The remote host is missing an update to the system as announced in the referenced advisory.

Update your system with the appropriate patches or software upgrades. http://www.squid-cache.org/Versions/v2/2.5/bugs/#squid-2.5.STABLE9-cachemgr_conf http://www.squid-cache.org/bugs/show_bug.cgi?id=1094 http://www.vuxml.org/freebsd/a395397c-c7c8-11d9-9e1e-c296ac722cb3.html

The following package is affected: squid CVE-1999-0710 The RedHat squid program installs cachemgr.cgi in a public web directory, allowing remote attackers to use it as an intermediary to connect to other systems.