PT-2022-1479 · Juniper Networks · Junos

Published 2022-01-12 · Updated 2022-02-11 · CVE-2022-22161

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Juniper Networks Junos OS versions prior to 18.3R3-S6 Juniper Networks Junos OS 18.4 versions prior to 18.4R2-S9, 18.4R3-S9 Juniper Networks Junos OS 19.1 versions prior to 19.1R2-S3, 19.1R3-S7 Juniper Networks Junos OS 19.2 versions prior to 19.2R1-S7, 19.2R3-S3 Juniper Networks Junos OS 19.3 versions prior to 19.3R2-S7, 19.3R3-S4 Juniper Networks Junos OS 19.4 versions prior to 19.4R2-S5, 19.4R3-S5 Juniper Networks Junos OS 20.1 versions prior to 20.1R3-S1 Juniper Networks Junos OS 20.2 versions prior to 20.2R3-S2 Juniper Networks Junos OS 20.3 versions prior to 20.3R3-S1 Juniper Networks Junos OS 20.4 versions prior to 20.4R2-S2, 20.4R3 Juniper Networks Junos OS 21.1 versions prior to 21.1R2 Juniper Networks Junos OS 21.2 versions prior to 21.2R1-S1, 21.2R2

Description An Uncontrolled Resource Consumption issue in the kernel of Juniper Networks Junos OS allows an unauthenticated network-based attacker to cause 100% CPU load and the device to become unresponsive by sending a flood of traffic to the out-of-band management ethernet port. Continued receipt of a flood will create a sustained Denial of Service (DoS) condition. Once the flood subsides, the system will recover by itself. An indication that the system is affected by this issue would be that an irq handled by the fman process is shown to be using a high percentage of CPU cycles.

Recommendations For Juniper Networks Junos OS versions prior to 18.3R3-S6, update to version 18.3R3-S6 or later. For Juniper Networks Junos OS 18.4 versions prior to 18.4R2-S9, 18.4R3-S9, update to version 18.4R2-S9, 18.4R3-S9 or later. For Juniper Networks Junos OS 19.1 versions prior to 19.1R2-S3, 19.1R3-S7, update to version 19.1R2-S3, 19.1R3-S7 or later. For Juniper Networks Junos OS 19.2 versions prior to 19.2R1-S7, 19.2R3-S3, update to version 19.2R1-S7, 19.2R3-S3 or later. For Juniper Networks Junos OS 19.3 versions prior to 19.3R2-S7, 19.3R3-S4, update to version 19.3R2-S7, 19.3R3-S4 or later. For Juniper Networks Junos OS 19.4 versions prior to 19.4R2-S5, 19.4R3-S5, update to version 19.4R2-S5, 19.4R3-S5 or later. For Juniper Networks Junos OS 20.1 versions prior to 20.1R3-S1, update to version 20.1R3-S1 or later. For Juniper Networks Junos OS 20.2 versions prior to 20.2R3-S2, update to version 20.2R3-S2 or later. For Juniper Networks Junos OS 20.3 versions prior to 20.3R3-S1, update to version 20.3R3-S1 or later. For Juniper Networks Junos OS 20.4 versions prior to 20.4R2-S2, 20.4R3, update to version 20.4R2-S2, 20.4R3 or later. For Juniper Networks Junos OS 21.1 versions prior to 21.1R2, update to version 21.1R2 or later. For Juniper Networks Junos OS 21.2 versions prior to 21.2R1-S1, 21.2R2, update to version 21.2R1-S1, 21.2R2 or later.

Fix

DoS

Resource Exhaustion

Weakness Enumeration

CWE-400

Related Identifiers

BDU:2022-00625

CVE-2022-22161

Affected Products

Junos

References · 4

• https://osv.dev/vulnerability/CVE-2022-22161 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-22161 · Security Note
• https://kb.juniper.net/JSA11269 · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-00625 · Security Note