CVE-2024-47489

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

Severity Score

6.9

*CVSS v4

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Attend

*SSVC

Descriptions

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.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Attack Requirements

None

Privileges Required

None

User Interaction

None

System

Vulnerable | Subsequent

Confidentiality

None

Integrity

Low

None

Availability

None

Low

Attack Vector

Network

Attack Complexity

Low

Attack Requirements

None

Privileges Required

None

User Interaction

None

System

Vulnerable | Subsequent

Confidentiality

None

Integrity

Low

None

Availability

None

Low

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

None

Integrity

None

Availability

Low

* Common Vulnerability Scoring System

SSVC

Decision:Attend

Exploitation

None

Automatable

Yes

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2024-09-25 CVE Reserved
2024-10-11 CVE Published
2024-10-11 CVE Updated
2024-10-12 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-755: Improper Handling of Exceptional Conditions

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://supportportal.juniper.net	2024-10-11

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Juniper Networks Search vendor "Juniper Networks"		Junos OS Evolved Search vendor "Juniper Networks" for product "Junos OS Evolved"				< 21.4R3-S8-EVO Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " < 21.4R3-S8-EVO"		en		Affected
Juniper Networks Search vendor "Juniper Networks"		Junos OS Evolved Search vendor "Juniper Networks" for product "Junos OS Evolved"				>= 22.2 < 22.2R3-S4-EVO Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " >= 22.2 < 22.2R3-S4-EVO"		en		Affected
Juniper Networks Search vendor "Juniper Networks"		Junos OS Evolved Search vendor "Juniper Networks" for product "Junos OS Evolved"				>= 22.3 < 22.3R3-S4-EVO Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " >= 22.3 < 22.3R3-S4-EVO"		en		Affected
Juniper Networks Search vendor "Juniper Networks"		Junos OS Evolved Search vendor "Juniper Networks" for product "Junos OS Evolved"				>= 22.4 < 22.4R3-S3-EVO Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " >= 22.4 < 22.4R3-S3-EVO"		en		Affected
Juniper Networks Search vendor "Juniper Networks"		Junos OS Evolved Search vendor "Juniper Networks" for product "Junos OS Evolved"				>= 23.2 < 23.2R2-EVO Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " >= 23.2 < 23.2R2-EVO"		en		Affected
Juniper Networks Search vendor "Juniper Networks"		Junos OS Evolved Search vendor "Juniper Networks" for product "Junos OS Evolved"				>= 23.4 < 23.4R1-S1-EVO Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " >= 23.4 < 23.4R1-S1-EVO"		en		Affected
Juniper Networks Search vendor "Juniper Networks"		Junos OS Evolved Search vendor "Juniper Networks" for product "Junos OS Evolved"				>= 23.4 < 23.4R2-EVO Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " >= 23.4 < 23.4R2-EVO"		en		Affected
Juniper Networks Search vendor "Juniper Networks"		Junos OS Evolved Search vendor "Juniper Networks" for product "Junos OS Evolved"				>= 24.2 < 24.2R2-EVO Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " >= 24.2 < 24.2R2-EVO"		en		Affected