Due to an Improper Initialization vulnerability in Juniper Networks Junos OS on EX4650 devices, packets received on the management interface (em0) but not destined to the device, may be improperly forwarded to an egress interface, instead of being discarded. Such traffic being sent by a client may appear genuine, but is non-standard in nature and should be considered as potentially malicious. This issue affects: Juniper Networks Junos OS on EX4650 Series: All versions prior to 19.1R3-S8; 19.2 versions prior to 19.2R3-S5; 19.3 versions prior to 19.3R3-S5; 19.4 versions prior to 19.4R3-S7; 20.1 versions prior to 20.1R3-S3; 20.2 versions prior to 20.2R3-S4; 20.3 versions prior to 20.3R3-S3; 20.4 versions prior to 20.4R3-S2; 21.1 versions prior to 21.1R3-S1; 21.2 versions prior to 21.2R3; 21.3 versions prior to 21.3R2; 21.4 versions prior to 21.4R2; 22.1 versions prior to 22.1R1.
Advisories
Source ID Title
EUVD EUVD EUVD-2022-27333 Due to an Improper Initialization vulnerability in Juniper Networks Junos OS on EX4650 devices, packets received on the management interface (em0) but not destined to the device, may be improperly forwarded to an egress interface, instead of being discarded. Such traffic being sent by a client may appear genuine, but is non-standard in nature and should be considered as potentially malicious. This issue affects: Juniper Networks Junos OS on EX4650 Series: All versions prior to 19.1R3-S8; 19.2 versions prior to 19.2R3-S5; 19.3 versions prior to 19.3R3-S5; 19.4 versions prior to 19.4R3-S7; 20.1 versions prior to 20.1R3-S3; 20.2 versions prior to 20.2R3-S4; 20.3 versions prior to 20.3R3-S3; 20.4 versions prior to 20.4R3-S2; 21.1 versions prior to 21.1R3-S1; 21.2 versions prior to 21.2R3; 21.3 versions prior to 21.3R2; 21.4 versions prior to 21.4R2; 22.1 versions prior to 22.1R1.
Fixes

Solution

The following software releases have been updated to resolve this specific issue: 19.1R3-S8, 19.2R3-S5, 19.3R3-S5, 19.4R3-S7, 20.1R3-S3, 20.2R3-S4, 20.3R3-S3, 20.4R3-S2, 21.1R3-S1, 21.2R3, 21.3R2, 21.4R2, 22.1R1, and all subsequent releases.


Workaround

Disabling the net.transit_re sysctl flag will also cause management traffic forwarded to the PFE ports to be dropped: % sysctl -w net.transit_re=0 Note that sysctl flags do not survive a reboot.

References
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: juniper

Published:

Updated: 2024-09-16T18:24:01.434Z

Reserved: 2021-12-21T00:00:00

Link: CVE-2022-22186

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2022-04-14T16:15:07.987

Modified: 2024-11-21T06:46:20.870

Link: CVE-2022-22186

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.