Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2018.3085
2018-10 Security Bulletin: NFX Series: Insecure sshd configuration in
Juniper Device Manager (JDM) and host OS (CVE-2018-0044)
11 October 2018
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: Juniper NFX Series
Publisher: Juniper Networks
Operating System: Juniper
Impact/Access: Unauthorised Access -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2018-0044
Original Bulletin:
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10878
- --------------------------BEGIN INCLUDED TEXT--------------------
2018-10 Security Bulletin: NFX Series: Insecure sshd configuration
in Juniper Device Manager (JDM) and host OS (CVE-2018-0044)
[JSA10878]
Product Affected:
This issue affects Junos OS 18.1 on NFX platforms.
Problem:
An insecure SSHD configuration in Juniper Device Manager (JDM) and
host OS on Juniper NFX Series devices may allow remote
unauthenticated access if any of the passwords on the system are
empty. The affected SSHD configuration has the
PermitEmptyPasswords option set to "yes".
Affected releases are Juniper Networks Junos OS:
o 18.1 versions prior to 18.1R4 on NFX Series.
This issue is only exploitable when there are user or system
accounts with blank or empty passwords configured on JDM or host
OS.
Juniper SIRT is not aware of any malicious exploitation of this
vulnerability.
This issue was found during internal product security testing or
research.
This issue has been assigned CVE-2018-0044.
Solution:
PermitEmptyPasswords option has been set to no by default in the
fixed versions of Junos OS.
The following software releases have been updated to resolve this
specific issue: 18.1R4, 18.2R1 and all subsequent releases.
This issue is being tracked as PR 1344176 which is visible on the
Customer Support website.
Note: Juniper SIRT's policy is not to evaluate releases which are
beyond End of Engineering (EOE) or End of Life (EOL).
Workaround:
Ensure all the accounts on the JDM and host OS are configured with
a password.
Ensure that /etc/ssh/sshd_config file on JDM and host OS have the
configuration
PermitEmptyPasswords no
Implementation:
Software Releases, patches and updates are available at
https://www.juniper.net/support/downloads/.
Modification History:
2018-10-10: Initial publication
Related Links:
o KB16613: Overview of the Juniper Networks SIRT Monthly
Security Bulletin Publication Process
o KB16765: In which releases are vulnerabilities fixed?
o KB16446: Common Vulnerability Scoring System (CVSS) and
Juniper's Security Advisories
o Report a Vulnerability - How to Contact the Juniper Networks
Security Incident Response Team
CVSS Score:
9.8 (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
Risk Level:
Critical
Risk Assessment:
Information for how Juniper Networks uses CVSS can be found at KB
16446 "Common Vulnerability Scoring System (CVSS) and Juniper's
Security Advisories."
- --------------------------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:
https://www.auscert.org.au/bulletins/
===========================================================================
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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=Usg0
-----END PGP SIGNATURE-----