CVE-2020-1669: Junos OS: NFX350: Password hashes stored in world-readable format

Severity: low (CVSS 2.1 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-10-16 · updated 2026-06-17
Weakness: CWE-256

Description

The Juniper Device Manager (JDM) container, used by the disaggregated Junos OS architecture on Juniper Networks NFX350 Series devices, stores password hashes in the world-readable file /etc/passwd. This is not a security best current practice as it can allow an attacker with access to the local filesystem the ability to brute-force decrypt password hashes stored on the system. This issue affects Juniper Networks Junos OS on NFX350: 19.4 versions prior to 19.4R3; 20.1 versions prior to 20.1R1-S4, 20.1R2.

Affected products

Juniper Junos OS: 19.4-r1, 19.4-r1-s1, 19.4-r1-s2, 19.4-r2, 20.1-r1, 20.1-r1-s1 (+2)

References

Get alerted when CVE-2020-1669 or the next vulnerability affects your stack