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Date: Thu, 18 May 2006 02:07:25 +0400
From: "Dmitry V. Levin" <ldv@altlinux.org>
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Subject: Re: [sisyphus] temporary root privileges from local process
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On Wed, May 17, 2006 at 08:52:50PM +0300, Vadym Kononenko wrote:
> =F7=CF=DA=CD=CF=D6=CE=CF, =CE=C5=CD=CE=CF=C7=CF =CF=C6=C6=D4=CF=D0=C9=CB,=
 =D4=C1=CB-=DE=D4=CF =DA=C1=D2=C1=CE=C5=C5 =C9=DA=D7=C9=CE=D1=C0=D3=D8.
>=20
> =E5=D3=D4=D8 =D0=D2=CF=C3=C5=D3=D3,

=EE=C5=D0=D2=C9=D7=C9=CC=C5=C7=C9=D2=CF=D7=C1=CE=CE=D9=CA?

> =CB=CF=D4=CF=D2=CF=CD=D5 =CE=C1=C4=CF =C9=CE=CF=C7=C4=C1 =D2=C5=D3=D4=C1=
=D2=D4=CF=D7=C1=D4=D8 =CE=C5=CB=D5=C0 =D3=CC=D5=D6=C2=D5, =DE=D4=CF =C5=D3=
=D4=C5=D3=D4=D7=C5=CE=CE=CF=20
> =CD=CF=D6=CE=CF =D3=C4=C5=CC=C1=D4=D8 =D4=CF=CC=D8=CB=CF =C9=CD=C5=D1 =D0=
=D2=C9=D7=C9=CC=C5=C7=C9=C9 =D3=D5=D0=C5=D2=D0=CF=CC=D8=DA=CF=D7=C1=D4=C5=
=CC=D1, =D0=D2=C5=C4=D7=C1=D2=C9=D4=C5=CC=D8=CE=CF=20
> =D0=CF=D0=D2=C1=D7=C9=D7 =C5=C5 =CB=CF=CE=C6=C9=C7=D5=D2=C1=C3=C9=CF=CE=
=CE=D9=CA =C6=C1=CA=CC.

=E5=D3=CC=C9 =CE=C5=D0=D2=C9=D7=C9=CC=C5=C7=C9=D2=CF=D7=C1=CE=CE=D9=CA =D0=
=D2=CF=C3=C5=D3=D3 =D0=D2=C1=D7=C9=D4 =CB=CF=CE=C6=C9=C7=D5=D2=C1=C3=C9=CF=
=CE=CE=D9=CA =C6=C1=CA=CC
=D0=D2=C9=D7=C9=CC=C5=C7=C9=D2=CF=D7=C1=CE=CE=CF=C7=CF =D0=D2=CF=C3=C5=D3=
=D3=C1, =D4=CF =DC=D4=CF=D4 =D0=C5=D2=D7=D9=CA =D0=D2=CF=C3=C5=D3=D3 =CD=CF=
=D6=CE=CF =D3=CD=C5=CC=CF =D0=D2=C9=DE=C9=D3=CC=C9=D4=D8
=CB =D0=D2=C9=D7=C9=CC=C5=C7=C9=D2=CF=D7=C1=CE=CE=D9=CD. :)

