Kingdom: Security Features

Software security is not security software. Here we're concerned with topics like authentication, access control, confidentiality, cryptography, and privilege management.

HTML5: Sensitive Information Disclosure via Client-Side Storage

Universal

Abstract

Improper use of client-side storage might lead to disclosure of sensitive information.

Explanation

Sensitive information persisted using HTML5 storage objects are stored on the client-side. While this option might seem attractive from a performance perspective, any information stored on the client is easily accessible and can pose a security risk if it is accessed by an unauthorized third party.
Storing sensitive information in the localStorage or sessionStorage objects provided by HTML5 is not a secure. While this information might not be visible to a naive user, a technically savvy person could easily retrieve this data from a browser. If an application exhibiting this behavior is used in a publicly accessible computer, then a malicious user can steal any data stored on the client.

References

[1] Standards Mapping - Common Weakness Enumeration CWE ID 359

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

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

[4] Standards Mapping - Common Weakness Enumeration Top 25 2021 [20] CWE ID 200

[5] Standards Mapping - Common Weakness Enumeration Top 25 2024 [17] CWE ID 200

[6] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001368, CCI-001414, CCI-002361, CCI-002367

[7] Standards Mapping - General Data Protection Regulation (GDPR) Privacy Violation

[8] Standards Mapping - NIST Special Publication 800-53 Revision 4 AC-4 Information Flow Enforcement (P1), AC-12 Session Termination (P2), IA-5 Authenticator Management (P1)

[9] Standards Mapping - NIST Special Publication 800-53 Revision 5 AC-4 Information Flow Enforcement, AC-12 Session Termination

[10] Standards Mapping - OWASP Application Security Verification Standard 4.0 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)

[11] Standards Mapping - OWASP Mobile 2014 M1 Weak Server Side Controls

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

[13] Standards Mapping - OWASP Top 10 2013 A5 Security Misconfiguration

[14] Standards Mapping - OWASP Top 10 2017 A6 Security Misconfiguration

[15] Standards Mapping - OWASP Top 10 2021 A05 Security Misconfiguration

[16] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.10

[17] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.3.1

[18] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.3.1

[19] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.3.1

[20] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.5.3, Requirement 6.5.4, Requirement 6.5.6

[21] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.5.3, Requirement 6.5.4, Requirement 6.5.6

[22] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 6.1 - Sensitive Data Protection

[23] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 6.1 - Sensitive Data Protection

[24] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 6.1 - Sensitive Data Protection

[25] Standards Mapping - SANS Top 25 2011 Porous Defenses - CWE ID 311

[26] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-000060 CAT II, APSC-DV-000480 CAT II, APSC-DV-000490 CAT II, APSC-DV-003110 CAT I

[27] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-000060 CAT II, APSC-DV-000480 CAT II, APSC-DV-000490 CAT II, APSC-DV-003110 CAT I

[28] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-000060 CAT II, APSC-DV-000480 CAT II, APSC-DV-000490 CAT II, APSC-DV-003110 CAT I

[29] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-000060 CAT II, APSC-DV-000480 CAT II, APSC-DV-000490 CAT II, APSC-DV-003110 CAT I

[30] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-000060 CAT II, APSC-DV-000480 CAT II, APSC-DV-000490 CAT II, APSC-DV-003110 CAT I

[31] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-000060 CAT II, APSC-DV-000480 CAT II, APSC-DV-000490 CAT II, APSC-DV-003110 CAT I

[32] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-000060 CAT II, APSC-DV-000480 CAT II, APSC-DV-000490 CAT II, APSC-DV-003110 CAT I

[33] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-000060 CAT II, APSC-DV-000480 CAT II, APSC-DV-000490 CAT II, APSC-DV-003110 CAT I

[34] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-000060 CAT II, APSC-DV-000480 CAT II, APSC-DV-000490 CAT II, APSC-DV-003110 CAT I

[35] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-000060 CAT II, APSC-DV-000480 CAT II, APSC-DV-000490 CAT II, APSC-DV-003110 CAT I

[36] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-000060 CAT II, APSC-DV-000480 CAT II, APSC-DV-000490 CAT II, APSC-DV-003110 CAT I

[37] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-000060 CAT II, APSC-DV-000480 CAT II, APSC-DV-000490 CAT II, APSC-DV-003110 CAT I

[38] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-000060 CAT II, APSC-DV-000480 CAT II, APSC-DV-000490 CAT II, APSC-DV-003110 CAT I

[39] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000060 CAT II, APSC-DV-000480 CAT II, APSC-DV-000490 CAT II, APSC-DV-003110 CAT I

[40] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-000060 CAT II, APSC-DV-000480 CAT II, APSC-DV-000490 CAT II, APSC-DV-003110 CAT I

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

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