CVE-2022-22237: Junos OS: Peers not configured for TCP-AO can establish a BGP or LDP session even if authentication is configured locally

Published Oct 18, 2022

Updated

An Improper Authentication vulnerability in the kernel of Juniper Networks Junos OS allows an unauthenticated, network-based attacker to cause an impact on confidentiality or integrity. A vulnerability in the processing of TCP-AO will allow a BGP or LDP peer not configured with authentication to establish a session even if the peer is locally configured to use authentication. This could lead to untrusted or unauthorized sessions being established. This issue affects Juniper Networks Junos OS: 21.2 versions prior to 21.2R3-S1; 21.3 versions prior to 21.3R2-S2, 21.3R3; 21.4 versions prior to 21.4R2-S1, 21.4R3; 22.1 versions prior to 22.1R1-S1, 22.1R2. This issue does not affect Juniper Networks Junos OS Evolved.

Affected Software

20 affected components

Juniper Junos=21.2

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=21.2-r3

Juniper Junos=21.3

Juniper Junos=21.3-r1

Juniper Junos=21.3-r1-s1

Juniper Junos=21.3-r1-s2

Juniper Junos=21.3-r2

Juniper Junos=21.3-r2-s1

Juniper Junos=21.4

Juniper Junos=21.4-r1

Juniper Junos=21.4-r1-s1

Juniper Junos=21.4-r1-s2

Juniper Junos=21.4-r2

Juniper Junos=22.1-r1

Remediation

Information

The following software releases have been updated to resolve this specific issue: 21.2R3-S1, 21.3R2-S2, 21.3R3, 21.4R2-S1, 21.4R3, 22.1R1-S1, 22.1R2, 22.2R1, and all subsequent releases.

Event History

Oct 18, 2022

CVE Published

via MITRE·02:46 AM

Data Sourced

via MITRE·02:46 AM

RemedyDescriptionSeverityWeakness

Frequently Asked Questions

What is the severity of CVE-2022-22237?

The severity of CVE-2022-22237 is rated as critical due to its potential impact on confidentiality and integrity.

How do I fix CVE-2022-22237?

To fix CVE-2022-22237, upgrade your Junos OS to a version that has addressed this vulnerability.

Who is affected by CVE-2022-22237?

CVE-2022-22237 affects users of Junos OS versions 21.2, 21.3, and 21.4 among others.

What systems are impacted by CVE-2022-22237?

CVE-2022-22237 impacts systems running Juniper Networks Junos OS specifically in the kernel.

Can CVE-2022-22237 be exploited remotely?

Yes, CVE-2022-22237 can be exploited by an unauthenticated network-based attacker.