ESB-2019.0091 - [Juniper] Juniper EX2300 and EX3400 series: Multiple vulnerabilities 2019-01-10

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.0091
         Multiple vulnerabilities have been identified in Juniper
                         EX2300 and EX3400 series
                              10 January 2019

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

Product:           Juniper EX2300 and EX3400 series
Publisher:         Juniper Networks
Operating System:  Juniper
Impact/Access:     Denial of Service -- Existing Account   
                   Reduced Security  -- Unknown/Unspecified
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-0009 CVE-2019-0002 

Original Bulletin: 
   https://kb.juniper.net/InfoCenter/index?page=content&id=JSA10901
   https://kb.juniper.net/InfoCenter/index?page=content&id=JSA10909

Comment: This bulletin contains two (2) Juniper Networks security advisories.

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2019-01 Security Bulletin: Junos OS: EX2300 and EX3400 series: Certain 
stateless firewall filter rules might not take effect (CVE-2019-0002)

[JSA10901]

Product Affected:
This issue affects Junos OS 15.1X53, 18.1, 18.2. 

Affected platforms: EX2300 and EX3400 series.

Problem:
On EX2300 and EX3400 series, stateless firewall filter configuration that uses
the action 'policer' in combination with other actions might not take effect.

When this issue occurs, the output of the command:

show pfe filter hw summary

will not show the entry for:

RACL group

Affected releases are Junos OS on EX2300 and EX3400 series:

    15.1X53 versions prior to 15.1X53-D590;
    18.1 versions prior to 18.1R3;
    18.2 versions prior to 18.2R2.

This issue affect both IPv4 and IPv6 firewall filter.

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

This issue was seen during production usage.

This issue has been assigned CVE-2019-0002.

Solution:

The following software releases have been updated to resolve this specific 
issue: Junos OS 15.1X53-D590, 18.1R3, 18.2R2, 18.3R1, and all subsequent 
releases.

This issue is being tracked as PR 1364866 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:

There are no known workarounds for this issue.

Implementation:

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

Modification History:

2019-01-09: Initial Publication.

Related Links:

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

KB16765: In which releases are vulnerabilities fixed?

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

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

CVE-2019-0002 at cve.mitre.org

https://kb.juniper.net/JSA10901

show pfe filter hw summary

CVSS Score:

5.8 (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N)

Risk Level:

Medium

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."

- ---

2019-01 Security Bulletin: Junos OS: EX2300 and EX3400: High disk I/O 
operations may disrupt the communication between RE and PFE (CVE-2019-0009)

[JSA10909]

Product Affected:

This issue affects Junos OS 15.1X53, 18.1, 18.2. Affected platforms: EX2300 and
EX3400 series.

Problem:

On EX2300 and EX3400 series, high disk I/O operations may disrupt the 
communication between the routing engine (RE) and the packet forwarding engine
(PFE).

In a virtual chassis (VC) deployment, this issue disrupts communication between
the VC members.

This issue does not affect other Junos platforms.

Affected releases are Junos OS on EX2300 and EX3400 series:

    15.1X53 versions prior to 15.1X53-D590;
    18.1 versions prior to 18.1R2-S2, 18.1R3;
    18.2 versions prior to 18.2R2.

This issue was seen during production usage.

This issue has been assigned CVE-2019-0009.

Solution:

The following software releases have been updated to resolve this specific 
issue: Junos OS 15.1X53-D113, 15.1X53-D590, 18.1R2-S2, 18.1R3, 18.2R2, 18.3R1,
and all subsequent releases.

This issue is being tracked as PR 1355593 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:

Avoid performing operation that may generate high disk I/O.

Limiting the access to the device to only trusted administrators from trusted
administrative networks or hosts would minimize the risk.

Implementation:

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

Modification History:

2019-01-09: Initial Publication.

Related Links:

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

KB16765: In which releases are vulnerabilities fixed?

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

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

CVE-2019-0009 at cve.mitre.org

https://kb.juniper.net/JSA10909

CVSS Score:

5.5 (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)

Risk Level:
Medium

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."

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