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。

Dynamic Code Evaluation: Unsafe Pickle Deserialization

Python

Abstract

在运行时对用户控制的数据进行反序列化，会让攻击者执行任意代码。

Explanation

Python 官方文档声明：


The pickle module is not intended to be secure against erroneous or maliciously constructed data. Never unpickle data received from an untrusted or unauthenticated source.

Pickle 是强大的序列化库，为开发人员提供了一种传输对象到自定义 Pickle 演示文稿，然后对这些对象进行序列化处理的简单方法。Pickle 通过定义 __reduce__ 方法，允许任意对象声明如何对它们进行反序列化处理。这种方法应该为其返回一个 callable 和多个参数。Pickle 将使用提供的参数调用可调用的对象，以构建允许攻击者执行任意命令的新对象。

References

[1] Python object serialization Python

[2] Python object serialization Python

[3] Python Library Reference Python

[4] Standards Mapping - Common Weakness Enumeration CWE ID 502

[5] Standards Mapping - Common Weakness Enumeration Top 25 2019 [23] CWE ID 502

[6] Standards Mapping - Common Weakness Enumeration Top 25 2020 [21] CWE ID 502

[7] Standards Mapping - Common Weakness Enumeration Top 25 2021 [13] CWE ID 502

[8] Standards Mapping - Common Weakness Enumeration Top 25 2022 [12] CWE ID 502

[9] Standards Mapping - Common Weakness Enumeration Top 25 2023 [15] CWE ID 502

[10] Standards Mapping - Common Weakness Enumeration Top 25 2024 [16] CWE ID 502

[11] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001764, CCI-001774, CCI-002754

[12] Standards Mapping - FIPS200 SI

[13] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data

[14] Standards Mapping - NIST Special Publication 800-53 Revision 4 CM-7 Least Functionality (P1), SI-10 Information Input Validation (P1)

[15] Standards Mapping - NIST Special Publication 800-53 Revision 5 CM-7 Least Functionality, SI-10 Information Input Validation

[16] Standards Mapping - OWASP Application Security Verification Standard 4.0 1.5.2 Input and Output Architectural Requirements (L2 L3), 5.5.1 Deserialization Prevention Requirements (L1 L2 L3), 5.5.3 Deserialization Prevention Requirements (L1 L2 L3)

[17] Standards Mapping - OWASP Mobile 2014 M7 Client Side Injection

[18] Standards Mapping - OWASP Mobile 2024 M4 Insufficient Input/Output Validation

[19] Standards Mapping - OWASP Top 10 2004 A6 Injection Flaws

[20] Standards Mapping - OWASP Top 10 2007 A2 Injection Flaws

[21] Standards Mapping - OWASP Top 10 2010 A1 Injection

[22] Standards Mapping - OWASP Top 10 2013 A1 Injection

[23] Standards Mapping - OWASP Top 10 2017 A8 Insecure Deserialization

[24] Standards Mapping - OWASP Top 10 2021 A08 Software and Data Integrity Failures

[25] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.6

[26] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.3.1.1, Requirement 6.5.2

[27] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.1

[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.1

[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.1

[30] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.1

[31] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.1

[32] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4

[33] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4

[34] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 4.2 - Critical Asset Protection

[35] 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

[36] 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, Control Objective C.3.5 - Web Software Attack Mitigation

[37] Standards Mapping - SANS Top 25 2009 Insecure Interaction - CWE ID 116

[38] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3510 CAT I, APP3570 CAT I

[39] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3510 CAT I, APP3570 CAT I

[40] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3510 CAT I, APP3570 CAT I

[41] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3510 CAT I, APP3570 CAT I

[42] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3510 CAT I, APP3570 CAT I

[43] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3510 CAT I, APP3570 CAT I

[44] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3510 CAT I, APP3570 CAT I

[45] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I

[46] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I

[47] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I

[48] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I

[49] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I

[50] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I

[51] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I

[52] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I

[53] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I

[54] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I

[55] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I

[56] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I

[57] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002560 CAT I

[58] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I

[59] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-001480 CAT II, APSC-DV-001490 CAT II, APSC-DV-002530 CAT II, APSC-DV-002560 CAT I

[60] Standards Mapping - Web Application Security Consortium Version 2.00 Improper Input Handling (WASC-20)

desc.dataflow.python.dynamic_code_evaluation_unsafe_pickle_deserialization