bugtraq - remote root exec vulnerability in omail

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Message-ID: <BCBD9B08.4832%thijs@dalhuijsen.com>
Date: Tue, 04 May 2004 19:10:00 +0200
From: Thijs Dalhuijsen <thijs@...huijsen.com>
To: <omail@...il.ch>
Cc: <full-disclosure@...ts.netsys.com>, <bugtraq@...urityfocus.com>
Subject: remote root exec vulnerability in omail



product:omail webmail
version: 0.98.5
notified: now


the "patch" on omail.pl still leaves the system wide open for attack,

the regex to filter out " and ' doesn't help you much if your $SHELL is bash
or something similar

both back ticks and more arcane ways of shell expansion $(rm -rf /) are
still possible

fix it by replacing the regex around line 411 to something like


        $password = quotemeta($password);
        

Happy patching,

Thijs



--
map{map{tr|10|# |;print}split//,sprintf"%.8b\n",$_}
unpack'C*',unpack'u*',"5`#8<3'X`'#8^-@`<-CPP`#8V/C8`"


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