rssh 2.2.2 and earlier does not properly restrict programs that can be run, which could allow remote authenticated users to bypass intended access restrictions and execute arbitrary programs via (1) rdist -P, (2) rsync, or (3) scp -S.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2004-1159
http://www.securityfocus.com/bid/11792
http://www.gentoo.org/security/en/glsa/glsa-200412-01.xml