界: API Abuse
API 是调用方和被调用方之间的约定。最常见的 API 滥用是由于调用方未能遵守此约定的终止导致的。例如，如果某个程序在调用 chroot() 后未能调用 chdir()，则违反了用于指定如何安全地更改活动根目录的约定。库滥用的另一个典型示例是期望被调用方向调用方返回可信的 DNS 信息。在这种情况下，调用方通过对被调用方行为做出某种假设（返回值可用于身份验证目的）滥用其 API。另一方也可能违反调用方-被调用方约定。例如，如果编码器子类化 SecureRandom 并返回一个非随机值，则将违反此约定。
File Disclosure: Django
Abstract
通过用户输入构建
FileResponse 实例可允许攻击者下载应用程序二进制码，或者查看受保护目录下的任意文件。Explanation
在以下情况下，会发生文件泄露：
1. 数据从一个不可信赖的数据源进入程序。
2. 数据用于动态地构造一个路径。
例 1：以下代码接收不可信的数据并使用它打开返回给用户的文件。
如果攻击者使用请求参数提供与某个敏感文件位置相匹配的 URL，他们将能够查看该文件。例如，使用 "http://www.yourcorp.com/webApp/logic?returnURL=settings.py" 将能够查看该应用程序的“settings.py”。
1. 数据从一个不可信赖的数据源进入程序。
2. 数据用于动态地构造一个路径。
例 1：以下代码接收不可信的数据并使用它打开返回给用户的文件。
from django.http import FileResponse
...
def file_disclosure(request):
path = request.GET['returnURL']
return FileResponse(open(path, 'rb'))
...
如果攻击者使用请求参数提供与某个敏感文件位置相匹配的 URL，他们将能够查看该文件。例如，使用 "http://www.yourcorp.com/webApp/logic?returnURL=settings.py" 将能够查看该应用程序的“settings.py”。
References
[1] Standards Mapping - CIS Azure Kubernetes Service Benchmark 4
[2] Standards Mapping - CIS Microsoft Azure Foundations Benchmark complete
[3] Standards Mapping - CIS Amazon Elastic Kubernetes Service Benchmark 4.1
[4] Standards Mapping - CIS Amazon Web Services Foundations Benchmark 1
[5] Standards Mapping - CIS Google Kubernetes Engine Benchmark confidentiality
[6] Standards Mapping - CIS Kubernetes Benchmark partial
[7] Standards Mapping - Common Weakness Enumeration CWE ID 552
[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002754
[9] Standards Mapping - General Data Protection Regulation (GDPR) Access Violation
[10] Standards Mapping - NIST Special Publication 800-53 Revision 4 SI-10 Information Input Validation (P1)
[11] Standards Mapping - NIST Special Publication 800-53 Revision 5 SI-10 Information Input Validation
[12] Standards Mapping - OWASP Top 10 2004 A1 Unvalidated Input
[13] Standards Mapping - OWASP Top 10 2007 A4 Insecure Direct Object Reference
[14] Standards Mapping - OWASP Top 10 2010 A4 Insecure Direct Object References
[15] Standards Mapping - OWASP Top 10 2013 A4 Insecure Direct Object References
[16] Standards Mapping - OWASP Top 10 2017 A5 Broken Access Control
[17] Standards Mapping - OWASP Top 10 2021 A01 Broken Access Control
[18] Standards Mapping - OWASP API 2023 API1 Broken Object Level Authorization
[19] Standards Mapping - OWASP Application Security Verification Standard 4.0 1.12.1 Secure File Upload Architectural Requirements (L2 L3), 12.5.1 File Download Requirements (L1 L2 L3)
[20] Standards Mapping - OWASP Mobile 2014 M1 Weak Server Side Controls
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.1
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.5.4
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.8
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.8
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.8
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.8
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.8
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[29] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 5.4 - Authentication and Access Control
[30] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 5.4 - Authentication and Access Control
[31] 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
[32] Standards Mapping - SANS Top 25 2009 Risky Resource Management - CWE ID 073
[33] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002560 CAT I
[34] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002560 CAT I
[35] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002560 CAT I
[36] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002560 CAT I
[37] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002560 CAT I
[38] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002560 CAT I
[39] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002560 CAT I
[40] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002560 CAT I
[41] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002560 CAT I
[42] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002560 CAT I
[43] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002560 CAT I
[44] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002560 CAT I
[45] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002560 CAT I
[46] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002560 CAT I
[47] Standards Mapping - Web Application Security Consortium Version 2.00 URL Redirector Abuse (WASC-38)
desc.dataflow.python.file_disclosure_django