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Date:      Sat, 08 Jun 1996 08:04:43 -0700
From:      Paul Traina <pst@shockwave.com>
To:        =?KOI8-R?Q?=E1=CE=C4=D2=C5=CA_=FE=C5=D2=CE=CF=D7?= (aka Andrey A. Chernov, Black Mage) <ache@astral.msk.su>
Cc:        pantzer@ludd.luth.se (Mattias Pantzare), security@FreeBSD.org
Subject:   Re: FreeBSD's /var/mail permissions 
Message-ID:  <199606081504.IAA05536@precipice.shockwave.com>
In-Reply-To: Your message of "Sat, 08 Jun 1996 11:32:35 %2B0400." <199606080732.LAA00950@astral.msk.su> 

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But bad guy can't, because /var/mail is 755

  From: =?KOI8-R?Q?=E1=CE=C4=D2=C5=CA_=FE=C5=D2=CE=CF=D7?= (aka Andrey A. Chern
>>ov, Black Mage) <ache@astral.msk.su>
  Subject: Re: FreeBSD's /var/mail permissions
  > > I'm confused, why do you say adduser must create new user mailbox?
  > > Mail.local is already suid root and adduser should deliver a preformatted
  > > mail message with mail.local.
  > 
  > Why should adduser send any mail to anybody? Rather silly if you ask me.
  
  Because bad guy can pre-create upcoming user mailbox with 666 permissions.
  
  -- 
  Andrey A. Chernov        : And I rest so composedly,  /Now, in my bed,
  ache@astral.msk.su       : That any beholder  /Might fancy me dead -
  http://dt.demos.su/~ache : Might start at beholding me,  /Thinking me dead.
  RELCOM Team,FreeBSD Team :         E.A.Poe         From "For Annie" 1849



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