PT-2022-15291 · Juniper Networks · Junos+1

Published 2022-04-14 · Updated 2022-04-21 · CVE-2022-22196

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Juniper Networks Junos OS versions prior to 19.3R3-S4 Juniper Networks Junos OS versions prior to 19.4R2-S6 Juniper Networks Junos OS versions prior to 19.4R3-S6 Juniper Networks Junos OS versions prior to 20.1R3-S2 Juniper Networks Junos OS versions prior to 20.2R3-S3 Juniper Networks Junos OS versions prior to 20.3R3-S1 Juniper Networks Junos OS versions prior to 20.4R3 Juniper Networks Junos OS versions prior to 21.1R3 Juniper Networks Junos OS versions prior to 21.2R2 Juniper Networks Junos OS Evolved versions prior to 20.4R3-S3-EVO Juniper Networks Junos OS Evolved versions prior to 21.2R2-EVO

Description An Improper Check for Unusual or Exceptional Conditions vulnerability in the Routing Protocol Daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent, unauthenticated attacker with an established ISIS adjacency to cause a Denial of Service (DoS). The rpd CPU spikes to 100% after a malformed ISIS TLV has been received which will lead to processing issues of routing updates and in turn traffic impact.

Recommendations For Juniper Networks Junos OS versions prior to 19.3R3-S4, update to version 19.3R3-S4 or later. For Juniper Networks Junos OS versions prior to 19.4R2-S6, update to version 19.4R2-S6 or later. For Juniper Networks Junos OS versions prior to 19.4R3-S6, update to version 19.4R3-S6 or later. For Juniper Networks Junos OS versions prior to 20.1R3-S2, update to version 20.1R3-S2 or later. For Juniper Networks Junos OS versions prior to 20.2R3-S3, update to version 20.2R3-S3 or later. For Juniper Networks Junos OS versions prior to 20.3R3-S1, update to version 20.3R3-S1 or later. For Juniper Networks Junos OS versions prior to 20.4R3, update to version 20.4R3 or later. For Juniper Networks Junos OS versions prior to 21.1R3, update to version 21.1R3 or later. For Juniper Networks Junos OS versions prior to 21.2R2, update to version 21.2R2 or later. For Juniper Networks Junos OS Evolved versions prior to 20.4R3-S3-EVO, update to version 20.4R3-S3-EVO or later. For Juniper Networks Junos OS Evolved versions prior to 21.2R2-EVO, update to version 21.2R2-EVO or later.

Fix

DoS

Improper Check for Exceptional Conditions

Weakness Enumeration

CWE-754

Related Identifiers

CVE-2022-22196

Affected Products

Junos

Junos Evolved

References · 5

• https://osv.dev/vulnerability/CVE-2022-22196 · Vendor Advisory
• https://kb.juniper.net/JSA69509 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-22196 · Security Note
• https://t.me/cibsecurity/40790 · Telegram Post
• https://t.me/cvenotify/28928 · Telegram Post