CVE-2023-44187 : Vulnerability Insights and Analysis

A vulnerability in the 'file copy' command of Junos OS Evolved can lead to the exposure of sensitive information, potentially allowing unauthorized access by authenticated attackers with shell access.

Understanding CVE-2023-44187

This CVE identifies a security issue in Junos OS Evolved that affects certain versions, potentially enabling a local attacker to view passwords entered on the CLI.

What is CVE-2023-44187?

An Exposure of Sensitive Information vulnerability in the 'file copy' command of Junos OS Evolved allows a local, authenticated attacker with shell access to view passwords supplied on the CLI command-line. These credentials can then be used to provide unauthorized access to the remote system.

The Impact of CVE-2023-44187

The vulnerability could result in unauthorized access to sensitive information and systems, posing a risk to the confidentiality of data.

Technical Details of CVE-2023-44187

The vulnerability has a CVSSv3.1 base score of 5.9 with medium severity. It requires low privileges and user interaction, affecting local attack vectors with low complexity.

Vulnerability Description

The issue allows a local attacker to view passwords entered via the CLI, potentially leading to unauthorized remote access.

Affected Systems and Versions

Junos OS Evolved versions prior to 20.4R3-S7-EVO
Junos OS Evolved 21.1 versions 21.1R1-EVO and later
Junos OS Evolved versions prior to 21.2R3-S5-EVO
Junos OS Evolved versions prior to 21.3R3-S4-EVO
Junos OS Evolved versions prior to 21.4R3-S4-EVO
Junos OS Evolved versions prior to 22.1R3-S2-EVO
Junos OS Evolved versions prior to 22.2R2-EVO

Exploitation Mechanism

Currently, there is no known malicious exploitation of this vulnerability by Juniper SIRT.

Mitigation and Prevention

To address CVE-2023-44187, it is crucial to take immediate steps and implement long-term security practices.

Immediate Steps to Take

Update to the patched versions of Junos OS Evolved specified in the solution section.
Restrict shell access to trusted users only.
Avoid or disallow the use of the 'file copy' command.

Long-Term Security Practices

Regularly update Junos OS Evolved to the latest releases to mitigate known vulnerabilities.

Patching and Updates

The following software releases have been updated to resolve this specific issue: Junos OS Evolved 20.4R3-S7-EVO, 21.2R3-S5-EVO, 21.3R3-S4-EVO, 21.4R3-S4-EVO, 22.1R3-S2-EVO, 22.2R2-EVO, 22.3R1-EVO, and all subsequent releases.