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CVE-2019-0062 : Vulnerability Insights and Analysis

Discover the session fixation vulnerability in J-Web on Junos OS with CVE-2019-0062. Learn about affected systems, exploitation risks, and mitigation steps to secure your network.

A vulnerability in J-Web on Junos OS known as session fixation can potentially allow an attacker to fix and hijack a J-Web administrator's web session, leading to potential administrative access to the device. This CVE affects various versions of Junos OS.

Understanding CVE-2019-0062

This CVE discloses a session fixation vulnerability in J-Web on Junos OS, impacting multiple versions of the operating system.

What is CVE-2019-0062?

This vulnerability in J-Web on Junos OS enables attackers to manipulate a J-Web administrator's web session through social engineering, potentially gaining unauthorized administrative access to the device.

The Impact of CVE-2019-0062

The vulnerability poses a high risk with a CVSS base score of 7.5, affecting confidentiality, integrity, and availability of the system. However, Juniper SIRT has not detected any malicious exploitation.

Technical Details of CVE-2019-0062

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability allows attackers to fix and hijack a J-Web administrator's web session, potentially leading to unauthorized administrative access.

Affected Systems and Versions

        Junos OS 12.3R12-S15 on EX Series
        Junos OS 12.3X48-D85, 15.1X49-D180 on SRX Series
        Various versions of Junos OS including 14.1X53, 15.1, 16.1, 16.2, 17.1, 17.2, 17.3, 17.4, 18.1, 18.2, 18.3, 18.4, 19.1

Exploitation Mechanism

The vulnerability requires J-Web to be enabled on the device for exploitation, making it crucial for attackers to leverage social engineering techniques.

Mitigation and Prevention

Protecting systems from CVE-2019-0062 requires immediate actions and long-term security practices.

Immediate Steps to Take

        Limit access to Junos J-Web interface using access control lists or firewall filters
        Follow safe web browsing practices to reduce the risk of exploitation
        Consider disabling J-Web to prevent any exploitation of the vulnerability

Long-Term Security Practices

        Regularly update Junos OS to the patched versions provided by Juniper Networks

Patching and Updates

Juniper Networks has released updated software versions to address the vulnerability. Ensure your system is updated to the patched versions to mitigate the risk.

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