CVE-2022-22233

Junos OS and Junos OS Evolved: In an SR to LDP interworking scenario, with SRMS, when a specific low privileged command is issued on an ABR rpd will crash

Severity Score

5.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An Unchecked Return Value to NULL Pointer Dereference vulnerability in Routing Protocol Daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a locally authenticated attacker with low privileges to cause a Denial of Service (DoS). In Segment Routing (SR) to Label Distribution Protocol (LDP) interworking scenario, configured with Segment Routing Mapping Server (SRMS) at any node, when an Area Border Router (ABR) leaks the SRMS entries having "S" flag set from IS-IS Level 2 to Level 1, an rpd core might be observed when a specific low privileged CLI command is issued. This issue affects: Juniper Networks Junos OS 21.4 versions prior to 21.4R1-S2, 21.4R2-S1, 21.4R3; 22.1 versions prior to 22.1R2. Juniper Networks Junos OS Evolved 21.4-EVO versions prior to 21.4R1-S2-EVO, 21.4R2-S1-EVO, 21.4R3-EVO; 22.1-EVO versions prior to 22.1R2-EVO. This issue does not affect: Juniper Networks Junos OS versions prior to 21.4R1. Juniper Networks Junos OS Evolved versions prior to 21.4R1-EVO.

Una vulnerabilidad de Desreferencia de Valor de Retorno a Puntero NULL no Comprobada en Routing Protocol Daemon (rpd) de Juniper Networks Junos OS y Junos OS Evolved permite a un atacante autenticado localmente con bajos privilegios causar una Denegación de Servicio (DoS). En el escenario de Inter funcionamiento de Segment Routing (SR) a Label Distribution Protocol (LDP), configurado con Segment Routing Mapping Server (SRMS) en cualquier nodo, cuando un Area Border Router (ABR) filtra las entradas de SRMS que presentan el flag "S" definida de IS-IS Nivel 2 a Nivel 1, podría observarse un núcleo de rpd cuando es emitido un comando CLI específico poco privilegiado. Este problema afecta a: Juniper Networks Junos OS 21.4 versiones anteriores a 21.4R1-S2, 21.4R2-S1, 21.4R3; 22.1 versiones anteriores a 22.1R2. Juniper Networks Junos OS Evolved 21.4-EVO versiones anteriores a 21.4R1-S2-EVO, 21.4R2-S1-EVO, 21.4R3-EVO; 22.1-EVO versiones anteriores a 22.1R2-EVO. Este problema no afecta a: Juniper Networks Junos OS versiones anteriores a 21.4R1. Las versiones del sistema operativo Junos Evolved de Juniper Networks anteriores a 21.4R1-EVO

*Credits: N/A

CVSS Scores

NISTv3.1 5.5

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:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-12-21 CVE Reserved
2022-10-18 CVE Published
2024-05-04 EPSS Updated
2024-09-16 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-252: Unchecked Return Value
CWE-690: Unchecked Return Value to NULL Pointer Dereference

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://kb.juniper.net/JSA69887	2023-06-27

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				21.4 Search vendor "Juniper" for product "Junos" and version "21.4"		-		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				21.4 Search vendor "Juniper" for product "Junos" and version "21.4"		r1		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				21.4 Search vendor "Juniper" for product "Junos" and version "21.4"		r1-s1		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				21.4 Search vendor "Juniper" for product "Junos" and version "21.4"		r2		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				22.1 Search vendor "Juniper" for product "Junos" and version "22.1"		r1		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				22.1 Search vendor "Juniper" for product "Junos" and version "22.1"		r1-s1		Affected
Juniper Search vendor "Juniper"		Junos Os Evolved Search vendor "Juniper" for product "Junos Os Evolved"				21.4 Search vendor "Juniper" for product "Junos Os Evolved" and version "21.4"		-		Affected
Juniper Search vendor "Juniper"		Junos Os Evolved Search vendor "Juniper" for product "Junos Os Evolved"				21.4 Search vendor "Juniper" for product "Junos Os Evolved" and version "21.4"		r1		Affected
Juniper Search vendor "Juniper"		Junos Os Evolved Search vendor "Juniper" for product "Junos Os Evolved"				21.4 Search vendor "Juniper" for product "Junos Os Evolved" and version "21.4"		r1-s1		Affected
Juniper Search vendor "Juniper"		Junos Os Evolved Search vendor "Juniper" for product "Junos Os Evolved"				21.4 Search vendor "Juniper" for product "Junos Os Evolved" and version "21.4"		r2		Affected
Juniper Search vendor "Juniper"		Junos Os Evolved Search vendor "Juniper" for product "Junos Os Evolved"				22.1 Search vendor "Juniper" for product "Junos Os Evolved" and version "22.1"		r1		Affected