CVE-2022-22239 Junos OS Evolved: The ssh CLI command always runs as root which can lead to privilege escalation
A local attacker can escalate privileges to root via the ssh CLI command in Junos OS Evolved, requiring an upgrade to secure the device.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2022-22239?
CVE-2022-22239 is a high-severity vulnerability in Juniper Junos Os Evolved, published on 18 Oct 2022. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
An Execution with Unnecessary Privileges vulnerability in Management Daemon (mgd) of Juniper Networks Junos OS Evolved allows a locally authenticated attacker with low privileges to escalate their privileges on the device and potentially remote systems. This vulnerability allows a locally authenticated attacker with access to the ssh operational command to escalate their privileges on the system to root, or if there is user interaction on the local device to potentially escalate privileges on a remote system to root. This issue affects Juniper Networks Junos OS Evolved: All versions prior to 20.4R3-S5-EVO; 21.1-EVO versions prior to 21.1R3-EVO; 21.2-EVO versions prior to 21.2R2-S1-EVO, 21.2R3-EVO; 21.3-EVO versions prior to 21.3R2-EVO. This issue does not affect Juniper Networks Junos OS.
Which versions are affected by CVE-2022-22239?
It affects 1 product.
Products include Juniper Junos Os Evolved.
How do I fix CVE-2022-22239?
No fix has been published for CVE-2022-22239 yet. Limit exposure of the affected software until one is available.
Is CVE-2022-22239 being exploited?
There is no known exploitation of CVE-2022-22239 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-h38r-wg7q-9555.