ESB-2017.2115 - [Win][UNIX/Linux][FreeBSD] SaltStack: Access confidential data - Remote/unauthenticated 2017-08-23

Printable version
PGP/GPG verifiable version

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2017.2115
         salt -- Maliciously crafted minion IDs can cause unwanted
                  directory traversals on the Salt-master
                              23 August 2017

===========================================================================

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

Product:           SaltStack
Publisher:         FreeBSD
Operating System:  FreeBSD
                   UNIX variants (UNIX, Linux, OSX)
                   Windows
Impact/Access:     Access Confidential Data -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-12791  

Original Bulletin: 
   http://www.vuxml.org/freebsd/3531141d-a708-477c-954a-2a0549e49ca9.html

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

- --------------------------BEGIN INCLUDED TEXT--------------------

salt -- Maliciously crafted minion IDs can cause unwanted directory traversals
on the Salt-master

Affected packages

py27-salt < 2016.11.7

2017.7.0 <= py27-salt < 2017.7.1

py32-salt < 2016.11.7

2017.7.0 <= py32-salt < 2017.7.1

py33-salt < 2016.11.7

2017.7.0 <= py33-salt < 2017.7.1

py34-salt < 2016.11.7

2017.7.0 <= py34-salt < 2017.7.1

py35-salt < 2016.11.7

2017.7.0 <= py35-salt < 2017.7.1

py36-salt < 2016.11.7

2017.7.0 <= py36-salt < 2017.7.1

Details

VuXML ID 3531141d-a708-477c-954a-2a0549e49ca9

Discovery 2017-08-16

Entry 2017-08-22

SaltStack reports:

Correct a flaw in minion id validation which could allow certain minions to 
authenticate to a master despite not having the correct credentials. To 
exploit the vulnerability, an attacker must create a salt-minion with an ID 
containing characters that will cause a directory traversal. Credit for 
discovering the security flaw goes to: Vernhk@qq.com

References

CVE Name CVE-2017-12791

URL https://docs.saltstack.com/en/latest/topics/releases/2016.11.7.html

URL https://docs.saltstack.com/en/latest/topics/releases/2017.7.1.html

- --------------------------END INCLUDED TEXT--------------------

You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.

NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members.  As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.

NOTE: This is only the original release of the security bulletin.  It may
not be updated when updates to the original are made.  If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.

Contact information for the authors of the original document is included
in the Security Bulletin above.  If you have any questions or need further
information, please contact them directly.

Previous advisories and external security bulletins can be retrieved from:

        http://www.auscert.org.au/render.html?cid=1980

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967
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=Z/pi
-----END PGP SIGNATURE-----

« Back to bulletins