VAMI must set the encoding for all text Multipurpose Internet Mail Extensions (MIME) types to UTF-8.

An XCCDF Rule

Description

Invalid user input occurs when a user inserts data or characters into a hosted application's data entry field and the hosted application is unprepared to process that data. This results in unanticipated application behavior, potentially leading to an application compromise. Invalid user input is one of the primary methods employed when attempting to compromise an application. An attacker can also enter Unicode into hosted applications in an effort to break out of the document home or root home directory or to bypass security checks.

ID: SV-256663r888511_rule
Version: VCLD-70-000019
Severity: Medium
References: CCI-001310
Updated: about 2 months ago

Remediation Templates

Navigate to and open:

/opt/vmware/etc/lighttpd/lighttpd.conf

Navigate to the "mimetype.assign" block.
Replace all the mappings whose assigned type is "text/*" with mappings for UTF-8 encoding. For example:

  ".log"          =>      "text/plain; charset=utf-8",
  ".conf"         =>      "text/plain; charset=utf-8",
  ".text"         =>      "text/plain; charset=utf-8",
  ".txt"          =>      "text/plain; charset=utf-8",
  ".spec"         =>      "text/plain; charset=utf-8",
  ".dtd"          =>      "text/xml; charset=utf-8",
  ".xml"          =>      "text/xml; charset=utf-8",

Restart the service with the following command:

# vmon-cli --restart applmgmt

VAMI must set the encoding for all text Multipurpose Internet Mail Extensions (MIME) types to UTF-8.

Description

Remediation Templates

A Manual Procedure