Junos OS Evolved: Configd leaks hashes via log file and is world readable

published 2020-04-08 6y ago modified 2026-06-17 4mo ago also EUVD-2020-12488

cvss: 5.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 24%
public exploits: 0; none known

A local, authenticated user with shell can obtain the hashed values of login passwords via configd streamer log. This issue affects all versions of Junos OS Evolved prior to 19.3R1.

Patch / fix

fixed in 1

Juniper Networks Junos OS Evolved 19.3R1-EVO

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Exploit prediction

0.32% chance of exploitation in the next 30 days, higher than 24% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
CNA	3.1	5.5	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD	3.1	5.5	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD	2.0	2.1	AV:L/AC:L/Au:N/C:P/I:N/A:N

Affected products

Juniper Networks Junos OS Evolved

Classification

Weakness

CWE-664 Improper Control of a Resource Through its Lifetime
CWE-532 Insertion of Sensitive Information into Log File

References

kb.juniper.net /JSA11003
vendor-advisory

Sources

CVE List CVE-2020-1620
NVD CVE-2020-1620

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