CVE-2020-1621 Junos OS Evolved: Configd leaks hashes via stream and is world readable
A local authenticated user can read hashed login passwords from world-readable configd traces, exposing sensitive 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-2020-1621?
CVE-2020-1621 is a medium-severity vulnerability in Juniper Junos Os Evolved, published on 8 Apr 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A local, authenticated user with shell can obtain the hashed values of login passwords via configd traces. This issue affects all versions of Junos OS Evolved prior to 19.3R1.
Which versions are affected by CVE-2020-1621?
It affects 1 product.
Products include Juniper Junos Os Evolved.
How do I fix CVE-2020-1621?
No fix has been published for CVE-2020-1621 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-1621 being exploited?
There is no known exploitation of CVE-2020-1621 in the wild and no public exploit code.
Other vulnerabilities in Juniper Junos Os Evolved
- CVE-2026-21902 Junos OS Evolved: PTX Series: A vulnerability allows a unauthenticated, network-based attacker to execute code as root
- CVE-2023-28983 Junos OS Evolved: Shell Injection vulnerability in the gNOI server
- CVE-2025-21599 Denial of service in Junos OS Evolved
- CVE-2024-47502 Junos OS Evolved: TCP session state is not always cleared on the Routing Engine leading to DoS
- CVE-2024-39531 Junos OS Evolved: ACX 7000 Series: Protocol specific DDoS configuration affects other protocols
Sources
Also known as GHSA-cwf2-c942-3pqv.