Configuring a Global Protection Whitelist (Formerly False Alarm Masking) Rule

Prerequisites

You have added the website you want to protect to WAF.

Constraints

• You can configure false alarm masking rules only for attack events blocked or recorded by basic web protection rules preset in WAF.
• If you select All protection for Ignore WAF Protection, all WAF rules do not take effect, and WAF allows all request traffic to the domain names in the rule.
• If you select Basic web protection for Ignore WAF Protection, global protection whitelist (formerly false alarm masking) rules take effect only for events triggered against WAF built-in rules in Basic Web Protection and anti-crawler rules under Feature Library.
  • Basic web protection rules

    Basic web protection defends against common web attacks, such as SQL injection, XSS attacks, remote buffer overflow attacks, file inclusion, Bash vulnerability exploits, remote command execution, directory traversal, sensitive file access, and command and code injections. Basic web protection also detects web shells and evasion attacks.

  • Feature-based anti-crawler protection

    Feature-based anti-crawler identifies and blocks crawler behavior from search engines, scanners, script tools, and other crawlers.

• It takes several minutes for a new rule to take effect. After the rule takes effect, protection events triggered by the rule will be displayed on the Events page.
• You can configure a global protection whitelist (formerly false alarm masking) rule by referring to Handling False Alarms. After handling a false alarm, you can view the rule in the global protection whitelist (formerly false alarm masking) rule list.

Procedure

1. Log in to the management console.
2. Click in the upper left corner of the management console and select a region or project.
3. Click in the upper left corner and choose Web Application Firewall under Security & Compliance.
4. In the navigation pane on the left, choose Website Settings.
5. In the Policy column of the row containing the domain name, click the number to go to the Policies page.
6. In the Global Protection Whitelist (Formerly False Alarm Masking) configuration area, click Status if needed. Then, click Customize Rule.
7. In the upper left corner of the Global Protection Whitelist page, click Add Rule.
8. Add a global protection whitelist rule by referring to Table 1.

   Table 1 Parameters

   Parameter	Description	Example Value
   Scope	All domain names: By default, this rule will be used to all domain names that are protected by the current policy. Scope: Specify a domain name range this rule applies to.	Specified domain names
   Domain Name	This parameter is mandatory when you select Specified domain names for Scope. Enter a single domain name that matches the wildcard domain name being protected by the current policy.	www.example.com
   Condition List	Click Add to add conditions. At least one condition needs to be added. You can add up to 30 conditions to a protection rule. If more than one condition is added, all of the conditions must be met for the rule to be applied. A condition includes the following parameters: Parameters for configuring a condition are described as follows: Field Subfield: Configure this field only when Params, Cookie, or Header is selected for Field. NOTICE: The length of a subfield cannot exceed 2,048 bytes. Only digits, letters, underscores (_), and hyphens (-) are allowed. Logic: Select a logical relationship from the drop-down list. Content: Enter or select the content that matches the condition.	Path, Include, /product
   Ignore WAF Protection	All protection: All WAF rules do not take effect, and WAF allows all request traffic to the domain names in the rule. Basic Web Protection: You can ignore basic web protection by rule ID, attack type, or all built-in rules. For example, if XSS check is not required for a URL, you can whitelist XSS rule.	Basic Web Protection
   Ignored Protection Type	If you select Basic web protection for Ignored Protection Type, specify the following parameters: ID: Configure the rule by event ID. Attack type: Configure the rule by attack type, such as XSS and SQL injection. One type contains one or more rule IDs. All built-in rules: all checks enabled in Basic Web Protection.	Attack type
   ID	This parameter is mandatory when you select ID for Ignored Protection Type. ID of an attack event on the Events page. If the event type is Custom, it has no event ID. Click Handle False Alarm in the row containing the attack event to obtain the ID. You are advised to configure global protection whitelist (formerly false alarm masking) rules on the Events page by referring to Handling False Alarms.	041046
   Attack type	This parameter is mandatory when you select Attack type for Ignored Protection Type. Select an attack type from the drop-down list box. WAF can defend against XSS attacks, web shells, SQL injection attacks, malicious crawlers, remote file inclusions, local file inclusions, command injection attacks, and other attacks.	SQL injection
   Rule Description	A brief description of the rule. This parameter is optional.	SQL injection attacks are not intercepted.
   Advanced Settings	To ignore attacks of a specific field, specify the field in the Advanced Settings area. After you add the rule, WAF will stop blocking attack events of the specified field. Select a target field from the first drop-down list box on the left. The following fields are supported: Params, Cookie, Header, Body, and Multipart. If you select Params, Cookie, or Header, you can select All or Specified field to configure a subfield. If you select Body or Multipart, you can select All. If you select Cookie, the Domain Name can be empty. NOTE: If All is selected, WAF will not block all attack events of the selected field.	Params All

9. Click OK.

Other Operations

• To disable a rule, click Disable in the Operation column of the rule. The default Rule Status is Enabled.
• To modify a global protection whitelist (formerly false alarm masking) rule, click Modify in the row containing the rule.
• To delete a global protection whitelist (formerly false alarm masking) rule, click Delete in the row containing the rule.