CVE-2024-47489

Junos OS Evolved: ACX Series: Receipt of specific transit protocol packets is incorrectly processed by the RE

Published Oct 11, 2024 CVSS 4.0 · 6.9 Medium EPSS < 1% KEV · Not listed
Description
An Improper Handling of Exceptional Conditions vulnerability in the Packet Forwarding Engine (pfe) of the Juniper Networks Junos OS Evolved on ACX Series devices allows an unauthenticated, network based attacker sending specific transit protocol traffic to cause a partial Denial of Service (DoS) to downstream devices.

Receipt of specific transit protocol packets is incorrectly processed by the Routing Engine (RE), filling up the DDoS protection queue which is shared between routing protocols. This influx of transit protocol packets causes DDoS protection violations, resulting in protocol flaps which can affect connectivity to networking devices.

This issue affects both IPv4 and IPv6. This issue does not require any specific routing protocol to be configured or enabled.

The following commands can be used to monitor the DDoS protection queue:

       labuser@re0> show evo-pfemand host pkt-stats

    labuser@re0> show host-path ddos all-policers

This issue affects Junos OS Evolved: 



* All versions before 21.4R3-S8-EVO, 
* from 22.2 before 22.2R3-S4-EVO, 
* from 22.3 before 22.3R3-S4-EVO, 
* from 22.4 before 22.4R3-S3-EVO, 
* from 23.2 before 23.2R2-EVO, 
* from 23.4 before 23.4R1-S1-EVO, 23.4R2-EVO, 
* from 24.2 before 24.2R2-EVO.

Remediation

Vendor Solution

The following software releases have been updated to resolve this specific issue: Junos OS Evolved: 21.4R3-S8-EVO, 22.2R3-S4-EVO, 22.3R3-S4-EVO*, 22.4R3-S3-EVO, 23.2R2-EVO, 23.4R1-S1-EVO, 23.4R2-EVO, 24.2R2-EVO*, 24.4R1-EVO*, and all subsequent releases. * Future Release


Vendor Workaround

There are no known workarounds for this issue.

