CVE-2020-1619 : Exploit Details and Defense Strategies

A privilege escalation vulnerability in Juniper Networks QFX10K Series, EX9200 Series, MX Series, and PTX Series allows a local high privileged user to access the underlying WRL host.

Understanding CVE-2020-1619

This CVE affects Juniper Networks Junos OS versions, leading to privilege escalation.

What is CVE-2020-1619?

This vulnerability enables a local authenticated high privileged user to access the WRL host in specific Juniper Networks series, impacting Junos OS versions.

The Impact of CVE-2020-1619

CVSS Score: 6 (Medium Severity)
Attack Complexity: Low
Attack Vector: Local
Privileges Required: High
Confidentiality Impact: High
Integrity Impact: High
Availability Impact: None

Technical Details of CVE-2020-1619

This section provides in-depth technical information regarding the vulnerability.

Vulnerability Description

Affects Juniper Networks QFX10K Series, EX9200 Series, MX Series, PTX Series
Allows access to the underlying WRL host

Affected Systems and Versions

Platforms: QFX10K Series, EX9200 Series, MX Series, PTX Series
Vulnerable Junos OS versions: 16.1 to 18.4

Exploitation Mechanism

Local authenticated high privileged user required
Only affects NG-RE with vmhost

Mitigation and Prevention

Effective steps to mitigate the impact of CVE-2020-1619.

Immediate Steps to Take

Update affected software versions to resolve the issue
Verify NG-RE with vmhost using 'show vmhost status'

Long-Term Security Practices

Regularly monitor for system access anomalies
Conduct security audits and privilege reviews

Patching and Updates

Install the following software releases: 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 subsequent releases.