If WAF blocks a malicious request by IP address, Cookie, or Params, you can configure a known attack source rule to let WAF automatically block all requests from the attack source for a blocking duration set in the known attack source rule. For example, if a blocked malicious request originates from an IP address and you set the blocking duration to 500 seconds, WAF will block the IP address for 500 seconds after the known attack source rule takes effect.
Prerequisites
A website has been added to WAF.
Constraints
- For a known attack source rule to take effect, it must be enabled when you configure basic web protection, precise protection, blacklist, or whitelist protection rules.
- 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.
- Before adding a known attack source rule for malicious requests blocked by Cookie or Params, a traffic identifier must be configured for the corresponding domain name. For more details, see Configuring a Traffic Identifier for a Known Attack Source.
Specification Limitations
- You can configure up to six blocking types. Each type can have one known attack source rule configured.
- The maximum time an IP address can be blocked for is 30 minutes.
Procedure
- Log in to the management console.
- Click
in the upper left corner of the management console and select a region or project. - Click
in the upper left corner and choose Web Application Firewall (Dedicated) under Security. - In the navigation pane, choose Website Settings.
- In the Policy column of the row containing the target website, click the number to go to the policy configuration page.
- In the Known Attack Source configuration area, change Status if needed and click Customize Rule to go to the Known Attack Source page. Figure 1 shows an example.
Figure 1 Known Attack Source configuration
- In the upper left corner of the known attack source rules, click Add Known Attack Source Rule.
- In the displayed dialog box, specify the parameters by referring to Table 1. Figure 2 shows an example.
Figure 2 Add Known Attack Source Rule
Table 1 Known attack source parametersParameter
|
Description
|
Example Value
|
Blocking Type
|
Specifies the blocking type. The options are:
- Long-term IP address blocking
- Short-term IP address blocking
- Long-term Cookie blocking
- Short-term Cookie blocking
- Long-term Params blocking
- Short-term Params blocking
|
Long-term IP address blocking
|
Blocking Duration (s)
|
The blocking duration must be an integer and range from:
- (300, 1800] for long-term blocking
- (0, 300] for short-term blocking
|
500
|
Rule Description
|
A brief description of the rule. This parameter is optional.
|
None
|
- Click Confirm. You can then view the added known attack source rule in the list.
Figure 3 Known attack source rules
Other Operations
- To modify a rule, click Modify in row containing the rule.
- To delete a rule, click Delete in the row containing the rule.