All web server files must be verified for their integrity (e.g., checksums and hashes) before becoming part of the production web server.

Description

<VulnDiscussion>Being able to verify that a patch, upgrade, certificate, etc., being added to the web server is unchanged from the producer of the file is essential for file validation and nonrepudiation of the information. The web server or hosting system must have a mechanism to verify that files, before installation, are valid. Examples of validation methods are sha1 and md5 hashes and checksums.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>