Re: /bin/mail & glibc

[Mark <mark () vulndev org>]

Sorry I am immensely bored today so actually reading email!


its actually a problem with /bin/mail and how it handles the CC field.

/bin/mail -s Test -c `perl -e 'print "A" 8224'` root@localhost

segfaults and overwrites eip at 8224 characters (segfaults without eip
at 8220)


dont have to be using zsh to create this problem.


there isnt really alot of worry unless /bin/mail was setuid/setgid...

easy to spawn a shell.. I've put a messy perl exploit together
(www.vulndev.org) run it, insert your '.' and <CR> and you should get a
shell.

-- 
                         Mark
                   www.vulndev.org
        'If ignorant both of the enemy and yourself,
        you are certain in every battle to be in peril'
   If you know yourself, knowing the enemy does not matter.
                -- Sun Tzu - The Art of War
                        (Adapted)

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