Dockerfile Misconfiguration: Privileged Port

Docker

Abstract

Dockerfile 會開啟 1024 以下的容器連接埠。

Explanation

依據預設，Docker 會允許將具有特權的連接埠繫結至容器，並且如果使用者未宣告連接埠，則 Docker 會將容器連接埠對應至 49153-65535 範圍內的可用連接埠。在許多情況下，需要開啟某些連接埠才能執行服務，並且隨著時間的流逝，開啟的連接埠數量可能會越來越多。開啟的連接埠會增加攻擊面，對於以更高特權執行的服務更是如此。請確保僅開啟該特定服務所需的連接埠。當服務不需要更高的特權時，請在具有特權的連接埠範圍之外的連接埠上執行服務。

References

[1] Docker EXPOSE instruction

[2] Docker Networking User Guide

[3] Standards Mapping - Common Weakness Enumeration CWE ID 20

[4] Standards Mapping - Common Weakness Enumeration Top 25 2019 [3] CWE ID 020

[5] Standards Mapping - Common Weakness Enumeration Top 25 2020 [3] CWE ID 020

[6] Standards Mapping - Common Weakness Enumeration Top 25 2021 [4] CWE ID 020

[7] Standards Mapping - Common Weakness Enumeration Top 25 2022 [4] CWE ID 020

[8] Standards Mapping - Common Weakness Enumeration Top 25 2023 [6] CWE ID 020

[9] Standards Mapping - Common Weakness Enumeration Top 25 2024 [12] CWE ID 020

[10] Standards Mapping - FIPS200 CM

[11] Standards Mapping - General Data Protection Regulation (GDPR) Indirect Access to Sensitive Data

[12] Standards Mapping - OWASP API 2023 API8 Security Misconfiguration

[13] Standards Mapping - OWASP Application Security Verification Standard 4.0 5.1.3 Input Validation Requirements (L1 L2 L3), 5.1.4 Input Validation Requirements (L1 L2 L3)

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

[15] Standards Mapping - OWASP Mobile 2024 M2 Inadequate Supply Chain Security

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

[17] Standards Mapping - OWASP Top 10 2010 A6 Security Misconfiguration

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

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

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

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

[22] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 6.5.6

[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 6.5.6

[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 6.5.6

[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 6.5.6

[26] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 6.2.4

[27] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 6.2.4

[28] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 4.2 - Critical Asset Protection

[29] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 4.2 - Critical Asset Protection

[30] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 4.2 - Critical Asset Protection

[31] Standards Mapping - SANS Top 25 2009 Insecure Interaction - CWE ID 020

[32] Standards Mapping - Web Application Security Consortium Version 2.00 Application Misconfiguration (WASC-15)

desc.configuration.docker.dockerfile_misconfiguration_privileged_port