계: Code Quality
코드 품질이 낮으면 예측할 수 없는 동작이 발생합니다. 사용자 입장에서는 사용 편의성이 떨어지는 것으로 나타나는 경우가 많습니다. 공격자에게는 예상치 못한 방법으로 시스템에 부담을 줄 수 있는 기회가 됩니다.
Android Bad Practices: Use of Released Camera Resource
Abstract
코드는 미리 릴리스한 후
Camera
개체를 참조합니다.Explanation
코드는 미리 릴리스한 후
예제: 다음 코드는 토글 버튼을 사용하여 카메라 미리보기를 토글 설정하거나 해제합니다. 사용자가 버튼을 한 번 누르고 나면 카메라 미리보기가 중단되고 카메라 리소스가 릴리스됩니다. 그러나 버튼을 다시 누르면
Camera
개체를 사용하려 합니다. 리소스를 다시 획득하지 않은 Camera
개체에 대한 자세한 참조는 예외를 발생시키며 예외가 발생하지 않은 경우, 응용 프로그램 손상을 일으킬 수 있습니다.예제: 다음 코드는 토글 버튼을 사용하여 카메라 미리보기를 토글 설정하거나 해제합니다. 사용자가 버튼을 한 번 누르고 나면 카메라 미리보기가 중단되고 카메라 리소스가 릴리스됩니다. 그러나 버튼을 다시 누르면
startPreview()
가 미리 릴리스한 Camera
개체에서 호출됩니다.
public class ReuseCameraActivity extends Activity {
private Camera cam;
...
private class CameraButtonListener implements OnClickListener {
public void onClick(View v) {
if (toggle) {
cam.stopPreview();
cam.release();
}
else {
cam.startPreview();
}
toggle = !toggle;
}
}
...
}
References
[1] Camera, Android Developers
[2] Standards Mapping - CIS Azure Kubernetes Service Benchmark 1.0
[3] Standards Mapping - CIS Amazon Elastic Kubernetes Service Benchmark 4.0
[4] Standards Mapping - CIS Amazon Web Services Foundations Benchmark 1
[5] Standards Mapping - CIS Google Kubernetes Engine Benchmark normal
[6] Standards Mapping - Common Weakness Enumeration CWE ID 416
[7] Standards Mapping - Common Weakness Enumeration Top 25 2019 [1] CWE ID 119, [7] CWE ID 416
[8] Standards Mapping - Common Weakness Enumeration Top 25 2020 [5] CWE ID 119, [8] CWE ID 416
[9] Standards Mapping - Common Weakness Enumeration Top 25 2021 [7] CWE ID 416
[10] Standards Mapping - Common Weakness Enumeration Top 25 2022 [7] CWE ID 416
[11] Standards Mapping - Common Weakness Enumeration Top 25 2023 [4] CWE ID 416
[12] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-001094
[13] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data
[14] Standards Mapping - NIST Special Publication 800-53 Revision 4 SC-5 Denial of Service Protection (P1)
[15] Standards Mapping - NIST Special Publication 800-53 Revision 5 SC-5 Denial of Service Protection
[16] Standards Mapping - OWASP Top 10 2004 A9 Application Denial of Service
[17] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CODE-4
[18] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 6.5.9
[19] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.6
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.6
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.6
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.6
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4
[24] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 4.2 - Critical Asset Protection
[25] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 4.2 - Critical Asset Protection
[26] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 4.2 - Critical Asset Protection
[27] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP6080 CAT II
[28] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP6080 CAT II
[29] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP6080 CAT II
[30] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP6080 CAT II
[31] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP6080 CAT II
[32] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP6080 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP6080 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002400 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002400 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002400 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002400 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002400 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002400 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002400 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002400 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002400 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002400 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002400 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002400 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002400 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-002400 CAT II
[48] Standards Mapping - Web Application Security Consortium Version 2.00 Denial of Service (WASC-10)
[49] Standards Mapping - Web Application Security Consortium 24 + 2 Denial of Service
desc.controlflow.java.android_bad_practices_use_of_released_camera_resource