계: Environment
이 섹션에는 소스 코드 외부에 있지만 제작 중인 제품의 보안에는 여전히 중요한 내용이 모두 포함되어 있습니다. 이 섹션에서 다루는 문제들은 소스 코드와 직접적으로 관련이 없기 때문에 나머지 섹션과 분리했습니다.
J2EE Misconfiguration: Excessive Session Timeout
Abstract
지나치게 긴 세션 시간 초과는 공격자에게 사용자 계정을 잠재적으로 손상시킬 수 있는 시간을 더 많이 제공합니다.
Explanation
세션을 더 오래 열어둘수록, 공격자가 사용자 계정을 손상시킬 수 있는 기회는 더 커집니다. 세션이 활성화 상태라면 공격자는 사용자의 암호를 무차별 대입하거나 사용자의 무선 암호화 키를 불법으로 복제하거나 열려 있는 브라우저에서 세션을 제멋대로 쓸 수도 있습니다. 또한 세션 초과 시간이 더 길어지면 메모리가 해제되지 못하도록 하여 결국 충분히 많은 세션이 만들어지는 경우 Denial of Service가 발생됩니다.
예제 1: 세션 시간 초과가 0 또는 0 미만일 경우, 세션은 만료되지 않습니다. 다음 예는 -1로 설정된 세션 시간 초과를 보여주며 이로 인해 세션은 무기한으로 활성화 상태가 됩니다.
예제 1: 세션 시간 초과가 0 또는 0 미만일 경우, 세션은 만료되지 않습니다. 다음 예는 -1로 설정된 세션 시간 초과를 보여주며 이로 인해 세션은 무기한으로 활성화 상태가 됩니다.
<session-config>
<session-timeout>-1</session-timeout>
</session-config>
<session-timeout> 태그는 웹 응용 프로그램의 모든 세션에 대해 기본 세션 시간 초과 간격을 정의합니다. <session-timeout> 태그가 누락된 경우, 기본 시간 초과를 설정하도록 컨테이너에 맡겨집니다.References
[1] Sun Microsystems, Inc. Java Servlet Specification 2.4
[2] Standards Mapping - Common Weakness Enumeration CWE ID 613
[3] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-000879, CCI-002361, CCI-004190
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[14] Standards Mapping - OWASP Top 10 2013 A2 Broken Authentication and Session Management
[15] Standards Mapping - OWASP Top 10 2017 A2 Broken Authentication
[16] Standards Mapping - OWASP Top 10 2021 A07 Identification and Authentication Failures
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[18] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 6.5.7, Requirement 8.5.15
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 6.5.8, Requirement 8.5.15
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.10, Requirement 8.1.8
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.10, Requirement 8.1.8
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.10, Requirement 8.1.8
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.10, Requirement 8.1.8
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4, Requirement 8.2.8
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[31] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3415 CAT II
[32] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3415 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3415 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3415 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3415 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-000070 CAT II, APSC-DV-000080 CAT II, APSC-DV-001980 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-000070 CAT II, APSC-DV-000080 CAT II, APSC-DV-001980 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-000070 CAT II, APSC-DV-000080 CAT II, APSC-DV-001980 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-000070 CAT II, APSC-DV-000080 CAT II, APSC-DV-001980 CAT II
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[44] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-000070 CAT II, APSC-DV-000080 CAT II, APSC-DV-001980 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-000070 CAT II, APSC-DV-000080 CAT II, APSC-DV-001980 CAT II
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[48] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-000070 CAT II, APSC-DV-000080 CAT II, APSC-DV-001980 CAT II
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[51] Standards Mapping - Web Application Security Consortium Version 2.00 Insufficient Session Expiration (WASC-47)
[52] Standards Mapping - Web Application Security Consortium 24 + 2 Insufficient Session Expiration
desc.config.java.j2ee_misconfiguration_excessive_session_timeout