Unprotected storage of credentials in Juniper Junos OS

Published: 2020-10-15
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE ID CVE-2020-1669
Exploitation vector Local
Public exploit N/A
Vulnerable software
Juniper Junos OS
Operating systems & Components / Operating system

Vendor Juniper Networks, Inc.

Security Advisory

This security advisory describes one low risk vulnerability.

1) Unprotected storage of credentials

Risk: Low

CVSSv3: 4.1 [CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2020-1669

CWE-ID: CWE-256 - Unprotected Storage of Credentials

Exploit availability: No


The vulnerability allows a local user to gain access to other users' credentials.

The vulnerability exists due to the Juniper Device Manager (JDM) container stores password hashes in the world-readable file /etc/passwd. A local administrator can perform a brute-force attack to decrypt password hashes stored on the system.


Install updates from vendor's website.

Vulnerable software versions

Juniper Junos OS: 19.4R1, 19.4R1-S1, 19.4R1-S2, 19.4R2, 20.1R1-S1

CPE External links


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.