cyberstrikeus Ensure the LimitRequestBody Directive is Set to 102400 or Less
Description
The LimitRequestBody directive limits the number of bytes that are allowed in a request body. Size of requests may vary greatly; for example, during a file upload the size of the file must fit within this limit.
Rationale
The limiting of the size of the request body is helpful so that the web server can prevent an unexpectedly long or large request from being passed to a potentially vulnerable program. Of course, the underlying dependency is that we need to set the limits high enough to not interfere with any one application on the server, while setting them low enough to be of value in protecting the applications. The LimitRequestBody may be configured on a per directory, or per location context. Please read the Apache documentation carefully, as these requests may interfere with the expected functionality of some web applications.
Impact
None documented
Audit Procedure
Perform the following steps to determine if the recommended state is implemented:
Verify that the LimitRequestBody directive in the Apache configuration has a value of 102400 (100K) or less.
Remediation
Perform the following to implement the recommended state:
Add or modify the LimitRequestBody directive in the Apache configuration to have a value of 102400 (100K) or less. Please read the Apache documentation so it is understood this directive will limit the size of file uploads to the web server.
LimitRequestBody 102400
Default Value
LimitRequestBody 0 (unlimited)
References
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 2 | Scored