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2024-42494 An Improper Handling of Exceptional Conditions vulnerability in the Packet Forwarding Engine (pfe) of the Juniper Networks Junos OS Evolved on ACX Series devices allows an unauthenticated, network based attacker sending specific transit protocol traffic to cause a partial Denial of Service (DoS) to downstream devices. Receipt of specific transit protocol packets is incorrectly processed by the Routing Engine (RE), filling up the DDoS protection queue which is shared between routing protocols. This influx of transit protocol packets causes DDoS protection violations, resulting in protocol flaps which can affect connectivity to networking devices. This issue affects both IPv4 and IPv6. This issue does not require any specific routing protocol to be configured or enabled. The following commands can be used to monitor the DDoS protection queue:        labuser@re0> show evo-pfemand host pkt-stats     labuser@re0> show host-path ddos all-policers This issue affects Junos OS Evolved:  * All versions before 21.4R3-S8-EVO,  * from 22.2 before 22.2R3-S4-EVO,  * from 22.3 before 22.3R3-S4-EVO,  * from 22.4 before 22.4R3-S3-EVO,  * from 23.2 before 23.2R2-EVO,  * from 23.4 before 23.4R1-S1-EVO, 23.4R2-EVO,  * from 24.2 before 24.2R2-EVO.
References
History
Type Values Removed Values Added
First Time appeared Juniper acx5448
Juniper acx5448-d
Juniper acx5448-m
Juniper acx7020
Juniper acx7024
Juniper acx7024x
Juniper acx710
Juniper acx7100
Juniper acx7300
Juniper acx7509
Juniper junos Os Evolved
CPEs cpe:2.3:h:juniper:acx5448-d:-:*:*:*:*:*:*:*
cpe:2.3:h:juniper:acx5448-m:-:*:*:*:*:*:*:*
cpe:2.3:h:juniper:acx5448:-:*:*:*:*:*:*:*
cpe:2.3:h:juniper:acx7020:-:*:*:*:*:*:*:*
cpe:2.3:h:juniper:acx7024:-:*:*:*:*:*:*:*
cpe:2.3:h:juniper:acx7024x:-:*:*:*:*:*:*:*
cpe:2.3:h:juniper:acx7100:-:*:*:*:*:*:*:*
cpe:2.3:h:juniper:acx710:-:*:*:*:*:*:*:*
cpe:2.3:h:juniper:acx7300:-:*:*:*:*:*:*:*
cpe:2.3:h:juniper:acx7509:-:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:*:*:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:21.4:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:21.4:r1-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:21.4:r1-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:21.4:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:21.4:r2-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:21.4:r2-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:21.4:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:21.4:r3-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:21.4:r3-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:21.4:r3-s3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:21.4:r3-s4:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:21.4:r3-s5:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:21.4:r3-s6:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:21.4:r3-s7:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:21.4:r3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.2:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.2:r1-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.2:r1-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.2:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.2:r2-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.2:r2-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.2:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.2:r3-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.2:r3-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.2:r3-s3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.2:r3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.3:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.3:r1-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.3:r1-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.3:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.3:r2-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.3:r2-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.3:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.3:r3-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.3:r3-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.3:r3-s3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.3:r3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.4:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.4:r1-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.4:r1-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.4:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.4:r2-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.4:r2-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.4:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.4:r3-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.4:r3-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:22.4:r3:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:23.2:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:23.2:r1-s1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:23.2:r1-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:23.2:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:23.4:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:23.4:r1:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:23.4:r2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:24.2:-:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:24.2:r1-s2:*:*:*:*:*:*
cpe:2.3:o:juniper:junos_os_evolved:24.2:r1:*:*:*:*:*:*
Vendors & Products Juniper acx5448
Juniper acx5448-d
Juniper acx5448-m
Juniper acx7020
Juniper acx7024
Juniper acx7024x
Juniper acx710
Juniper acx7100
Juniper acx7300
Juniper acx7509
Juniper junos Os Evolved
Type Values Removed Values Added
First Time appeared Juniper
Juniper junos Evolved
CPEs cpe:2.3:o:juniper:junos_evolved:*:*:*:*:*:*:*:*
Vendors & Products Juniper
Juniper junos Evolved
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description An Improper Handling of Exceptional Conditions vulnerability in the Packet Forwarding Engine (pfe) of the Juniper Networks Junos OS Evolved on ACX Series devices allows an unauthenticated, network based attacker sending specific transit protocol traffic to cause a partial Denial of Service (DoS) to downstream devices. Receipt of specific transit protocol packets is incorrectly processed by the Routing Engine (RE), filling up the DDoS protection queue which is shared between routing protocols. This influx of transit protocol packets causes DDoS protection violations, resulting in protocol flaps which can affect connectivity to networking devices. This issue affects both IPv4 and IPv6. This issue does not require any specific routing protocol to be configured or enabled. The following commands can be used to monitor the DDoS protection queue:        labuser@re0> show evo-pfemand host pkt-stats     labuser@re0> show host-path ddos all-policers This issue affects Junos OS Evolved:  * All versions before 21.4R3-S8-EVO,  * from 22.2 before 22.2R3-S4-EVO,  * from 22.3 before 22.3R3-S4-EVO,  * from 22.4 before 22.4R3-S3-EVO,  * from 23.2 before 23.2R2-EVO,  * from 23.4 before 23.4R1-S1-EVO, 23.4R2-EVO,  * from 24.2 before 24.2R2-EVO.
Title Junos OS Evolved: ACX Series: Receipt of specific transit protocol packets is incorrectly processed by the RE
Weaknesses CWE-755
References
Metrics cvssV3_1

{'score': 5.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:L/R:A'}