CVE-2019-0070 : What You Need to Know

A vulnerability in Input Validation in Junos OS on NFX Series devices allows a local attacker to escalate privileges, potentially leading to unauthorized access and complete system control.

Understanding CVE-2019-0070

This CVE involves an Improper Input Validation weakness in Junos OS on NFX Series devices.

What is CVE-2019-0070?

This vulnerability enables a local attacker to elevate their permissions, gain unauthorized access to parts of the NFX platform, and execute commands beyond their authorized control, ultimately gaining complete system control.

The Impact of CVE-2019-0070

CVSS Base Score: 8.8 (High)
Attack Vector: Local
Confidentiality, Integrity, and Availability Impact: High
Scope: Changed
Privileges Required: Low
User Interaction: None
Juniper SIRT has not detected any malicious exploitation of this vulnerability.

Technical Details of CVE-2019-0070

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The weakness in Input Validation allows a local attacker to take control of unauthorized parts of the NFX platform and execute commands outside their authorized scope.

Affected Systems and Versions

Vendor: Juniper Networks
Product: Junos OS
Affected Versions: Earlier than 18.2R1 on NFX Series devices

Exploitation Mechanism

The attacker can exploit this vulnerability locally to escalate their privileges and gain unauthorized access to the system.

Mitigation and Prevention

Protect your systems from CVE-2019-0070 by following these mitigation strategies.

Immediate Steps to Take

Update to Junos OS 18.2R1 or later on NFX Series devices.

Long-Term Security Practices

Implement strict input validation mechanisms.
Monitor and restrict user permissions.
Conduct regular security audits.

Patching and Updates

Ensure timely installation of software updates and patches to address this vulnerability.