CVE-2022-22183: Junos OS Evolved: A remote attacker may cause a CPU Denial of Service by sending genuine traffic to a device on a specific IPv4 port.
First published: Thu Apr 14 2022(Updated: )
An Improper Access Control vulnerability in Juniper Networks Junos OS Evolved allows a network-based unauthenticated attacker who is able to connect to a specific open IPv4 port, which in affected releases should otherwise be unreachable, to cause the CPU to consume all resources as more traffic is sent to the port to create a Denial of Service (DoS) condition. Continued receipt and processing of these packets will create a sustained Denial of Service (DoS) condition. This issue affects: Juniper Networks Junos OS Evolved 20.4 versions prior to 20.4R3-S2-EVO; 21.1 versions prior to 21.1R3-S1-EVO; 21.2 versions prior to 21.2R3-EVO; 21.3 versions prior to 21.3R2-EVO; 21.4 versions prior to 21.4R2-EVO. This issue does not affect Junos OS.
Credit: sirt@juniper.net
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Juniper JUNOS | =20.4-r1 | |
| Juniper JUNOS | =20.4-r1-s1 | |
| Juniper JUNOS | =20.4-r1-s2 | |
| Juniper JUNOS | =20.4-r2 | |
| Juniper JUNOS | =20.4-r2-s1 | |
| Juniper JUNOS | =20.4-r2-s2 | |
| Juniper JUNOS | =20.4-r2-s3 | |
| Juniper JUNOS | =20.4-r3 | |
| Juniper JUNOS | =20.4-r3-s1 | |
| Juniper JUNOS | =21.1-r1 | |
| Juniper JUNOS | =21.1-r1-s1 | |
| Juniper JUNOS | =21.1-r2 | |
| Juniper JUNOS | =21.1-r3 | |
| Juniper JUNOS | =21.2-r1 | |
| Juniper JUNOS | =21.2-r1-s1 | |
| Juniper JUNOS | =21.2-r1-s2 | |
| Juniper JUNOS | =21.2-r2 | |
| Juniper JUNOS | =21.2-r2-s1 | |
| Juniper JUNOS | =21.2-r2-s2 | |
| Juniper JUNOS | =21.3-r1 | |
| Juniper JUNOS | =21.3-r1-s1 | |
| Juniper JUNOS | =21.4-r1 | |
| Juniper JUNOS | =21.4-r1-s1 |
Remedy
The following software releases have been updated to resolve this specific issue: 20.4R3-S2-EVO, 21.1R3-S1-EVO, 21.2R3-EVO, 21.3R2-EVO, 21.4R2-EVO, 22.1R1-EVO, and all subsequent releases.
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2022-22183?
CVE-2022-22183 is classified as a high-severity vulnerability due to its potential for CPU exhaustion and disruption of service.
How do I fix CVE-2022-22183?
To remediate CVE-2022-22183, users should upgrade to the latest affected versions of Junos OS Evolved as specified in Juniper's security advisory.
What types of attacks are possible with CVE-2022-22183?
CVE-2022-22183 can be exploited by unauthenticated attackers to consume CPU resources by connecting to specific open IPv4 ports.
What versions of Junos OS Evolved are affected by CVE-2022-22183?
CVE-2022-22183 affects multiple versions including Junos OS Evolved 20.4 and 21.1 up to 21.4.
Is authentication required to exploit CVE-2022-22183?
No, CVE-2022-22183 can be exploited by unauthenticated attackers, making it particularly concerning for network security.
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- collector/mitre-cve
- source/MITRE
- agent/remedy
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- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/juniper
- canonical/juniper junos
- version/juniper junos/20.4-r1
- version/juniper junos/20.4-r1-s1
- version/juniper junos/20.4-r1-s2
- version/juniper junos/20.4-r2
- version/juniper junos/20.4-r2-s1
- version/juniper junos/20.4-r2-s2
- version/juniper junos/20.4-r2-s3
- version/juniper junos/20.4-r3
- version/juniper junos/20.4-r3-s1
- version/juniper junos/21.1-r1
- version/juniper junos/21.1-r1-s1
- version/juniper junos/21.1-r2
- version/juniper junos/21.1-r3
- version/juniper junos/21.2-r1
- version/juniper junos/21.2-r1-s1
- version/juniper junos/21.2-r1-s2
- version/juniper junos/21.2-r2
- version/juniper junos/21.2-r2-s1
- version/juniper junos/21.2-r2-s2
- version/juniper junos/21.3-r1
- version/juniper junos/21.3-r1-s1
- version/juniper junos/21.4-r1
- version/juniper junos/21.4-r1-s1