Kingdom: Security Features

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

Authentication Bad Practice: Missing Check against Evaluation Result

Objective-C
Swift

Explanation

Before creating a server trust credential, it is the responsibility of the delegate of an NSURLConnection object, NSURLSession object or an NSURLDownload object to evaluate the server trust. In order to evaluate the server trust, the SecTrustEvaluate(_:_:) method should be called with the trust obtained from the serverTrust method of the server's NSURLProtectionSpace object.

The SecTrustEvaluate(_:_:) method returns two different values:

- The returned OSStatus value represents the result code.
- The object pointed by the second argument represents the result type of the evaluation.

If the trust is invalid, the authentication challenge should be canceled with cancel(_:).

Example 1: In the following example, the server trust is evaluated but the received credentials are used without checking the result of this evaluation:


SecTrustRef trust = [[challenge protectionSpace] serverTrust];
SecTrustResultType result = kSecTrustResultInvalid;
OSStatus status = SecTrustEvaluate(trust, &result);
completionHandler(NSURLSessionAuthChallengeUseCredential, [challenge proposedCredential]);

References

[1] init(trust:) API documentation Apple

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

[3] Standards Mapping - CIS Microsoft Azure Foundations Benchmark partial

[4] Standards Mapping - CIS Amazon Elastic Kubernetes Service Benchmark 5

[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 complete

[8] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000068, CCI-001453, CCI-001941, CCI-001942, CCI-002418, CCI-002420, CCI-002421, CCI-002422

[9] Standards Mapping - FIPS200 SC

[10] Standards Mapping - General Data Protection Regulation (GDPR) Access Violation

[11] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-8 Transmission Confidentiality and Integrity (P1)

[12] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-8 Transmission Confidentiality and Integrity

[13] Standards Mapping - OWASP Top 10 2004 A10 Insecure Configuration Management

[14] Standards Mapping - OWASP Top 10 2007 A9 Insecure Communications

[15] Standards Mapping - OWASP Top 10 2010 A9 Insufficient Transport Layer Protection

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

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

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

[19] Standards Mapping - OWASP API 2023 API2 Broken Authentication

[20] Standards Mapping - OWASP Mobile 2014 M3 Insufficient Transport Layer Protection

[21] Standards Mapping - OWASP Mobile 2024 M3 Insecure Authentication/Authorization

[22] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-NETWORK-1

[23] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 4.1, Requirement 6.5.10

[24] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 4.1, Requirement 6.3.1.4, Requirement 6.5.9

[25] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 4.1, Requirement 6.5.4

[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 4.1, Requirement 6.5.4

[27] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 4.1, Requirement 6.5.4

[28] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 4.1, Requirement 6.5.4

[29] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 4.1, Requirement 6.5.4

[30] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 4.2.1, Requirement 6.2.4

[31] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 6.2 - Sensitive Data Protection, Control Objective 7.1 - Use of Cryptography

[32] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 6.2 - Sensitive Data Protection, Control Objective 7.1 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design

[33] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 6.2 - Sensitive Data Protection, Control Objective 7.1 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design, Control Objective C.4.1 - Web Software Communications

[34] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II, APP3260.1 CAT II

[35] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II, APP3260 CAT II

[36] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II, APP3260 CAT II

[37] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II, APP3260 CAT II

[38] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II, APP3260 CAT II

[39] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II, APP3260 CAT II

[40] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3250.1 CAT I, APP3250.2 CAT I, APP3250.3 CAT II, APP3250.4 CAT II, APP3260 CAT II

[41] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-000180 CAT II, APSC-DV-000260 CAT II, APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II

[42] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-000180 CAT II, APSC-DV-000260 CAT II, APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II

[43] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-000180 CAT II, APSC-DV-000260 CAT II, APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II

[44] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-000180 CAT II, APSC-DV-000260 CAT II, APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II

[45] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-000180 CAT II, APSC-DV-000260 CAT II, APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II

[46] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-000180 CAT II, APSC-DV-000260 CAT II, APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II

[47] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-000180 CAT II, APSC-DV-000260 CAT II, APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II

[48] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-000180 CAT II, APSC-DV-000260 CAT II, APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II

[49] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-000180 CAT II, APSC-DV-000260 CAT II, APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II

[50] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-000180 CAT II, APSC-DV-000260 CAT II, APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II

[51] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-000180 CAT II, APSC-DV-000260 CAT II, APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II

[52] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-000180 CAT II, APSC-DV-000260 CAT II, APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II

[53] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-000180 CAT II, APSC-DV-000260 CAT II, APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II

[54] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000180 CAT II, APSC-DV-000260 CAT II, APSC-DV-001620 CAT II, APSC-DV-001630 CAT II, APSC-DV-002440 CAT I, APSC-DV-002450 CAT II, APSC-DV-002460 CAT II, APSC-DV-002470 CAT II

[55] Standards Mapping - Web Application Security Consortium Version 2.00 Insufficient Transport Layer Protection (WASC-04)

[56] Standards Mapping - Web Application Security Consortium 24 + 2 Insufficient Authentication

desc.structural.objc.authentication_bad_practice_missing_check_against_evaluation_result

Explanation


let trust = challenge.protectionSpace.serverTrust
var result = SecTrustResultType.invalid
let status = SecTrustEvaluate(trust!,&secresult)
completionHandler(Foundation.URLSession.AuthChallengeDisposition.useCredential, challenge.proposedCredential)