| name | cis-apache-9.3 |
| description | Ensure MaxKeepAliveRequests Is Set Properly |
| category | cis-apache |
| version | 3.6.0 |
| author | cyberstrike-official |
| tags | ["cis","apache","linux","dos","denial-of-service","keepalive"] |
| cis_id | 9.3 |
| cis_benchmark | CIS Apache HTTP Server 2.2 Benchmark v3.6.0 |
| tech_stack | ["linux","apache"] |
| cwe_ids | [] |
| chains_with | [] |
| prerequisites | [] |
| severity_boost | {} |
Ensure MaxKeepAliveRequests Is Set Properly
Description
The MaxKeepAliveRequests directive limits the number of requests allowed per connection when KeepAlive is on. If it is set to 0, unlimited requests will be allowed. It is recommended that the MaxKeepAliveRequests directive be set to 100 or greater.
Rationale
Limiting the number of requests per connection may improve a server's resiliency to DoS attacks.
Impact
None documented
Audit Procedure
Perform the following steps to determine if the recommended state is implemented:
Verify that the MaxKeepAliveRequests directive in the Apache configuration either has a value of 100 or more or is not present. If the directive is not present, the default value is 100.
Remediation
Perform the following to implement the recommended state:
Add or modify the MaxKeepAliveRequests directive in the Apache configuration to have a value of 100 or more.
MaxKeepAliveRequests 100
Default Value
MaxKeepAliveRequests 100
References
- https://httpd.apache.org/docs/2.2/mod/core.html#maxkeepaliverequests
CIS Controls
Version 6
9 Limitation and Control of Network Ports, Protocols, and Services
Limitation and Control of Network Ports, Protocols, and Services
Version 7
5.1 Establish Secure Configurations
Maintain documented, standard security configuration standards for all authorized
operating systems and software.
Profile
Level 1 | Scored