Solaris 2.6 / 7 / 8 - Lock Users Out of mailx

!/bin/sh Solaris mailx1 username.lock proof of theory makes mailx not work for all users except those that can erase the lockfile even so mailx will hang for a long time. Tested on Solaris 2.6, 7, 8 by Optyx http://www.uberhax0r.net echo "mailx-lock by optyx. http://www.uberhax0r.net" for x in ca...

ipop3d.4.xx.lockfile.DoS.txt

Date: Sun, 7 Mar 1999 01:41:25 +0100 From: Michal Zalewski Lockfile vunerability in ipop3d 4.xx The problem is probably well known, but silently ignored by pine vendors. Unfortunately, it's possible to turn 'mostly harmless feature' in something nasty - following code allows various DoSes by...