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SCG WS Apache

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This article is part of the OWASP Secure Configuration Guide.
Back to the OWASP Secure Configuration Guide ToC: https://www.owasp.org/index.php/Secure_Configuration_Guide Back to the OWASP Secure Configuration Guide Project: https://www.owasp.org/index.php/OWASP_Secure_Configuration_Guide


Summary

The Apache HTTP Server Project is a collaborative software development effort aimed at creating a robust, commercial-grade, featureful, and freely-available source code implementation of an HTTP (Web) server. The project is jointly managed by a group of volunteers located around the world, using the Internet and the Web to communicate, plan, and develop the server and its related documentation. This project is part of the Apache Software Foundation. In addition, hundreds of users have contributed ideas, code, and documentation to the project. This file is intended to briefly describe the history of the Apache HTTP Server and recognize the many contributors.

Important Files of Apache Server

Apache Configuration Files

Linux

Debian

/etc/apache2/apache2.conf

RHEL / Red Hat / CentOS / Fedora Linux

/etc/httpd/conf/httpd.conf

FreeBSD

/usr/local/etc/apache2x/httpd.conf
Note:x represents the version number

Windows

Apache Error Files

Linux

Debian

/var/log/apache2/error.log

RHEL / Red Hat / CentOS / Fedora Linux

var/log/httpd/error_log

FreeBSD

/var/log/httpd-error.log

Windows

Apache Server Information Leakage

Server Token

Description

By Default Apache ServerToken directive reveals the below information.

Server: Apache/2.2.14 (Unix) mod_ssl/2.2.14 OpenSSL/0.9.8e-fips-rhel5

This allows attackers to identify web servers details greatly and increases the efficiency of any attack,as security vulnerabilities are dependent upon specific software versions.

How to test

In order to test for ServerToken configuration, one should check the Apache configuration file.

Misconfiguration

ServerTokens Full

Remediation

Configure the ServerTokens directive in the Apache configuration to value of Prod or ProductOnly

ServerTokens Prod
or
ServerTokens ProductOnly

References

https://httpd.apache.org/docs/current/misc/security_tips.html

https://wiki.debian.org/Apache/Hardening