+Restrict Web-Based Content

Restrict Web-Based Content

Restricting web-based content involves enforcing policies and technologies that limit access to potentially malicious websites, unsafe downloads, and unauthorized browser behaviors. This can include URL filtering, download restrictions, script blocking, and extension control to protect against exploitation, phishing, and malware delivery. This mitigation can be implemented through the following measures: Deploy Web Proxy Filtering: - Use solutions to filter web traffic based on categories, reputation, and content types. - Enforce policies that block unsafe websites or file types at the gateway level. Enable DNS-Based Filtering: - Implement tools to restrict access to domains associated with malware or phishing campaigns. - Use public DNS filtering services to enhance protection. Enforce Content Security Policies (CSP): - Configure CSP headers on internal and external web applications to restrict script execution, iframe embedding, and cross-origin requests. Control Browser Features: - Disable unapproved browser features like automatic downloads, developer tools, or unsafe scripting. - Enforce policies through tools like Group Policy Management to control browser settings. Monitor and Alert on Web-Based Threats: - Use SIEM tools to collect and analyze web proxy logs for signs of anomalous or malicious activity. - Configure alerts for access attempts to blocked domains or repeated file download failures.

1. Overview

1.1 References

1.2 Identified Requirements

1.3 Related Regulations

2. Identified Requirements

Requirements

3. Related Regulations

Regulations

Linked Issues

Issuelinks
is related to Mitigations
blocks Content Injection
blocks Bidirectional Communication
blocks Spearphishing Link
blocks Steal Application Access Token
blocks Steal Web Session Cookie
blocks Compiled HTML File
blocks Dynamic Resolution
blocks Dead Drop Resolver
blocks User Execution
blocks External Remote Services
blocks Drive-by Compromise
blocks Spearphishing via Service
blocks Exfiltration Over Web Service
blocks Domain Generation Algorithms
blocks Application Access Token
blocks Web Service
blocks Phishing
blocks Malicious Copy and Paste
blocks Visual Basic
blocks One-Way Communication
blocks Trusted Developer Utilities Proxy Execution
blocks JavaScript
blocks Credentials from Web Browsers
blocks Exfiltration to Cloud Storage
blocks Command and Scripting Interpreter
blocks System Binary Proxy Execution
blocks Exfiltration to Code Repository
blocks ClickOnce
blocks Exfiltration to Text Storage Sites
blocks Malicious Link
blocks Spearphishing Attachment
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