In Traditional mode, traffic that matches any rule is considered independently of any other rule matches. OWASP has two modes for deciding whether to block traffic: Traditional mode and Anomaly Scoring mode. The Microsoft Threat Intelligence Collection rules are written in partnership with the Microsoft Intelligence team to provide increased coverage, patches for specific vulnerabilities, and better false positive reduction. Microsoft Threat Intelligence Collection rules You can also remove the Default Rule Set from your WAF policies. No other custom rules or the rules in the Default Rule Set are processed. The request is either blocked or passed through to the back-end. If a request matches a custom rule, the corresponding rule action is applied. Additionally, custom rules can be configured in the same WAF policy if you wish to bypass any of the pre-configured rules in the Default Rule Set.Ĭustom rules are always applied before rules in the Default Rule Set are evaluated. You may configure an exclusion list for a managed rule, rule group, or for the entire rule set. A common example is Active Directory-inserted tokens that are used for authentication. Sometimes you may need to omit certain request attributes from a WAF evaluation. You can also set specific actions (ALLOW/BLOCK/REDIRECT/LOG) per rule. You can disable or enable individual rules within the Default Rule Set to meet your application requirements. The version number of the Default Rule Set increments when new attack signatures are added to the rule set.ĭefault Rule Set is enabled by default in Detection mode in your WAF policies. Default rule setsĪzure-managed Default Rule Set includes rules against the following threat categories: Since such rule sets are managed by Azure, the rules are updated as needed to protect against new attack signatures. Azure-managed rule sets provide an easy way to deploy protection against a common set of security threats.
Azure Front Door web application firewall (WAF) protects web applications from common vulnerabilities and exploits.
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