GEN008820 - The system package management tool must not automatically obtain updates.

Information

System package management tools can obtain a list of updates and patches from a package repository and make this information available to the SA for review and action. Using a package repository outside of the organization's control presents a risk of malicious packages being introduced.

Solution

Disable the yum service.
# chkconfig yum-updatesd off ; service yum-updatesd stop

See Also

http://iasecontent.disa.mil/stigs/zip/U_RedHat_5_V1R18_STIG.zip