CVE-2022-22221 Junos OS: SRX and EX Series: Local privilege escalation flaw in "download" functionality
A local attacker with low privileges can escalate to full control via improper neutralization in the download manager of Junos OS on SRX and EX devices.
- 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-2022-22221?
CVE-2022-22221 is a high-severity vulnerability in Juniper Junos, published on 20 Jul 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
An Improper Neutralization of Special Elements vulnerability in the download manager of Juniper Networks Junos OS on SRX Series and EX Series allows a locally authenticated attacker with low privileges to take full control over the device. One aspect of this vulnerability is that the attacker needs to be able to execute any of the "request ..." or "show system download ..." commands. This issue affects Juniper Networks Junos OS on SRX Series and EX Series: All versions prior to 19.2R1-S9, 19.2R3-S5; 19.3 versions prior to 19.3R3-S6; 19.4 versions prior to 19.4R3-S8; 20.1 versions prior to 20.1R3-S4; 20.2 versions prior to 20.2R3-S4; 20.3 versions prior to 20.3R3-S3; 20.4 versions prior to 20.4R3-S2, 20.4R3-S3; 21.1 versions prior to 21.1R3-S1; 21.2 versions prior to 21.2R2-S2, 21.2R3; 21.3 versions prior to 21.3R2, 21.3R3; 21.4 versions prior to 21.4R1-S1, 21.4R2.
Which versions are affected by CVE-2022-22221?
It affects 1 product.
Products include Juniper Junos.
How do I fix CVE-2022-22221?
No fix has been published for CVE-2022-22221 yet. Limit exposure of the affected software until one is available.
Is CVE-2022-22221 being exploited?
There is no known exploitation of CVE-2022-22221 in the wild and no public exploit code.
Other vulnerabilities in Juniper Junos
- CVE-2023-36845 Juniper Junos OS EX Series and SRX Series PHP External Variable Modification
- CVE-2020-1631 Juniper Junos OS Path Traversal
- CVE-2025-21590 Juniper Junos OS Improper Isolation or Compartmentalization
- CVE-2023-36851 Juniper Junos OS SRX Series Missing Authentication for Critical Function
- CVE-2023-36844 Juniper Junos OS EX Series PHP External Variable Modification
Sources
Also known as GHSA-5w8c-34c5-7jq9.