CVE-2021-0276

Steel-Belted Radius Carrier Edition: Remote code execution vulnerability when EAP Authentication is configured.

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A stack-based Buffer Overflow vulnerability in Juniper Networks SBR Carrier with EAP (Extensible Authentication Protocol) authentication configured, allows an attacker sending specific packets causing the radius daemon to crash resulting with a Denial of Service (DoS) or leading to remote code execution (RCE). By continuously sending this specific packets, an attacker can repeatedly crash the radius daemon, causing a sustained Denial of Service (DoS). This issue affects Juniper Networks SBR Carrier: 8.4.1 versions prior to 8.4.1R19; 8.5.0 versions prior to 8.5.0R10; 8.6.0 versions prior to 8.6.0R4.

Una vulnerabilidad de Desbordamiento del Búfer en la región stack de la memoria en Juniper Networks SBR Carrier con la autenticación EAP (Extensible Authentication Protocol) configurada, permite a un atacante enviar paquetes específicos causando el bloqueo del demonio radius, resultando en una Denegación de Servicio (DoS) o conllevando a una ejecución de código remota (RCE). Al enviar continuamente estos paquetes específicos, un atacante puede bloquear repetidamente el daemon radius, causando una Denegación de Servicio (DoS) sostenida. Este problema afecta a Juniper Networks SBR Carrier: versiones 8.4.1 anteriores a 8.4.1R19; versiones 8.5.0 anteriores a 8.5.0R10; versiones 8.6.0 anteriores a 8.6.0R4

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-10-27 CVE Reserved
2021-07-15 CVE Published
2024-06-19 EPSS Updated
2024-09-16 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-121: Stack-based Buffer Overflow
CWE-787: Out-of-bounds Write

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://kb.juniper.net/JSA11180	2022-08-05

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Juniper Search vendor "Juniper"		Steel-belted Radius Carrier Search vendor "Juniper" for product "Steel-belted Radius Carrier"				8.4.1 Search vendor "Juniper" for product "Steel-belted Radius Carrier" and version "8.4.1"		-		Affected
Juniper Search vendor "Juniper"		Steel-belted Radius Carrier Search vendor "Juniper" for product "Steel-belted Radius Carrier"				8.4.1 Search vendor "Juniper" for product "Steel-belted Radius Carrier" and version "8.4.1"		r13		Affected
Juniper Search vendor "Juniper"		Steel-belted Radius Carrier Search vendor "Juniper" for product "Steel-belted Radius Carrier"				8.5.0 Search vendor "Juniper" for product "Steel-belted Radius Carrier" and version "8.5.0"		-		Affected
Juniper Search vendor "Juniper"		Steel-belted Radius Carrier Search vendor "Juniper" for product "Steel-belted Radius Carrier"				8.5.0 Search vendor "Juniper" for product "Steel-belted Radius Carrier" and version "8.5.0"		r4		Affected
Juniper Search vendor "Juniper"		Steel-belted Radius Carrier Search vendor "Juniper" for product "Steel-belted Radius Carrier"				8.6.0 Search vendor "Juniper" for product "Steel-belted Radius Carrier" and version "8.6.0"		-		Affected