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Security

These FAQs briefly summarise key points regarding securing your Composr site.

For more information, check out these tutorials:

Security

Question	What are the main security features of Composr?
Answer	Composr has a robust set of security features to protect your website, including: Passwords: Visual representation of password quality and enforcement of complexity rules. Password expiry and prevention of re-use. Secure password hashing, even if the database is compromised. Temporary passwords for staff setup. Login Restrictions: Two-factor authentication via IP address approval. IP address banning, including wildcard banning. Session locking to IP addresses. Configurable session expiry times. Ability to prevent privileged actions from auto-logged in sessions. Optional member approval process. Auditing Systems: Comprehensive audit logging of administrative actions. Logging of user actions and IP address history. Tools to analyze audit logs. Failed login logging. Hack attack detection, logging, and banning. Email notifications for changes to user credentials. Framework Security: Protection against CSRF attacks. Click-jacking prevention via CSP implementation. Secure coding standards and scanning techniques. Configurable HTML filtering to prevent XSS attacks. Secure code modularization standards. Other features: Granular privileges and access permissions. Content submission validation process. Rootkit detection system. Spam prevention systems. Web application firewall rules. Moderation systems.

Question	What are some tips for secure website maintenance?
Answer	Avoid FTP: Use secure alternatives like SFTP or SSH for file transfer. Secure Email: Enable SSL for IMAP and POP3 email protocols. Strong Passwords: Use unique and complex passwords for different services. Secure Computers: Keep your own devices patched and secure. Maintenance Password: Remove the maintenance password from _config.php when not in use.

Question	What are the different types of security alerts in Composr?
Answer	Composr has a variety of hack-attack codenames that trigger security alerts and logging. Some common examples include: DODGY_GET_HACK: Suspicious URLs with potentially harmful characters. EVIL_POSTED_FORM_HACK: Possible CSRF attempts via malicious form submissions. SCRIPT_UPLOAD_HACK: Attempts to upload PHP scripts, potentially malicious. DOWNLOAD_PRIVATE_URL_HACK/TRY_TO_DOWNLOAD_SCRIPT: Attempts to download sensitive files. BRUTEFORCE_LOGIN_HACK: Repeated failed login attempts. SQL_INJECTION_HACK: Attempts to exploit SQL queries for data extraction. You can customize alert handling for each type in data_custom/xml_config/advanced_banning.xml (Admin Zone > Security > Configure advanced banning).

Question	How does Composr protect against Cross-Site Scripting (XSS) attacks?
Answer	Composr utilizes multiple layers of defense against XSS attacks: HTML Filtering: Configurable levels of filtering prevent malicious script injection. Content Security Policy (CSP): Restricts the sources from which scripts and other resources can be loaded. Input Sanitization: Data is sanitized before being processed to prevent malicious code execution. Output Encoding: Data displayed to users is properly encoded to prevent interpretation as active code.

Question	How can I enhance the security of my Composr installation on shared hosting?
Answer	Shared hosting environments can be inherently less secure. Here are some tips: Choose a Secure Host: Opt for hosts that offer suEXEC and open_basedir for better account isolation. Test Security: Verify the host's security measures with the provided filesystem_browser.php script. Restrict _config.php: Remove world-writable permissions from _config.php after installation.

Question	What is the purpose of "confirmed" and "non-confirmed" sessions?
Answer	Composr distinguishes between confirmed and non-confirmed sessions for added security: Confirmed: When you actively log in with your credentials. Non-confirmed: When you return to the site and are automatically logged in via cookies. You can configure zones to require confirmed sessions, preventing access from cookie-based logins alone. The Admin Zone uses this by default.

Question	How does Content Security Policy (CSP) contribute to Composr security?
Answer	CSP adds a layer of protection by controlling the resources the browser is allowed to load. It helps prevent: XSS Attacks: By restricting inline scripts and limiting script sources. Data Injection Attacks: By controlling the allowed origins for data requests. Clickjacking: By specifying allowed framing sources. Composr's CSP implementation utilizes "Trusted partner sites" and nonces for fine-grained control.

Question	What additional security measures can I implement for my Composr website?
Answer	SSL: Enable HTTPS for encrypted communication and improved user trust. Secure Zones: Configure sensitive zones to require confirmed sessions. Restrict Logins: Enforce IP address confirmation for enhanced account security. Maintenance Scripts: Restrict access to maintenance scripts like upgrader.php via IP restrictions. Server Hardening: Disable unnecessary services, change default ports, enable automatic updates, and more. Robots.txt: Use the robots.txt file to prevent search engine indexing of sensitive areas.

Question	What steps should I take if my website has been hacked?
Answer	If you suspect a security breach, take immediate action: Identify the Cause: Analyze access logs for suspicious activity and pinpoint the vulnerability. Clean and Restore: Restore your website from a clean backup and thoroughly remove any malicious code. Address Vulnerabilities: Patch security holes, update software, and strengthen security configurations. Seek Expert Help: If needed, consult security professionals for assistance with cleanup and prevention.

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