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.STABLE7-ldap_spaces http://www.squid-cache.org/bugs/show_bug.cgi?id=1187 http://www.vuxml.org/freebsd/7a921e9e-68b1-11d9-9e1e-c296ac722cb3.html

The following package is affected: squid CVE-2005-0173 squid_ldap_auth in Squid 2.5 and earlier allows remote authenticated users to bypass username-based Access Control Lists (ACLs) via a username with a space at the beginning or end, which is ignored by the LDAP server.