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.
 

This issue affects Juniper Networks Junos OS Evolved:

• All versions prior to 20.4R3-S7-EVO;
• 21.1 versions 21.1R1-EVO and later;
• 21.2 versions prior to 21.2R3-S5-EVO;
• 21.3 versions prior to 21.3R3-S4-EVO;
• 21.4 versions prior to 21.4R3-S4-EVO;
• 22.1 versions prior to 22.1R3-S2-EVO;
• 22.2 versions prior to 22.2R2-EVO.

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-2023-44187.

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.
 

This issue is being tracked as PR 1639609 which is visible on the Customer Support website.

Note: Juniper SIRT's policy [juniper.net] is not to evaluate releases which are beyond End of Engineering (EOE) or End of Life (EOL).

• Restrict Junos OS Evolved shell access to trusted users only
• Avoid or disallow the use of the 'file copy' command.

2023-10-11: Initial Publication

• KB16613: Overview of the Juniper Networks SIRT Quarterly Security Bulletin Publication Process [juniper.net]
• KB16765: In which releases are vulnerabilities fixed? [juniper.net]
• KB16446: Common Vulnerability Scoring System (CVSS) and Juniper's Security Advisories [juniper.net]
• Report a Security Vulnerability - How to Contact the Juniper Networks Security Incident Response Team
• CVE-2023-44187 at cve.mitre.org
• https://supportportal.juniper.net/JSA73151 [juniper.net]