CVE-2022-22248 Privilege escalation in Junos OS Evolved
A low-privileged user can modify configuration files to force another user to execute arbitrary commands, potentially gaining full system control.
- 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-2022-22248?
CVE-2022-22248 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 Incorrect Permission Assignment vulnerability in shell processing of Juniper Networks Junos OS Evolved allows a low-privileged local user to modify the contents of a configuration file which could cause another user to execute arbitrary commands within the context of the follow-on user's session. If the follow-on user is a high-privileged administrator, the attacker could leverage this vulnerability to take complete control of the target system. While this issue is triggered by a user, other than the attacker, accessing the Junos shell, an attacker simply requires Junos CLI access to exploit this vulnerability. This issue affects Juniper Networks Junos OS Evolved: 20.4-EVO versions prior to 20.4R3-S1-EVO; All versions of 21.1-EVO; 21.2-EVO versions prior to 21.2R3-EVO; 21.3-EVO versions prior to 21.3R2-EVO. This issue does not affect Juniper Networks Junos OS Evolved versions prior to 19.2R1-EVO.
Weakness: CWE-732
Which versions are affected by CVE-2022-22248?
It affects 1 product.
Products include Juniper Junos Os Evolved.
How do I fix CVE-2022-22248?
No fix has been published for CVE-2022-22248 yet. Limit exposure of the affected software until one is available.
Is CVE-2022-22248 being exploited?
There is no known exploitation of CVE-2022-22248 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-64r3-fpcv-4frw.