apache-formula/Hardening.md

Hardening list

This formula enforce security recommandations from CIS Benchmarks website

From CIS_Apache_HTTP_Server_2.4_Benchmark_v1.4.pdf document

A scoring status indicates whether compliance with the given recommendation impacts the assessed target’s benchmark score.

Items in [level 2] profile exhibit one or more of the following characteristics:

• are intended for environments or use cases where security is paramount
• acts as defense in depth measure
• may negatively inhibit the utility or performance of the technology

In this formula we focus on (Scored) [level 1] items

List of all items with their CIS references

2. Minimize Apache Modules

• 2.1 Enable Only Necessary Authentication and Authorization Modules (Not Scored)
• [X] 2.2 Enable the Log Config Module (Scored)
• [X] 2.3 Disable WebDAV Modules (Scored)
• [X] 2.4 Disable Status Module (Scored)
• [X] 2.5 Disable Autoindex Module (Scored)
• 2.6 Disable Proxy Modules (Scored)
• [X] 2.7 Disable User Directories Modules (Scored)

• [X] 2.8 Disable Info Module (Scored)

  3. Principles, Permissions, and Ownership

• [X] 3.1 Run the Apache Web Server as a non-root user (Scored)

• [X] 3.2 Give the Apache User Account an Invalid Shell (Scored)

• 3.3 Lock the Apache User Account (Scored)

• [X] 3.4 Set Ownership on Apache Directories and Files (Scored)

• [X] 3.5 Set Group Id on Apache Directories and Files (Scored)

• 3.6 Restrict Other Write Access on Apache Directories and Files (Scored)

• [X] 3.7 Secure Core Dump Directory (Scored)

• 3.8 Secure the Lock File (Scored)

• [X] 3.9 Secure the Pid File (Scored)

• [X] 3.10 Secure the ScoreBoard File (Scored)

• [X] 3.11 Restrict Group Write Access for the Apache Directories and Files (Scored)

• [X] 3.12 Restrict Group Write Access for the Document Root Directories and Files (Scored)

  4. Apache Access Control

• [X] 4.1 Deny Access to OS Root Directory (Scored)

• 4.2 Allow Appropriate Access to Web Content (Not Scored)

• [X] 4.3 Restrict Override for the OS Root Directory (Scored)

• [X] 4.4 Restrict Override for All Directories (Scored)

  5. Minimize Features, Content and Options

• [X] 5.1 Restrict Options for the OS Root Directory (Scored)

• [X] 5.2 Restrict Options for the Web Root Directory (Scored)

• [X] 5.3 Minimize Options for Other Directories (Scored)

• [X] 5.4 Remove Default HTML Content (Scored)

• [X] 5.5 Remove Default CGI Content printenv (Scored)

• [X] 5.6 Remove Default CGI Content test-cgi (Scored)

• [X] 5.7 Limit HTTP Request Methods (Scored)

• [X] 5.8 Disable HTTP TRACE Method (Scored)

• [X] 5.9 Restrict HTTP Protocol Versions (Scored)

• [X] 5.10 Restrict Access to .ht* files (Scored)

• 5.11 Restrict File Extensions level 2

• 5.12 Deny IP Address Based Requests level 2

• 5.13 Restrict Listen Directive level 2

• 5.14 Restrict Browser Frame Options level 2

  6. Operations - Logging, Monitoring and Maintenance

• [X] 6.1 Configure the Error Log (Scored)

• 6.2 Configure a Syslog Facility for Error Logging level 2

• [X] 6.3 Configure the Access Log (Scored)

• [X] 6.4 Log Storage and Rotation (Scored)

• 6.5 Apply Applicable Patches (Scored)

• 6.6 Install and Enable ModSecurity level 2

• 6.7 Install and Enable OWASP ModSecurity Core Rule Set level 2

  7. SSL/TLS Configuration

• [X] 7.1 Install mod_ssl and/or mod_nss (Scored)

• 7.2 Install a Valid Trusted Certificate (Scored)

• 7.3 Protect the Server’s Private Key (Scored)

• [X] 7.4 Disable the SSL v3.0 Protocol (Scored)

• 7.5 Restrict Weak SSL/TLS Ciphers (Scored)

• [X] 7.6 Disable SSL Insecure Renegotiation (Scored)

• [X] 7.7 Ensure SSL Compression is not Enabled (Scored)

• 7.8 Restrict Medium Strength SSL/TLS Ciphers (Scored)

• 7.9 Disable the TLS v1.0 Protocol level 2

• 7.10 Enable OCSP Stapling level 2

• 7.11 Enable HTTP Strict Transport Security level 2

  8. Information Leakage

• [X] 8.1 Set ServerToken to ‘Prod’ (Scored)

• [X] 8.2 Set ServerSignature to ‘Off’ (Scored)

• 8.3 Information Leakage via Default Apache Content level 2

• 8.4 Information Leakage via ETag level 2

  9. Denial of Service Mitigations

• [X] 9.1 Set TimeOut to 10 or less (Scored)

• [X] 9.2 Set the KeepAlive directive to On (Scored)

• [X] 9.3 Set MaxKeepAliveRequests to 100 or greater (Scored)

• [X] 9.4 Set KeepAliveTimeout Low to Mitigate Denial of Service (Scored)

• [X] 9.5 Set Timeout Limits for Request Headers (Scored)

• [X] 9.6 Set Timeout Limits for the Request Body (Scored)

  10. Request Limits

• 10.1 Set the LimitRequestLine directive to 512 or less level 2

• 10.2 Set the LimitRequestFields directive to 100 or less level 2

• 10.3 Set the LimitRequestFieldsize directive to 1024 or less level 2

• 10.4 Set the LimitRequestBody directive to 102400 or less level 2

  11. Enable SELinux to Restrict Apache Processes

• 11.1 Enable SELinux in Enforcing Mode level 2

• 11.2 Run Apache Processes in the httpd_t Confined Context level 2

• 11.3 Ensure the httpd_t Type is Not in Permissive Mode level 2

• 11.4 Ensure Only the Necessary SELinux Booleans are Enabled level 2

  12. Enable AppArmor to Restrict Apache Processes

• 12.1 Enable the AppArmor Framework level 2

• 12.2 Customize the Apache AppArmor Profile level 2

• 12.3 Ensure Apache AppArmor Profile is in Enforce Mode level 2