Reino: Encapsulation

Encapsulamento consiste em traçar limites fortes. Em um navegador web, isso pode significar que seu código para dispositivos móveis não pode ser abusado por outros códigos para dispositivos móveis. No servidor, pode significar a diferenciação entre dados validados e não validados, entre os dados de dois usuários ou entre os dados que os usuários podem ou não acessar.

Insecure Storage: Android External Storage

Java/JSP

Abstract

O programa grava dados no armazenamento externo do dispositivo Android.

Explanation

Arquivos salvos no armazenamento externo são legíveis publicamente e podem ser modificados pelo usuário quando permitem que armazenamento em massa via USB transfira arquivos em um computador. Além disso, os arquivos no cartão de armazenamento externo permanecerão lá até mesmo após a desinstalação do aplicativo que os gravou. Essas limitações podem comprometer informações confidenciais gravadas no armazenamento ou permitir que os invasores injetem dados mal-intencionados no programa, modificando um arquivo externo no qual ele se baseia.

Exemplo 1: No código a seguir, Environment.getExternalStorageDirectory() retorna uma referência ao armazenamento externo do dispositivo Android.

 private void WriteToFile(String what_to_write) {
        try{
            File root = Environment.getExternalStorageDirectory();
            if(root.canWrite()) {
                File dir = new File(root + "write_to_the_SDcard");
                File datafile = new File(dir, number + ".extension");
                FileWriter datawriter = new FileWriter(datafile);
                BufferedWriter out = new BufferedWriter(datawriter);
                out.write(what_to_write);
                out.close();
             }
        }
   }

References

[1] Data Storage

[2] Paul McNamara Latest 'lost' laptop holds treasure-trove of unencrypted ATT payroll data Network World

[3] Standards Mapping - CIS Azure Kubernetes Service Benchmark 1.0

[4] Standards Mapping - CIS Amazon Elastic Kubernetes Service Benchmark 2.0

[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 partial

[8] Standards Mapping - Common Weakness Enumeration CWE ID 276, CWE ID 313, CWE ID 359, CWE ID 921

[9] Standards Mapping - Common Weakness Enumeration Top 25 2019 [4] CWE ID 200

[10] Standards Mapping - Common Weakness Enumeration Top 25 2020 [7] CWE ID 200

[11] Standards Mapping - Common Weakness Enumeration Top 25 2021 [19] CWE ID 276, [20] CWE ID 200

[12] Standards Mapping - Common Weakness Enumeration Top 25 2022 [20] CWE ID 276

[13] Standards Mapping - Common Weakness Enumeration Top 25 2023 [25] CWE ID 276

[14] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002475

[15] Standards Mapping - FIPS200 MP

[16] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection

[17] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-28 Protection of Information at Rest (P1)

[18] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-28 Protection of Information at Rest

[19] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure

[20] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure

[21] Standards Mapping - OWASP Top 10 2021 A04 Insecure Design

[22] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 6.1.1 Data Classification (L2 L3), 6.1.2 Data Classification (L2 L3), 6.1.3 Data Classification (L2 L3), 6.2.1 Algorithms (L1 L2 L3), 8.1.6 General Data Protection (L3), 8.2.2 Client-side Data Protection (L1 L2 L3), 8.3.4 Sensitive Private Data (L1 L2 L3), 10.2.1 Malicious Code Search (L2 L3)

[23] Standards Mapping - OWASP Mobile 2014 M2 Insecure Data Storage

[24] Standards Mapping - OWASP Mobile 2024 M9 Insecure Data Storage

[25] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-STORAGE-1

[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.3

[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.3

[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.3

[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.3

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

[31] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 3.3 - Sensitive Data Retention, Control Objective 6.1 - Sensitive Data Protection, Control Objective 7 - Use of Cryptography

[32] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 3.3 - Sensitive Data Retention, Control Objective 6.1 - Sensitive Data Protection, Control Objective 7 - Use of Cryptography

[33] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 3.3 - Sensitive Data Retention, Control Objective 6.1 - Sensitive Data Protection, Control Objective 7 - Use of Cryptography

[34] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002340 CAT II

[35] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002340 CAT II

[36] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002340 CAT II

[37] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002340 CAT II

[38] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002340 CAT II

[39] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002340 CAT II

[40] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002340 CAT II

[41] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002340 CAT II

[42] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002340 CAT II

[43] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002340 CAT II

[44] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002340 CAT II

[45] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002340 CAT II

[46] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002340 CAT II

[47] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002340 CAT II

[48] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)

desc.semantic.java.insecure_storage_android_external_storage