> =F3 =D0=D2=C1=D7=CB=CF=CA =C6=C1=CA=CC=C1 =C4=C5=CC=C1=C5=CD =D0=D2=CF=D3=
=D4=CF -=20
> =DE=C5=D2=C5=DA "control" =D7=C5=DB=C1=C5=CD =CE=C1 =CE=C5=C7=CF =CE=D5=
=D6=CE=D9=C5 =D0=D2=C1=D7=C1 =C4=CF=D3=D4=D5=D0=C1. =EE=CF =D7=CF=D4 =CB=C1=
=CB =C2=D9=D4=D8 =D3=20
> =D2=C5=D3=D4=C1=D2=D4=CF=CD =D3=CC=D5=D6=C2=D9?
> 1. =FE=C5=D2=C5=DA =D4=CF=D4-=D6=C5 control =D7=D9=D3=D4=C1=D7=CC=D1=D4=
=D8 =CE=D5=D6=CE=D9=C5 =D0=D2=C1=D7=C1 =C4=CF=D3=D4=D5=D0=C1 + SUID =C6=CC=
=C1=C7 =CE=C1=20
> =C2=C9=CE=C1=D2=CE=C9=CB, =D3=CF=DA=C4=C1=CE=CE=D9=CA =D3=D0=C5=C3=C9=C1=
=CC=D8=CE=CF =C4=CC=D1 =DC=D4=C9=C8 =C3=C5=CC=C5=CA.

=F0=C9=D3=C1=D4=D8 =D0=D2=C9=D7=C9=CC=C5=CE=C9=D2=CF=D7=C1=CE=CE=D9=C5 =D3=
=D0=C5=C3=C9=C1=CC=C9=DA=C9=D2=CF=D7=C1=CE=CE=D9=C5 =D0=D2=CF=C7=D2=C1=CD=
=CD=D9 =D4=CF=D6=C5 =CE=C1=C4=CF =D5=CD=C5=D4=D8.

> 2. =F0=D2=CF=C3=C5=D3=D3 =D7=D9=DA=D9=D7=C1=C5=D4 =D5=D4=C9=CC=C9=D4=D5 "=
sudo", =D0=D2=C5=C4=D7=C1=D2=C9=D4=C5=CC=D8=CE=CF =D3=CB=CF=CE=C6=C9=C7=D5=
=D2=C9=D2=CF=D7=C1=CE=CE=D5=C0 =CE=C1=20
> =D2=C1=DA=D2=C5=DB=C5=CE=C9=C5 =DC=D4=CF=CA =CF=D0=C5=D2=C1=C3=C9=C9 =C4=
=C1=CE=CE=CF=CD=D5 =D0=CF=CC=D8=DA=CF=D7=C1=D4=C5=CC=C0.

=E5=D3=CC=C9 =D7=C1=CD =CE=D5=D6=CE=CF =CF=C4=CE=CF=D2=C1=DA=CF=D7=CF=C5 =
=D2=C5=DB=C5=CE=C9=C5 =CE=C1 =D3=CB=CF=D2=D5=C0 =D2=D5=CB=D5, =D4=C1=CB =CD=
=CF=D6=CE=CF =D3=C4=C5=CC=C1=D4=D8.

> =F0=CF=C4=D3=CB=C1=D6=C9=D4=C5 =D0=CF=D6=C1=CC=D5=CA=D3=D4=C1 =D0=D2=C1=
=D7=C9=CC=D8=CE=CF=C5 =D2=C5=DB=C5=CE=C9=C5.

=EC=D5=DE=DB=C5, =C5=D3=CC=C9 =CE=C5=CB=C1=D1 =D3=CC=D5=D6=C2=C1 =C2=D5=C4=
=C5=D4 =D3=C1=CD=C1 =D0=D2=C9=CE=C9=CD=C1=D4=D8 =DA=C1=D0=D2=CF=D3=D9 =CE=C1
=D0=C5=D2=C5=CB=CF=CE=C6=C9=C7=D5=D2=C9=D2=CF=D7=C1=CE=C9=C5 =C9 =D0=C5=D2=
=C5=DA=C1=D0=D5=D3=CB =D3=CF =D3=D4=CF=D2=CF=CE=D9 =CE=C5=D0=D2=C9=D7=C9=CC=
=C5=C7=C9=D2=CF=D7=C1=CE=CE=D9=C8 =CB=CC=C9=C5=CE=D4=CF=D7,
=CE=C1=D0=D2=C9=CD=C5=D2, =DE=C5=D2=C5=DA unix domain socket.


--=20
ldv

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