CVE-2024-39556

Junos OS and Junos OS Evolved: Loading a malicious certificate from the CLI may result in a stack-based overflow

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 Stack-Based Buffer Overflow vulnerability in Juniper Networks Junos OS and Juniper Networks Junos OS Evolved may allow a local, low-privileged attacker with access to the CLI the ability to load a malicious certificate file, leading to a limited Denial of Service (DoS) or privileged code execution.

By exploiting the 'set security certificates' command with a crafted certificate file, a malicious attacker with access to the CLI could cause a crash of the command management daemon (mgd), limited to the local user's command interpreter, or potentially trigger a stack-based buffer overflow.

This issue affects:

Junos OS:

* All versions before 21.4R3-S7,
* from 22.1 before 22.1R3-S6,
* from 22.2 before 22.2R3-S4,
* from 22.3 before 22.3R3-S3,
* from 22.4 before 22.4R3-S2,
* from 23.2 before 23.2R2,
* from 23.4 before 23.4R1-S1, 23.4R2;

Junos OS Evolved:

* All versions before 21.4R3-S7-EVO,
* from 22.1-EVO before 22.1R3-S6-EVO,
* from 22.2-EVO before 22.2R3-S4-EVO,
* from 22.3-EVO before 22.3R3-S3-EVO,
* from 22.4-EVO before 22.4R3-S2-EVO,
* from 23.2-EVO before 23.2R2-EVO,
* from 23.4-EVO before 23.4R1-S1-EVO, 23.4R2-EVO.

Una vulnerabilidad de desbordamiento de búfer basado en pila en Juniper Networks Junos OS y Juniper Networks Junos OS Evolved puede permitir que un atacante local con pocos privilegios y acceso a la CLI tenga la capacidad de cargar un archivo de certificado malicioso, lo que lleva a una denegación de servicio (DoS) limitada. ) o ejecución de código privilegiado. Al explotar el comando 'set security certificates' con un archivo de certificado manipulado, un atacante malintencionado con acceso a la CLI podría provocar un fallo del daemon de administración de comandos (mgd), limitado al intérprete de comandos del usuario local, o potencialmente desencadenar un desbordamiento de búfer en la región stack de la memoria. Este problema afecta a: Junos OS: * Todas las versiones anteriores a 21.4R3-S7, * desde 22.1 anterior a 22.1R3-S6, * desde 22.2 anterior a 22.2R3-S4, * desde 22.3 anterior a 22.3R3-S3, * desde 22.4 anterior a 22.4R3- S2, * de 23.2 antes de 23.2R2, * de 23.4 antes de 23.4R1-S1, 23.4R2; Junos OS Evolved: * Todas las versiones anteriores a 21.4R3-S7-EVO, * desde 22.1-EVO antes de 22.1R3-S6-EVO, * desde 22.2-EVO antes de 22.2R3-S4-EVO, * desde 22.3-EVO antes de 22.3R3- S3-EVO, * desde 22.4-EVO antes de 22.4R3-S2-EVO, * desde 23.2-EVO antes de 23.2R2-EVO, * desde 23.4-EVO antes de 23.4R1-S1-EVO, 23.4R2-EVO.

*Credits: N/A

Attack Vector

Local

Attack Complexity

High

Attack Requirements

Present

Privileges Required

High

User Interaction

None

System

Vulnerable | Subsequent

Confidentiality

High

None

Integrity

High

None

Availability

High

None

Attack Vector

Local

Attack Complexity

High

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:Track*

Exploitation

None

Automatable

Tech. Impact

Total

* 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-121: Stack-based Buffer Overflow

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://supportportal.juniper.net/JSA83016	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 Search vendor "Juniper Networks" for product "Junos OS"				< 21.4R3-S7 Search vendor "Juniper Networks" for product "Junos OS" and version " < 21.4R3-S7"		en		Affected
Juniper Networks Search vendor "Juniper Networks"		Junos OS Search vendor "Juniper Networks" for product "Junos OS"				>= 22.1 < 22.1R3-S6 Search vendor "Juniper Networks" for product "Junos OS" and version " >= 22.1 < 22.1R3-S6"		en		Affected
Juniper Networks Search vendor "Juniper Networks"		Junos OS Search vendor "Juniper Networks" for product "Junos OS"				>= 22.2 < 22.2R3-S4 Search vendor "Juniper Networks" for product "Junos OS" and version " >= 22.2 < 22.2R3-S4"		en		Affected
Juniper Networks Search vendor "Juniper Networks"		Junos OS Search vendor "Juniper Networks" for product "Junos OS"				>= 22.3 < 22.3R3-S3 Search vendor "Juniper Networks" for product "Junos OS" and version " >= 22.3 < 22.3R3-S3"		en		Affected
Juniper Networks Search vendor "Juniper Networks"		Junos OS Search vendor "Juniper Networks" for product "Junos OS"				>= 22.4 < 22.4R3-S2 Search vendor "Juniper Networks" for product "Junos OS" and version " >= 22.4 < 22.4R3-S2"		en		Affected
Juniper Networks Search vendor "Juniper Networks"		Junos OS Search vendor "Juniper Networks" for product "Junos OS"				>= 23.2 < 23.2R2 Search vendor "Juniper Networks" for product "Junos OS" and version " >= 23.2 < 23.2R2"		en		Affected
Juniper Networks Search vendor "Juniper Networks"		Junos OS Search vendor "Juniper Networks" for product "Junos OS"				>= 23.4 < 23.4R1-S1 Search vendor "Juniper Networks" for product "Junos OS" and version " >= 23.4 < 23.4R1-S1"		en		Affected
Juniper Networks Search vendor "Juniper Networks"		Junos OS Search vendor "Juniper Networks" for product "Junos OS"				>= 23.4 < 23.4R2 Search vendor "Juniper Networks" for product "Junos OS" and version " >= 23.4 < 23.4R2"		en		Affected
Juniper Networks Search vendor "Juniper Networks"		Junos OS Evolved Search vendor "Juniper Networks" for product "Junos OS Evolved"				< 21.4R3-S7-EVO Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " < 21.4R3-S7-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-S6-EVO Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " >= 22.1-EVO < 22.1R3-S6-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-S4-EVO Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " >= 22.2-EVO < 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-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-S2-EVO Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " >= 22.4-EVO < 22.4R3-S2-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
Juniper Networks Search vendor "Juniper Networks"		Junos OS Evolved Search vendor "Juniper Networks" for product "Junos OS Evolved"				>= 23.4-EVO < 23.4R1-S1-EVO Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " >= 23.4-EVO < 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-EVO < 23.4R2-EVO Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " >= 23.4-EVO < 23.4R2-EVO"		en		Affected