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2020-04 Security Bulletin: Junos OS: QFX10K Series, EX9200 Series, ACX Series, MX Series, PTX Series: Privilege escalation vulnerability in NG-RE. (CVE-2020-1619)

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Article ID: JSA11002 SECURITY_ADVISORIES Last Updated: 20 Apr 2020Version: 3.0
Product Affected:
This issue affects Junos OS 16.1, 16.2, 17.1, 17.2, 17.3, 17.4, 18.1, 18.2, 18.2X75, 18.3, 18.4. Affected platforms: QFX10K Series, EX9200 Series, ACX Series, MX Series, PTX Series
Problem:

A privilege escalation vulnerability in Juniper Networks QFX10K Series, EX9200 Series, ACX Series, MX Series, and PTX Series with Next-Generation Routing Engine (NG-RE), allows a local authenticated high privileged user to access the underlying WRL host.

This issue only affects QFX10K Series with NG-RE, EX9200 Series with NG-RE, ACX Series with NG-RE, MX Series with NG-RE and PTX Series with NG-RE; which uses vmhost.

This issue affects Juniper Networks Junos OS:

16.1 versions prior to 16.1R7-S6;

16.2 versions prior to 16.2R2-S11;

17.1 versions prior to 17.1R2-S11, 17.1R3;

17.2 versions prior to 17.2R1-S9, 17.2R3-S3;

17.3 versions prior to 17.3R2-S5, 17.3R3-S7;

17.4 versions prior to 17.4R2-S7, 17.4R3;

18.1 versions prior to 18.1R3-S4;

18.2 versions prior to 18.2R3;

18.2X75 versions prior to 18.2X75-D50;

18.3 versions prior to 18.3R2;

18.4 versions prior to 18.4R2.

To identify whether the device has NG-RE with vmhost, customer can run the following command:

> show vmhost status
Compute cluster: rainier-re-cc
Compute Node: rainier-re-cn, Online

If the "show vmhost status" is not supported, then the device does not have NG-RE with vmhost.

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-2020-1619.

Solution:

The following software releases have been updated to resolve this specific issue: 16.1R7-S6, 16.2R2-S11, 17.1R2-S11, 17.1R3, 17.2R1-S9, 17.2R3-S3, 17.3R2-S5, 17.3R3-S7, 17.4R2-S7, 17.4R3, 18.1R3-S4, 18.2R3, 18.2X75-D50, 18.3R2, 18.4R2, 19.1R1 and all subsequent releases.

This issue is being tracked as 1398331.

Workaround:

There are no available workarounds for this issue.

Implementation:
Software Releases, patches and updates are available at https://www.juniper.net/support/downloads/.
Modification History:
‚Äč2020-04-08: Initial publication
2020-04-20: Adding ACX Series in the list
CVSS Score:
6.0 (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N)
Severity Level:
Medium
Severity 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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