ESB-2019.0306 - [Linux][Debian] rssh: Execute arbitrary code/commands - Existing account 2019-02-04

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.0306
                           rssh security update
                              4 February 2019

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           rssh
Publisher:         Debian
Operating System:  Debian GNU/Linux 9
                   Linux variants
Impact/Access:     Execute Arbitrary Code/Commands -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-3464 CVE-2019-3463 

Original Bulletin: 
   http://www.debian.org/security/2019/dsa-4382

Comment: This advisory references vulnerabilities in products which run on 
         platforms other than Debian. It is recommended that administrators 
         running rssh check for an updated version of the software for their
         operating system.

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Debian Security Advisory DSA-4382-1                   security@debian.org
https://www.debian.org/security/                       Moritz Muehlenhoff
February 02, 2019                     https://www.debian.org/security/faq
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Package        : rssh
CVE ID         : CVE-2019-3463 CVE-2019-3464

Nick Cleaton discovered two vulnerabilities in rssh, a restricted shell
that allows users to perform only scp, sftp, cvs, svnserve (Subversion),
rdist and/or rsync operations. Missing validation in the rsync support
could result in the bypass of this restriction, allowing the execution
of arbitrary shell commands.

For the stable distribution (stretch), these problems have been fixed in
version 2.3.4-5+deb9u2.

We recommend that you upgrade your rssh packages.

For the detailed security status of rssh please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/rssh

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org

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