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Groups > linux.debian.security > #5543

Re: rssh security update breaks rsync via Synology's "hyper backup"

From Chris Lamb <lamby@debian.org>
Newsgroups linux.debian.security
Subject Re: rssh security update breaks rsync via Synology's "hyper backup"
Date 2019-02-14 18:50 +0100
Message-ID <xrtj3-18R-7@gated-at.bofh.it> (permalink)
References <xrsQ2-YV-5@gated-at.bofh.it> <xrt9o-15l-25@gated-at.bofh.it>
Organization linux.* mail to news gateway

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[debian-security@lists.debian.org → Bcc]

Holger Levsen wrote:

> > I applied recent rssh security updates to Debian 8 (jessie) and I
> > noticed that it breaks Synology's "Hyper backup" tool (with rsync method).
> > 
> > Feb 10 03:28:21 roman rssh[19985]: cmd 'rsync' approved
> > Feb 10 03:28:21 roman rssh[19985]: insecure rsync options in rsync
> > command line!
> > Feb 10 03:28:21 roman rssh[19985]: user synology attempted to execute
> > forbidden commands
> > Feb 10 03:28:21 roman rssh[19985]: command: rsync --server --daemon .
> > 
> > Is it really unsafe to issue a "rsync --server --daemon ." command so it
> > deserves to be blocked?`

FYI this is the patch in question:

https://sources.debian.org/src/rssh/2.3.4-11/debian/patches/0007-Verify-rsync-command-options.patch/#L15-L20


Regards,

-- 
      ,''`.
     : :'  :     Chris Lamb
     `. `'`      lamby@debian.org 🍥 chris-lamb.co.uk
       `-

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Thread

rssh security update breaks rsync via Synology's "hyper backup" Roman Medina-Heigl Hernandez <roman@rs-labs.com> - 2019-02-14 18:20 +0100
  Re: rssh security update breaks rsync via Synology's "hyper backup" Holger Levsen <holger@layer-acht.org> - 2019-02-14 18:40 +0100
    Re: rssh security update breaks rsync via Synology's "hyper backup" Chris Lamb <lamby@debian.org> - 2019-02-14 18:50 +0100
      Re: rssh security update breaks rsync via Synology's "hyper backup" Roman Medina-Heigl Hernandez <roman@rs-labs.com> - 2019-02-14 19:00 +0100
        Re: rssh security update breaks rsync via Synology's "hyper backup" Russ Allbery <rra@debian.org> - 2019-02-14 19:10 +0100
          Re: rssh security update breaks rsync via Synology's "hyper backup" Antoine Beaupré <anarcat@orangeseeds.org> - 2019-02-14 19:50 +0100
            Re: rssh security update breaks rsync via Synology's "hyper backup" Russ Allbery <rra@debian.org> - 2019-02-18 18:30 +0100
              Re: rssh security update breaks rsync via Synology's "hyper backup" Roman Medina-Heigl Hernandez <roman@rs-labs.com> - 2019-02-18 19:40 +0100
                Re: rssh security update breaks rsync via Synology's "hyper backup" Russ Allbery <rra@debian.org> - 2019-02-19 04:20 +0100
                Re: rssh security update breaks rsync via Synology's "hyper backup" Roman Medina-Heigl Hernandez <roman@rs-labs.com> - 2019-02-19 16:10 +0100
                Re: rssh security update breaks rsync via Synology's "hyper backup" Russ Allbery <rra@debian.org> - 2019-02-19 17:50 +0100
                Re: rssh security update breaks rsync via Synology's "hyper backup" Roman Medina-Heigl Hernandez <roman@rs-labs.com> - 2019-02-20 19:20 +0100
              Re: rssh security update breaks rsync via Synology's "hyper backup" Antoine Beaupré <anarcat@orangeseeds.org> - 2019-02-18 22:10 +0100
                Re: rssh security update breaks rsync via Synology's "hyper backup" Chris Lamb <lamby@debian.org> - 2019-02-18 22:30 +0100
              Re: rssh security update breaks rsync via Synology's "hyper backup" Russ Allbery <eagle@eyrie.org> - 2019-02-19 06:00 +0100
                Re: rssh security update breaks rsync via Synology's "hyper backup" Chris Lamb <lamby@debian.org> - 2019-02-19 09:20 +0100

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