AnonymousFox

//etc/ImageMagick/policy.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE policymap [
<!ELEMENT policymap (policy)+>
<!ELEMENT policy (#PCDATA)>
<!ATTLIST policy domain (delegate|coder|filter|path|resource) #IMPLIED>
<!ATTLIST policy name CDATA #IMPLIED>
<!ATTLIST policy rights CDATA #IMPLIED>
<!ATTLIST policy pattern CDATA #IMPLIED>
<!ATTLIST policy value CDATA #IMPLIED>
]>
<!--
  Configure ImageMagick policies.

Domains include system, delegate, coder, filter, path, or resource.

Rights include none, read, write, and execute.  Use | to combine them,
  for example: "read | write" to permit read from, or write to, a path.

Use a glob expression as a pattern.

Suppose we do not want users to process MPEG video images:

Here we do not want users reading images from HTTP:

Lets prevent users from executing any image filters:

The /repository file system is restricted to read only.  We use a glob
  expression to match all paths that start with /repository:
  
    <policy domain="path" rights="read" pattern="/repository/*" />

Let's prevent possible exploits by removing the right to use indirect reads.
 
    <policy domain="path" rights="none" pattern="@*" />
 
  Any large image is cached to disk rather than memory:

Note, resource policies are maximums for each instance of ImageMagick (e.g.
  policy memory limit 1GB, -limit 2GB exceeds policy maximum so memory limit
  is 1GB).
-->
<policymap>
  
  
  
  
  
  
  
  
  
  
  <policy domain="coder" rights="none" pattern="EPHEMERAL" />
  <policy domain="coder" rights="none" pattern="HTTPS" />
  <policy domain="coder" rights="none" pattern="HTTP" />
  <policy domain="coder" rights="none" pattern="URL" />
  <policy domain="coder" rights="none" pattern="FTP" />
  <policy domain="coder" rights="none" pattern="MVG" />
  <policy domain="coder" rights="none" pattern="MSL" />
  <policy domain="coder" rights="none" pattern="TEXT" />
  <policy domain="coder" rights="none" pattern="LABEL" />
  <policy domain="path" rights="none" pattern="@*" />
</policymap>