scponly 4.6 and earlier allows remote authenticated users to bypass intended restrictions and execute code by invoking dangerous subcommands including (1) unison, (2) rsync, (3) svn, and (4) svnserve, as originally demonstrated by creating a Subversi

scponly 4.6 and earlier allows remote authenticated users to bypass intended restrictions and execute arbitrary code by invoking scp, as implemented by OpenSSH, with the -F and -o options.