Hash: SHA256

             AUSCERT External Security Bulletin Redistribution

          JSA10961 - 2019-10 Security Bulletin: Junos OS: Session
              fixation vulnerability in J-Web (CVE-2019-0062)
                              10 October 2019


        AusCERT Security Bulletin Summary

Product:           Junos OS
Publisher:         Juniper Networks
Operating System:  Juniper
Impact/Access:     Administrator Compromise -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-0062  

Original Bulletin: 

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

2019-10 Security Bulletin: Junos OS: Session fixation vulnerability in J-Web (CVE-2019-0062)

Article ID:   JSA10961

Last Updated: 09 Oct 2019

Version:      3.0

Product Affected:
This issue affects Junos OS 12.3, 12.3X48, 14.1X53, 15.1, 15.1X49, 15.1X53,
16.1, 16.2, 17.1, 17.2, 17.3, 17.4, 18.1, 18.2, 18.3, 18.4, 19.1.

A session fixation vulnerability in J-Web on Junos OS may allow an attacker to
use social engineering techniques to fix and hijack a J-Web administrators web
session and potentially gain administrative access to the device.

This issue affects:

Juniper Networks Junos OS

12.3 versions prior to 12.3R12-S15 on EX Series;

12.3X48 versions prior to 12.3X48-D85 on SRX Series;

14.1X53 versions prior to 14.1X53-D51;

15.1 versions prior to 15.1F6-S13, 15.1R7-S5;

15.1X49 versions prior to 15.1X49-D180 on SRX Series;

15.1X53 versions prior to 15.1X53-D238;

16.1 versions prior to 16.1R4-S13, 16.1R7-S5;

16.2 versions prior to 16.2R2-S10;

17.1 versions prior to 17.1R3-S1;

17.2 versions prior to 17.2R2-S8, 17.2R3-S3;

17.3 versions prior to 17.3R3-S5;

17.4 versions prior to 17.4R2-S8, 17.4R3;

18.1 versions prior to 18.1R3-S8;

18.2 versions prior to 18.2R3;

18.3 versions prior to 18.3R3;

18.4 versions prior to 18.4R2;

19.1 versions prior to 19.1R1-S2, 19.1R2.

This issue requires J-Web to be enabled on the device.

The examples of the config stanza affected by this issue:

system services web-management http
system services web-management https

Juniper SIRT is not aware of any malicious exploitation of this vulnerability.

This issue was discovered during an external security research.

This issue has been assigned CVE-2019-0062 .


The following software releases have been updated to resolve this specific
issue: 12.3R12-S15*, 12.3X48-D85, 14.1X53-D51, 15.1F6-S13, 15.1R7-S5,
15.1X49-D180, 15.1X53-D238, 16.1R4-S13, 16.1R7-S5, 16.2R2-S10, 17.1R3-S1,
17.2R2-S8, 17.2R3-S3, 17.3R3-S5, 17.4R2-S8, 17.4R3*, 18.1R3-S8*, 18.2R3,
18.3R3, 18.4R2, 19.1R1-S2, 19.1R2, 19.2R1, and all subsequent releases.

*pending publication

This issue is being tracked as PR 1410401 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).


Use access control lists or firewall filters to limit access to Junos J-Web
interface to only trusted users and networks to reduce risks of exploitation of
this vulnerability.

Using common BCPs of safe web browsing such as not clicking on links in email
or other media would reduce risks of exploitation of this vulnerability.

Disabling J-Web would completely prevent any exploitation of this issue.

Software Releases, patches and updates are available at https://www.juniper.net
/support/downloads/ .

Modification History:
2019-10-09: Initial Publication.
Related Links:

  o KB16613: Overview of the Juniper Networks SIRT Quarterly Security Bulletin
    Publication Process

  o KB16765: In which releases are vulnerabilities fixed

  o KB16446: Common Vulnerability Scoring System (CVSS) and Juniper's Security

  o Report a Security Vulnerability - How to Contact the Juniper Networks
    Security Incident Response Team

  o CVE-2019-0062 at cve.mitre.org

CVSS Score:
7.5 (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H)
Severity Level:
The Juniper SIRT would like to would like to acknowledge and thank Farid
Heydari for finding and reporting this issue.

- --------------------------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:


Australian Computer Emergency Response Team
The University of Queensland
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.
Comment: http://www.auscert.org.au/render.html?it=1967