CVE-2024-39513

Junos OS Evolved: Execution of a specific CLI command will cause a crash in the AFT manager

Severity Score

6.8

*CVSS v4

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

An Improper Input Validation vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS Evolved allows a local, low-privileged attacker to cause a Denial of Service (DoS).

When a specific "clear" command is run, the Advanced Forwarding Toolkit manager (evo-aftmand-bt or evo-aftmand-zx) crashes and restarts.

The crash impacts all traffic going through the FPCs, causing a DoS. Running the command repeatedly leads to a sustained DoS condition.
This issue affects Junos OS Evolved:

* All versions before 20.4R3-S9-EVO,
* from 21.2-EVO before 21.2R3-S7-EVO,
* from 21.3-EVO before 21.3R3-S5-EVO,
* from 21.4-EVO before 21.4R3-S6-EVO,
* from 22.1-EVO before 22.1R3-S4-EVO,
* from 22.2-EVO before 22.2R3-S3-EVO,
* from 22.3-EVO before 22.3R3-S3-EVO,
* from 22.4-EVO before 22.4R3-EVO,
* from 23.2-EVO before 23.2R2-EVO.

Una vulnerabilidad de validación de entrada incorrecta en el Packet Forwarding Engine (PFE) de Juniper Networks Junos OS Evolved permite que un atacante local con pocos privilegios provoque una denegación de servicio (DoS). Cuando se ejecuta un comando "clear" específico, el administrador del kit de herramientas de reenvío avanzado (evo-aftmand-bt o evo-aftmand-zx) falla y se reinicia. El bloqueo afecta a todo el tráfico que pasa por los FPC y provoca un DoS. La ejecución repetida del comando conduce a una condición DoS sostenida. Este problema afecta a Junos OS Evolved: * Todas las versiones anteriores a 20.4R3-S9-EVO, * desde 21.2-EVO anteriores a 21.2R3-S7-EVO, * desde 21.3-EVO anteriores a 21.3R3-S5-EVO, * desde 21.4-EVO anteriores 21.4R3-S6-EVO, * de 22.1-EVO antes de 22.1R3-S4-EVO, * de 22.2-EVO antes de 22.2R3-S3-EVO, * de 22.3-EVO antes de 22.3R3-S3-EVO, * de 22.4- EVO anterior a 22.4R3-EVO, * desde 23.2-EVO anterior a 23.2R2-EVO.

*Credits: N/A

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Attack Requirements

None

Privileges Required

Low

User Interaction

None

System

Vulnerable | Subsequent

Confidentiality

None

Integrity

None

Availability

High

None

Attack Vector

Local

Attack Complexity

Low

Attack Requirements

None

Privileges Required

Low

User Interaction

None

System

Vulnerable | Subsequent

Confidentiality

None

Integrity

None

Availability

High

None

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

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

2024-06-25 CVE Reserved
2024-07-10 CVE Published
2024-07-11 EPSS Updated
2024-08-02 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://supportportal.juniper.net/JSA82978	2024-07-11

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"				< 20.4R3-S9-EVO Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " < 20.4R3-S9-EVO"		en		Affected
Juniper Networks Search vendor "Juniper Networks"		Junos OS Evolved Search vendor "Juniper Networks" for product "Junos OS Evolved"				>= 21.2-EVO < 21.2R3-S7-EVO Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " >= 21.2-EVO < 21.2R3-S7-EVO"		en		Affected
Juniper Networks Search vendor "Juniper Networks"		Junos OS Evolved Search vendor "Juniper Networks" for product "Junos OS Evolved"				>= 21.3-EVO < 21.3R3-S5-EVO Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " >= 21.3-EVO < 21.3R3-S5-EVO"		en		Affected
Juniper Networks Search vendor "Juniper Networks"		Junos OS Evolved Search vendor "Juniper Networks" for product "Junos OS Evolved"				>= 21.4-EVO < 21.4R3-S6-EVO Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " >= 21.4-EVO < 21.4R3-S6-EVO"		en		Affected
Juniper Networks Search vendor "Juniper Networks"		Junos OS Evolved Search vendor "Juniper Networks" for product "Junos OS Evolved"				>= 22.1-EVO < 22.1R3-S4-EVO Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " >= 22.1-EVO < 22.1R3-S4-EVO"		en		Affected
Juniper Networks Search vendor "Juniper Networks"		Junos OS Evolved Search vendor "Juniper Networks" for product "Junos OS Evolved"				>= 22.2-EVO < 22.2R3-S3-EVO Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " >= 22.2-EVO < 22.2R3-S3-EVO"		en		Affected
Juniper Networks Search vendor "Juniper Networks"		Junos OS Evolved Search vendor "Juniper Networks" for product "Junos OS Evolved"				>= 22.3-EVO < 22.3R3-S3-EVO Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " >= 22.3-EVO < 22.3R3-S3-EVO"		en		Affected
Juniper Networks Search vendor "Juniper Networks"		Junos OS Evolved Search vendor "Juniper Networks" for product "Junos OS Evolved"				>= 22.4-EVO < 22.4R3-EVO Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " >= 22.4-EVO < 22.4R3-EVO"		en		Affected
Juniper Networks Search vendor "Juniper Networks"		Junos OS Evolved Search vendor "Juniper Networks" for product "Junos OS Evolved"				>= 23.2-EVO < 23.2R2-EVO Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " >= 23.2-EVO < 23.2R2-EVO"		en		Affected