Bug#314347: marked as done (openssh-client: "Bad owner or permissions on $HOME/.ssh/config" check too aggressive)
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and subject line Bug#314347: fixed in openssh 1:4.1p1-5
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From: Branden Robinson <branden@debian.org>
To: Debian Bug Tracking System <submit@bugs.debian.org>
Subject: openssh-client: "Bad owner or permissions on $HOME/.ssh/config" check too
aggressive
X-Mailer: reportbug 3.12
Date: Wed, 15 Jun 2005 15:59:38 -0500
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Package: openssh-client
Version: 1:4.1p1-3
Severity: important
Setting severity to important because this unexpectedly busted Subversion,
though I don't honestly believe it's a *critical* bug.
I just upgraded from sid as of about the time sarge released, and got a blitz
of new packages, including the new openssh-client package.
Here's a session transcript:
1148 {0} branden@sisyphus:~/packages/xorg-x11/svn/trunk/debian$ svn up
Bad owner or permissions on /home/branden/.ssh/config
svn: Connection closed unexpectedly
1149 {1} branden@sisyphus:~/packages/xorg-x11/svn/trunk/debian$ l -l $HOME/.ssh/config
-rw-rw-r-- 1 branden branden 125 Jun 26 2004 /home/branden/.ssh/config
1150 {0} branden@sisyphus:~/packages/xorg-x11/svn/trunk/debian$ chmod 644 /home/branden/.ssh/config
1151 {0} branden@sisyphus:~/packages/xorg-x11/svn/trunk/debian$ svn up
At revision 220.
I think that check is excessively paranoid. I can think of a few
possibilities for resolving this bug:
1) Have the ssh client check to see if usergroups are configured in
adduser. Perhaps not a great solution because 1) it's complicated, and
2) this doesn't tell you anything about whether a particular user's
account was created with this property or not.
2) Simply tolerate group-writable files if the group name in question is
identical to the user name.
3) Alternatively or additionally to 2), ensure that the user is the only
member of the group owning the group-writable file.
4) Step this fatal error down to a warning. (I'd find it annoying,
though.)
5) As part of the many migrations done to the new openssh world order, walk
/home and chmod g-w on all .ssh/config files. Some people might
consider this intrusive, though, and it doesn't prevent the creation of
new accounts with this problem.
6) Tell everybody in my position "tough cookie" and add a NEWS item
advising people that the default umask with usergroups enabled in
adduser is just bad news for .ssh/config.
In any case:
7) It would be nice if the ssh client would identify itself before spewing
that message; e.g.:
ssh: bad owner or permissions on /home/branden/.ssh/config
-- System Information:
Debian Release: testing/unstable
APT prefers unstable
APT policy: (500, 'unstable')
Architecture: powerpc (ppc)
Shell: /bin/sh linked to /bin/bash
Kernel: Linux 2.6.9-powerpc-smp
Locale: LANG=C, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Versions of packages openssh-client depends on:
ii adduser 3.63 Add and remove users and groups
ii debconf [debconf-2.0] 1.4.51 Debian configuration management sy
ii dpkg 1.13.9 Package maintenance system for Deb
ii libc6 2.3.2.ds1-22 GNU C Library: Shared libraries an
ii libedit2 2.9.cvs.20050518-2 BSD editline and history libraries
ii libncurses5 5.4-6 Shared libraries for terminal hand
ii libssl0.9.7 0.9.7g-1 SSL shared libraries
ii zlib1g 1:1.2.2-4 compression library - runtime
-- no debconf information
---------------------------------------
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>From katie@ftp-master.debian.org Sun Jul 03 09:51:45 2005
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From: Colin Watson <cjwatson@debian.org>
To: 314347-close@bugs.debian.org
X-Katie: $Revision: 1.56 $
Subject: Bug#314347: fixed in openssh 1:4.1p1-5
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Sender: Archive Administrator <katie@ftp-master.debian.org>
Date: Sun, 03 Jul 2005 12:47:09 -0400
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Source: openssh
Source-Version: 1:4.1p1-5
We believe that the bug you reported is fixed in the latest version of
openssh, which is due to be installed in the Debian FTP archive:
openssh-client-udeb_4.1p1-5_powerpc.udeb
to pool/main/o/openssh/openssh-client-udeb_4.1p1-5_powerpc.udeb
openssh-client_4.1p1-5_powerpc.deb
to pool/main/o/openssh/openssh-client_4.1p1-5_powerpc.deb
openssh-server-udeb_4.1p1-5_powerpc.udeb
to pool/main/o/openssh/openssh-server-udeb_4.1p1-5_powerpc.udeb
openssh-server_4.1p1-5_powerpc.deb
to pool/main/o/openssh/openssh-server_4.1p1-5_powerpc.deb
openssh_4.1p1-5.diff.gz
to pool/main/o/openssh/openssh_4.1p1-5.diff.gz
openssh_4.1p1-5.dsc
to pool/main/o/openssh/openssh_4.1p1-5.dsc
ssh-askpass-gnome_4.1p1-5_powerpc.deb
to pool/main/o/openssh/ssh-askpass-gnome_4.1p1-5_powerpc.deb
ssh_4.1p1-5_all.deb
to pool/main/o/openssh/ssh_4.1p1-5_all.deb
A summary of the changes between this version and the previous one is
attached.
