OpenForum RSS: �� GNU Screen 4.5.0

�� GNU Screen 4.5.0 (SysA)

Wed, 01 Feb 2017 08:25:08 GMT

> $ rpm -q screen
> screen-4.0.3-alt12.x86_64

Gentoo:

[I] app-misc/screen
Available versions: 4.3.1-r1 4.4.0 ~4.5.0-r1 **9999^t {debug multiuser nethack pam selinux utmp}
Installed versions: 4.4.0(10:58:59 19/01/17)(pam -debug -multiuser -nethack -selinux)
Homepage: https://www.gnu.org/software/screen/
Description: screen manager with VT100/ANSI terminal emulation

�.�. 4.5 ��, �� - ��! :)

�� GNU Screen 4.5.0 (��)

Tue, 31 Jan 2017 16:21:05 GMT

> �� tmux vs screen �� , ��, vim vs. emacs?

��, �� vim vs. emacs �� , � ��, �� emacs ��!

�� GNU Screen 4.5.0 (Sluggard)

Tue, 31 Jan 2017 10:06:14 GMT

> $ rpm -q screen
> screen-4.0.3-alt12.x86_64

�ӣ �� :

$ rpm -q screen
�� screen ��

�� GNU Screen 4.5.0 (��)

Tue, 31 Jan 2017 09:45:20 GMT

� �� suid:

make.conf:
FEATURES="... suidctl ..."

suidctl.conf:
/bin/mount
/bin/passwd
/bin/su
/bin/umount

�� ݣ �� :

mount -o remount,nosuid /...

�� GNU Screen 4.5.0 (��)

Tue, 31 Jan 2017 09:34:49 GMT

�� , � �� . � �� .

�� GNU Screen 4.5.0 (��)

Tue, 31 Jan 2017 07:45:52 GMT

��, �� - HolyScreen.

�� GNU Screen 4.5.0 (Andrey Mitrofanov)

Tue, 31 Jan 2017 06:40:46 GMT

> $ rpm -q screen
> screen-4.0.3-alt12.x86_64

$ ls -l /usr/bin/screen
-rwxr-sr-x 1 root utmp 410688 �� 3 2015 /usr/bin/screen
$ screen --version
Screen version 4.01.00devel (GNU) 2-May-06

��, �� -- �� suid root-�� ?

+
Solar Designer http://www.openwall.com/lists/oss-security/2017/01/25/1 =>

[I]"Last but not least, I hope distros don't install screen SUID root these
days. If any distro does, this is yet another reminder to reconsider.

Some install it SGID utmp. Some take it a step further - Owl and ALT
Linux install it SGID to group screen, which only grants the ability to
invoke utempter (SGID utmp) and tcp_chkpwd (SGID shadow). Thus, it'd
take a vulnerability in those other tools to make much use of a screen
vulnerability. Here's an excerpt from ALT Linux's spec file:"[/I]

|
"� �� GNU screen suid-root-��." �� : ��, �� , � �� suid-root-�� (� �

�� GNU Screen 4.5.0 (A.Stahl)

Tue, 31 Jan 2017 05:58:00 GMT

�� tmux vs screen �� , ��, vim vs. emacs?

�� GNU Screen 4.5.0 (��)

Tue, 31 Jan 2017 05:35:47 GMT

� �� .

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���������� � GNU Screen 4.5.0 (������)

���������� � GNU Screen 4.5.0 (������)

���������� � GNU Screen 4.5.0 (������)

���������� � GNU Screen 4.5.0 (Andrey Mitrofanov)

���������� � GNU Screen 4.5.0 (A.Stahl)

���������� � GNU Screen 4.5.0 (������)

OpenForum RSS: �� GNU Screen 4.5.0

�� GNU Screen 4.5.0 (SysA)

�� GNU Screen 4.5.0 (��)

�� GNU Screen 4.5.0 (Sluggard)

�� GNU Screen 4.5.0 (��)

�� GNU Screen 4.5.0 (��)

�� GNU Screen 4.5.0 (��)

�� GNU Screen 4.5.0 (Andrey Mitrofanov)

�� GNU Screen 4.5.0 (A.Stahl)

�� GNU Screen 4.5.0 (��)