WA000-WWA024 A22 - The KeepAliveTimeout directive must be defined.

Information

The number of seconds Apache will wait for a subsequent request before closing the connection. Once a request has been received, the timeout value specified by the Timeout directive applies. Setting KeepAliveTimeout to a high value may cause performance problems in heavily loaded servers. The higher the timeout, the more server processes will be kept occupied waiting on connections with idle clients. These requirements are set to mitigate the effects of several types of denial of service attacks.

Solution

Edit the httpd.conf file and set the value of 'KeepAliveTimeout' to the value of 15 or less.

See Also

https://iasecontent.disa.mil/stigs/zip/U_Apache_2-2_UNIX_V1R11_STIG.zip

Item Details

Category: ACCESS CONTROL

References: 800-53|AC-12, CAT|II, Rule-ID|SV-32877r1_rule, STIG-ID|WA000-WWA024_A22, Vuln-ID|V-13726

Plugin: Unix

Control ID: ec008177b0542a811f6fa47952d994b026cf30781beccc760ebffe02c3b02d4d