CVE-2024-30387

Junos OS: ACX5448 & ACX710: Due to interface flaps the PFE process can crash

Severity Score

7.1

*CVSS v4

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

A Missing Synchronization vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on ACX5448 and ACX710 allows an unauthenticated, adjacent attacker to cause a Denial-of-Service (DoS).

If an interface flaps while the system gathers statistics on that interface, two processes simultaneously access a shared resource which leads to a PFE crash and restart.

This issue affects Junos OS:

* All versions before 20.4R3-S9,
* 21.2 versions before 21.2R3-S5,
* 21.3 versions before 21.3R3-S5,
* 21.4 versions before 21.4R3-S4,
* 22.1 versions before 22.1R3-S2,
* 22.2 versions before 22.2R3-S2,
* 22.3 versions before 22.3R2-S2, 22.3R3,
* 22.4 versions before 22.4R2.

Una vulnerabilidad de falta de sincronización en el motor de reenvío de paquetes (PFE) de Juniper Networks Junos OS en ACX5448 y ACX710 permite que un atacante adyacente no autenticado provoque una denegación de servicio (DoS). Si una interfaz parpadea mientras el sistema recopila estadísticas sobre esa interfaz, dos procesos acceden simultáneamente a un recurso compartido, lo que provoca un bloqueo y reinicio del PFE. Este problema afecta a Junos OS: todas las versiones anteriores a 20.4R3-S9, versiones 21.2 anteriores a 21.2R3-S5, versiones 21.3 anteriores a 21.3R3-S5, versiones 21.4 anteriores a 21.4R3-S4, versiones 22.1 anteriores a 22.1R3-S2, versiones 22.2 anteriores a 22.2 R3-S2, versiones 22.3 anteriores a 22.3R2-S2, 22.3R3, versiones 22.4 anteriores a 22.4R2.

*Credits: N/A

Attack Vector

Adjacent

Attack Complexity

Low

Attack Requirements

None

Privileges Required

None

User Interaction

None

System

Vulnerable | Subsequent

Confidentiality

None

Integrity

None

Availability

High

Low

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2024-03-26 CVE Reserved
2024-04-12 CVE Published
2024-04-21 EPSS Updated
2024-08-02 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-820: Missing Synchronization

CAPEC

References (2)

URL	Tag	Source
https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L	Technical Description

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://supportportal.juniper.net/JSA79187	2024-05-16

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 Search vendor "Juniper Networks" for product "Junos OS"				< 20.4R3-S9 Search vendor "Juniper Networks" for product "Junos OS" and version " < 20.4R3-S9"		en		Affected
Juniper Networks Search vendor "Juniper Networks"		Junos OS Search vendor "Juniper Networks" for product "Junos OS"				>= 21.2 < 21.2R3-S5 Search vendor "Juniper Networks" for product "Junos OS" and version " >= 21.2 < 21.2R3-S5"		en		Affected
Juniper Networks Search vendor "Juniper Networks"		Junos OS Search vendor "Juniper Networks" for product "Junos OS"				>= 21.3 < 21.3R3-S5 Search vendor "Juniper Networks" for product "Junos OS" and version " >= 21.3 < 21.3R3-S5"		en		Affected
Juniper Networks Search vendor "Juniper Networks"		Junos OS Search vendor "Juniper Networks" for product "Junos OS"				>= 21.4 < 21.4R3-S4 Search vendor "Juniper Networks" for product "Junos OS" and version " >= 21.4 < 21.4R3-S4"		en		Affected
Juniper Networks Search vendor "Juniper Networks"		Junos OS Search vendor "Juniper Networks" for product "Junos OS"				>= 22.1 < 22.1R3-S2 Search vendor "Juniper Networks" for product "Junos OS" and version " >= 22.1 < 22.1R3-S2"		en		Affected
Juniper Networks Search vendor "Juniper Networks"		Junos OS Search vendor "Juniper Networks" for product "Junos OS"				>= 22.2 < 22.2R3-S2 Search vendor "Juniper Networks" for product "Junos OS" and version " >= 22.2 < 22.2R3-S2"		en		Affected
Juniper Networks Search vendor "Juniper Networks"		Junos OS Search vendor "Juniper Networks" for product "Junos OS"				>= 22.3 < 22.3R2-S2 Search vendor "Juniper Networks" for product "Junos OS" and version " >= 22.3 < 22.3R2-S2"		en		Affected
Juniper Networks Search vendor "Juniper Networks"		Junos OS Search vendor "Juniper Networks" for product "Junos OS"				>= 22.3 < 22.3R3 Search vendor "Juniper Networks" for product "Junos OS" and version " >= 22.3 < 22.3R3"		en		Affected
Juniper Networks Search vendor "Juniper Networks"		Junos OS Search vendor "Juniper Networks" for product "Junos OS"				>= 22.4 < 22.4R2 Search vendor "Juniper Networks" for product "Junos OS" and version " >= 22.4 < 22.4R2"		en		Affected
Juniper Networks Search vendor "Juniper Networks"		Junos OS Search vendor "Juniper Networks" for product "Junos OS"				>= 22.4 < 22.4R3 Search vendor "Juniper Networks" for product "Junos OS" and version " >= 22.4 < 22.4R3"		en		Affected