搜索语言 (SOSL) injection 错误在以下情况下出现:
1. 数据从一个不可信赖的数据源进入程序。
2. 在未进行任何预处理或清除的情况下,数据用于动态构造 SOSL 查询。
示例 1:以下代码动态地构造并执行了一个 SOSL 查询,该查询搜索具有指定名称的联系人。
此代码可按以下方式执行查询:
但是,由于这个查询是动态构造的,由一个不变的基查询字符串和一个用户输入字符串连接而成,因此只有在
附加条件
与大多数数据库接口不同,在 force.com 平台中,SOSL 不支持以分号分隔的多个 SOSL 语句,这意味着,无法像常规 SQL injection 攻击那样在一个查询中连接多个命令。另请注意,Apex 数据库不支持注释,因此每个单引号、括号或其他特殊字符都必须成对使用。
Salesforce 对象搜索语言 (SOSL) injection 错误在以下情况下出现:
1. 数据从一个不可信赖的数据源进入程序。
2. 在未进行任何预处理或清除的情况下,数据用于动态构造 SOSL 查询。
示例 1:以下代码动态地构造并执行了一个 SOSL 查询,该查询搜索具有指定名称的联系人。
...
public String inputValue {
get { return inputValue; }
set { inputValue = value; }
}
...
String queryString = 'Name LIKE \'%' + inputValue + '%\'';
String searchString = 'Acme';
String searchQuery = 'FIND :searchString IN ALL FIELDS RETURNING Contact (Id WHERE ' + queryString + ')';
List<List<SObject>> results = Search.query(searchQuery);
...
此代码可按以下方式执行查询:
String searchQuery = 'FIND :searchString IN ALL FIELDS RETURNING Contact (Id WHERE Name LIKE '%' + inputValue + '%')';
但是,由于这个查询是动态构造的,由一个不变的基查询字符串和一个用户输入字符串连接而成,因此只有在
inputValue
不包含单引号字符时,才会正确执行这一查询。如果攻击者为 inputValue
输入字符串 1%' OR Name LIKE '
,则该查询会变成:
String searchQuery = 'FIND :searchString IN ALL FIELDS RETURNING Contact (Id WHERE Name LIKE '%1%' OR Name LIKE '%%')';
附加条件
OR Name like '%%'
会使 where 子句使用 LIKE '%%'
条件,这将强制该查询输出所有包含“map”短语的记录,因为它在逻辑上将等同于一个更为简化的查询:
FIND 'map*' IN ALL FIELDS RETURNING Contact (Id WHERE Name LIKE '%%')
与大多数数据库接口不同,在 force.com 平台中,SOSL 不支持以分号分隔的多个 SOSL 语句,这意味着,无法像常规 SQL injection 攻击那样在一个查询中连接多个命令。另请注意,Apex 数据库不支持注释,因此每个单引号、括号或其他特殊字符都必须成对使用。
References
[1] Salesforce Developers Technical Library Secure Coding SQL Injection
[2] S. J. Friedl SQL Injection Attacks by Example
[3] P. Litwin Stop SQL Injection Attacks Before They Stop You MSDN Magazine
[4] P. Finnigan SQL Injection and Oracle, Part One Security Focus
[5] M. Howard, D. LeBlanc Writing Secure Code, Second Edition Microsoft Press
[6] Standards Mapping - Common Weakness Enumeration CWE ID 89
[7] Standards Mapping - Common Weakness Enumeration Top 25 2019 [6] CWE ID 089
[8] Standards Mapping - Common Weakness Enumeration Top 25 2020 [6] CWE ID 089
[9] Standards Mapping - Common Weakness Enumeration Top 25 2021 [6] CWE ID 089
[10] Standards Mapping - Common Weakness Enumeration Top 25 2022 [3] CWE ID 089
[11] Standards Mapping - Common Weakness Enumeration Top 25 2023 [3] CWE ID 089
[12] Standards Mapping - Common Weakness Enumeration Top 25 2024 [3] CWE ID 089
[13] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001310, CCI-002754
[14] Standards Mapping - FIPS200 SI
[15] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[16] Standards Mapping - NIST Special Publication 800-53 Revision 4 SI-10 Information Input Validation (P1)
[17] Standards Mapping - NIST Special Publication 800-53 Revision 5 SI-10 Information Input Validation
[18] Standards Mapping - OWASP Application Security Verification Standard 4.0 5.3.4 Output Encoding and Injection Prevention Requirements (L1 L2 L3), 5.3.5 Output Encoding and Injection Prevention Requirements (L1 L2 L3)
[19] Standards Mapping - OWASP Mobile 2014 M7 Client Side Injection
[20] Standards Mapping - OWASP Mobile 2024 M4 Insufficient Input/Output Validation
[21] Standards Mapping - OWASP Top 10 2004 A6 Injection Flaws
[22] Standards Mapping - OWASP Top 10 2007 A2 Injection Flaws
[23] Standards Mapping - OWASP Top 10 2010 A1 Injection
[24] Standards Mapping - OWASP Top 10 2013 A1 Injection
[25] Standards Mapping - OWASP Top 10 2017 A1 Injection
[26] Standards Mapping - OWASP Top 10 2021 A03 Injection
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.6
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1, Requirement 6.5.2
[29] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.1
[30] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.1
[31] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.1
[32] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.1
[33] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.1
[34] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[35] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4
[36] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 4.2 - Critical Asset Protection
[37] 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
[38] 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
[39] Standards Mapping - SANS Top 25 2009 Insecure Interaction - CWE ID 089
[40] Standards Mapping - SANS Top 25 2010 Insecure Interaction - CWE ID 089
[41] Standards Mapping - SANS Top 25 2011 Insecure Interaction - CWE ID 089
[42] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I, APP3540.1 CAT I, APP3540.3 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I, APP3540.1 CAT I, APP3540.3 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I, APP3540.1 CAT I, APP3540.3 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I, APP3540.1 CAT I, APP3540.3 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I, APP3540.1 CAT I, APP3540.3 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I, APP3540.1 CAT I, APP3540.3 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I, APP3540.1 CAT I, APP3540.3 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002540 CAT I, APSC-DV-002560 CAT I
[50] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002540 CAT I, APSC-DV-002560 CAT I
[51] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002540 CAT I, APSC-DV-002560 CAT I
[52] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002540 CAT I, APSC-DV-002560 CAT I
[53] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002540 CAT I, APSC-DV-002560 CAT I
[54] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002540 CAT I, APSC-DV-002560 CAT I
[55] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002540 CAT I, APSC-DV-002560 CAT I
[56] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002540 CAT I, APSC-DV-002560 CAT I
[57] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002540 CAT I, APSC-DV-002560 CAT I
[58] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002540 CAT I, APSC-DV-002560 CAT I
[59] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002540 CAT I, APSC-DV-002560 CAT I
[60] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002540 CAT I, APSC-DV-002560 CAT I
[61] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002540 CAT I, APSC-DV-002560 CAT I
[62] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002530 CAT II, APSC-DV-002540 CAT I, APSC-DV-002560 CAT I
[63] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-002530 CAT II, APSC-DV-002540 CAT I, APSC-DV-002560 CAT I
[64] Standards Mapping - Web Application Security Consortium Version 2.00 SQL Injection (WASC-19)
[65] Standards Mapping - Web Application Security Consortium 24 + 2 SQL Injection
desc.dataflow.apex.sosl_injection