Thank you for reporting the bug, which will now be closed. If you
have further comments please address them to 314347@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
Colin Watson <cjwatson@debian.org> (supplier of updated openssh package)
(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@debian.org)
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Format: 1.7
Date: Sun, 3 Jul 2005 17:08:08 +0100
Source: openssh
Binary: ssh-askpass-gnome openssh-client-udeb ssh openssh-server openssh-client openssh-server-udeb
Architecture: source powerpc all
Version: 1:4.1p1-5
Distribution: unstable
Urgency: low
Maintainer: Matthew Vernon <matthew@debian.org>
Changed-By: Colin Watson <cjwatson@debian.org>
Description:
openssh-client - Secure shell client, an rlogin/rsh/rcp replacement
openssh-client-udeb - Secure shell client for the Debian installer (udeb)
openssh-server - Secure shell server, an rshd replacement
openssh-server-udeb - Secure shell server for the Debian installer (udeb)
ssh - Secure shell client and server (transitional package)
ssh-askpass-gnome - under X, asks user for a passphrase for ssh-add
Closes: 284874 314347 314625 314745 314956 315477 316636
Changes:
openssh (1:4.1p1-5) unstable; urgency=low
.
* Build-depend on libselinux1-dev on ppc64 too (closes: #314625).
* Drop priority of ssh to extra to match the override file.
* Make /usr/share/doc/openssh-server and /usr/share/doc/ssh symlinks to
/usr/share/doc/openssh-client (closes: #314745).
* Ship README.dns (closes: #284874).
* Disable btmp logging, since Debian's /var/log/btmp has inappropriate
permissions (closes: #314956).
* Allow ~/.ssh/config to be group-writable, provided that the group in
question contains only the file's owner (closes: #314347).
* debconf template translations:
- Update Brazilian Portuguese (thanks, André LuÃs Lopes;
closes: #315477).
- Add Vietnamese (thanks, Clytie Siddall; closes: #316636).
Files:
890cf12e80e2572c25119085403dd694 953 net standard openssh_4.1p1-5.dsc
ef1be2198f448bf1254f72bbd03baff1 152888 net standard openssh_4.1p1-5.diff.gz
1e36c40151eb227f8ae7129f030e0136 1048 net extra ssh_4.1p1-5_all.deb
d09bc0385dad0a4be2be29e6e9d40f5d 572900 net standard openssh-client_4.1p1-5_powerpc.deb
eb66a77886630060f67a6df360c269d6 216484 net optional openssh-server_4.1p1-5_powerpc.deb
e68816101602a5e16442742488677760 77486 gnome optional ssh-askpass-gnome_4.1p1-5_powerpc.deb
7cef5ffcba8acc3ba48ee6c2eea93b40 163182 debian-installer optional openssh-client-udeb_4.1p1-5_powerpc.udeb
eadd7a3ca18e884e6101857eebfb2df3 171986 debian-installer optional openssh-server-udeb_4.1p1-5_powerpc.udeb
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