CVE-2020-1669 Junos OS: NFX350: Password hashes stored in world-readable format
Local attackers can read world-readable password hashes on Juniper NFX350 devices, enabling offline brute-force attacks against user credentials.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-1669?
CVE-2020-1669 is a medium-severity vulnerability in Juniper Junos, published on 16 Oct 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Which versions are affected by CVE-2020-1669?
It affects 1 product.
Products include Juniper Junos.
How do I fix CVE-2020-1669?
No fix has been published for CVE-2020-1669 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-1669 being exploited?
There is no known exploitation of CVE-2020-1669 in the wild and no public exploit code.
Other vulnerabilities in Juniper Junos
- CVE-2023-36845 Juniper Junos OS EX Series and SRX Series PHP External Variable Modification
- CVE-2020-1631 Juniper Junos OS Path Traversal
- CVE-2025-21590 Juniper Junos OS Improper Isolation or Compartmentalization
- CVE-2023-36851 Juniper Junos OS SRX Series Missing Authentication for Critical Function
- CVE-2023-36844 Juniper Junos OS EX Series PHP External Variable Modification
Sources
Also known as GHSA-9pj7-q8h3-hrhp.