Rule ID
SV-256717r888742_rule
Version
V1R2
CCIs
CCI-000381
MIME mappings tell the Lookup Service what type of program various file types and extensions are and what external utilities or programs are needed to execute the file type. By ensuring that various shell script MIME types are not included in "web.xml", the server is protected against malicious users tricking the server into executing shell command files.
At the command prompt, run the following command: # grep -En '(x-csh<)|(x-sh<)|(x-shar<)|(x-ksh<)' /usr/lib/vmware-lookupsvc/conf/web.xml If the command produces any output, this is a finding.
Navigate to and open:
/usr/lib/vmware-lookupsvc/conf/web.xml
Remove all of the following nodes lines:
<mime-type>application/x-csh</mime-type>
<mime-type>application/x-shar</mime-type>
<mime-type>application/x-sh</mime-type>
<mime-type>application/x-ksh</mime-type>
Restart the service with the following command:
# vmon-cli --restart lookupsvc
Note: Delete the entire mime-mapping node for the target mime-type.
Example:
<mime-mapping>
<extension>sh</extension>
<mime-type>application/x-sh</mime-type>
</mime-mapping>