CVE-2022-22237

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

State: Published
Severity: 6.5 Medium
Published: Oct 18, 2022
Updated: May 10, 2025
Reserved: Dec 21, 2021

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Description

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.

Scores

CVSS	Score	Vector	Source
3.1	6.5 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N	juniper

Weaknesses

CWE-287 Improper Authentication

Affected Products

Product	Versions
Junos OSJuniper Networks	before 21.2R1Not affected 21.2 to before 21.2R3-S1Affected 21.3 to before 21.3R2-S2, 21.3R3Affected 21.4 to before 21.4R2-S1, 21.4R3Affected 22.1 to before 22.1R1-S1, 22.1R2Affected

References

https://kb.juniper.net/JSA69893

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