Kingdom: Security Features

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

Cookie Security: Overly Broad Session Cookie Domain

Abstract
A session cookie with an overly broad domain can be accessed by applications that share the same base domain.
Explanation
Developers often set session cookies to be a base domain such as ".example.com". However, doing so exposes the session cookie to all web applications on the base domain name and any sub-domains. Leaking session cookies can lead to account compromises.

Example 1: Suppose you have a secure application deployed at http://secure.example.com/ and the application sets a session cookie with the domain ".example.com" when users log in.

The application's configuration file would have the following entry:

server.servlet.session.cookie.domain=.example.com


Suppose you have another less secure application at http://insecure.example.com/ and it contains a cross-site scripting vulnerability. Any user authenticated to http://secure.example.com that browses to http://insecure.example.com risks exposing their session cookie from http://secure.example.com.
References
[1] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001368, CCI-001414
[2] Standards Mapping - FIPS200 CM
[3] Standards Mapping - General Data Protection Regulation (GDPR) Access Violation
[4] Standards Mapping - NIST Special Publication 800-53 Revision 4 AC-4 Information Flow Enforcement (P1)
[5] Standards Mapping - NIST Special Publication 800-53 Revision 5 AC-4 Information Flow Enforcement
[6] Standards Mapping - OWASP API 2023 API8 Security Misconfiguration
[7] Standards Mapping - OWASP Mobile 2014 M4 Unintended Data Leakage
[8] Standards Mapping - OWASP Mobile 2024 M3 Insecure Authentication/Authorization
[9] Standards Mapping - OWASP Top 10 2004 A10 Insecure Configuration Management
[10] Standards Mapping - OWASP Top 10 2007 A6 Information Leakage and Improper Error Handling
[11] Standards Mapping - OWASP Top 10 2010 A6 Security Misconfiguration
[12] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[13] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[14] Standards Mapping - OWASP Top 10 2021 A05 Security Misconfiguration
[15] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.3
[16] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.5.7
[17] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.10
[18] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.10
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.10
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.10
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[22] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 4.2 - Critical Asset Protection
[23] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 4.2 - Critical Asset Protection
[24] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 4.2 - Critical Asset Protection
[25] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[26] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[27] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[28] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[29] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[30] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[31] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[32] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[40] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
[41] Standards Mapping - Web Application Security Consortium 24 + 2 Information Leakage
desc.config.java.cookie_security_overly_broad_session_cookie_domain
Abstract
A session cookie with an overly broad domain can be attacked through other applications that share the same base domain.
Explanation
Developers often set session cookies to be a base domain such as ".example.com". This exposes the session cookie to all web applications on the base domain and any sub-domains. Sharing session cookies across applications can lead to a vulnerability in one application causing a compromise in another.

Example 1:
Suppose you have a secure application deployed at http://secure.example.com/ and the application sets a session cookie with the domain ".example.com" when users log in.

For example:

session_set_cookie_params(0, "/", ".example.com", true, true);


Suppose you have another less secure application at http://insecure.example.com/ and it contains a cross-site scripting vulnerability. Any user authenticated to http://secure.example.com that browses to http://insecure.example.com risks exposing their session cookie from http://secure.example.com.
References
[1] session_set_cookie_params The PHP Group
[2] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001368, CCI-001414
[3] Standards Mapping - FIPS200 CM
[4] Standards Mapping - General Data Protection Regulation (GDPR) Access Violation
[5] Standards Mapping - NIST Special Publication 800-53 Revision 4 AC-4 Information Flow Enforcement (P1)
[6] Standards Mapping - NIST Special Publication 800-53 Revision 5 AC-4 Information Flow Enforcement
[7] Standards Mapping - OWASP API 2023 API8 Security Misconfiguration
[8] Standards Mapping - OWASP Mobile 2014 M4 Unintended Data Leakage
[9] Standards Mapping - OWASP Mobile 2024 M3 Insecure Authentication/Authorization
[10] Standards Mapping - OWASP Top 10 2004 A10 Insecure Configuration Management
[11] Standards Mapping - OWASP Top 10 2007 A6 Information Leakage and Improper Error Handling
[12] Standards Mapping - OWASP Top 10 2010 A6 Security Misconfiguration
[13] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[14] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[15] Standards Mapping - OWASP Top 10 2021 A05 Security Misconfiguration
[16] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.3
[17] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.5.7
[18] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.10
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.10
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.10
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.10
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[23] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 4.2 - Critical Asset Protection
[24] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 4.2 - Critical Asset Protection
[25] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 4.2 - Critical Asset Protection
[26] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[27] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[28] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[29] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[30] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[31] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[32] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-000480 CAT II, APSC-DV-000490 CAT II
[41] Standards Mapping - Web Application Security Consortium Version 2.00 Information Leakage (WASC-13)
[42] Standards Mapping - Web Application Security Consortium 24 + 2 Information Leakage
desc.semantic.php.cookie_security_overly_broad_session_cookie_domain