CVE-2019-0039

Junos OS: Login credentials are vulnerable to brute force attacks through the REST API

Severity Score

8.1

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

If REST API is enabled, the Junos OS login credentials are vulnerable to brute force attacks. The high default connection limit of the REST API may allow an attacker to brute-force passwords using advanced scripting techniques. Additionally, administrators who do not enforce a strong password policy can increase the likelihood of success from brute force attacks. Affected releases are Juniper Networks Junos OS: 14.1X53 versions prior to 14.1X53-D49; 15.1 versions prior to 15.1F6-S12, 15.1R7-S3; 15.1X49 versions prior to 15.1X49-D160; 15.1X53 versions prior to 15.1X53-D236, 15.1X53-D495, 15.1X53-D591, 15.1X53-D69; 16.1 versions prior to 16.1R3-S10, 16.1R4-S12, 16.1R6-S6, 16.1R7-S3; 16.1X65 versions prior to 16.1X65-D49; 16.2 versions prior to 16.2R2-S7; 17.1 versions prior to 17.1R2-S10, 17.1R3; 17.2 versions prior to 17.2R1-S8, 17.2R3-S1; 17.3 versions prior to 17.3R3-S2; 17.4 versions prior to 17.4R1-S6, 17.4R2-S2; 18.1 versions prior to 18.1R2-S4, 18.1R3-S1; 18.2 versions prior to 18.2R1-S5; 18.2X75 versions prior to 18.2X75-D30; 18.3 versions prior to 18.3R1-S1.

Si la API REST está activada, las credenciales de inicio de sesión en Junos OS son vulnerables a los ataques por fuerza bruta. El alto límite de conexiones por defecto en la API REST, puede permitir que un atacante aplique fuerza bruta a las contraseñas mediante técnicas avanzadas de secuencias de comandos. Además, los administradores que utilizan una política de contraseñas seguras, tienen mayores probabilidades de que los ataques por fuerza bruta tenga éxito. Las versiones afectadas son Juniper Networks Junos OS: Versiones 14.1X53 anteriores a 14.1X53-D49; versiones 15.1 anteriores a 15.1F6-S12, 15.1R7-S3; versiones 15.1X49 anteriores a 15.1X49-D160; versiones 15.1X53 anteriores a 15.1X53-D236, 15.1X53-D495, 15.1X53-D591, 15.1X53-D69; 16.1 versiones anteriores a 16.1R3-S10, 16.1R4-S12, 16.1R6-S6, 16.1R7-S3; 16.1X65 versiones anteriores a 16.1X65-D49; 16.2 versiones anteriores a 16.2R2-S7; 17.1 versiones anteriores a 17.1R2-S10, 17.1R3; 17.2 versiones anteriores a 17.2R1-S8, 17.2R3-S1; 17.3 versiones anteriores a 17.3R3-S2; 17.4 versiones anteriores a 17.4R1-S6, 17.4R2-S2; versiones 18.1 anteriores a 18.1R2-S4, 18.1R3-S1; versiones 18.2 anteriores a 18.2R1-S5; versiones 18.2X75 anteriores a 18.2X75-D30 y versiones 18.3 anteriores a 18.3R1-S1.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2018-10-11 CVE Reserved
2019-04-10 CVE Published
2024-08-31 EPSS Updated
2024-09-16 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-307: Improper Restriction of Excessive Authentication Attempts

CAPEC

References (2)

URL	Tag	Source
http://www.securityfocus.com/bid/107899	Broken Link

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://kb.juniper.net/JSA10928	2024-02-09

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"				>= 14.1x53 < 14.1x53-d49 Search vendor "Juniper" for product "Junos" and version " >= 14.1x53 < 14.1x53-d49"		-		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				>= 15.1 < 15.1f6-s12 Search vendor "Juniper" for product "Junos" and version " >= 15.1 < 15.1f6-s12"		-		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				>= 15.1x49 < 15.1x49-d160 Search vendor "Juniper" for product "Junos" and version " >= 15.1x49 < 15.1x49-d160"		-		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				>= 15.1x53 < 15.1x53-d236 Search vendor "Juniper" for product "Junos" and version " >= 15.1x53 < 15.1x53-d236"		-		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				>= 16.1 < 16.1r3-s10 Search vendor "Juniper" for product "Junos" and version " >= 16.1 < 16.1r3-s10"		-		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				>= 16.1x65 < 16.1x65-d49 Search vendor "Juniper" for product "Junos" and version " >= 16.1x65 < 16.1x65-d49"		-		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				>= 16.2 < 16.2r2-s7 Search vendor "Juniper" for product "Junos" and version " >= 16.2 < 16.2r2-s7"		-		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				>= 17.1 < 17.1r2-s10 Search vendor "Juniper" for product "Junos" and version " >= 17.1 < 17.1r2-s10"		-		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				>= 17.2 < 17.2r1-s8 Search vendor "Juniper" for product "Junos" and version " >= 17.2 < 17.2r1-s8"		-		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				>= 17.3 < 17.3r3-s2 Search vendor "Juniper" for product "Junos" and version " >= 17.3 < 17.3r3-s2"		-		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				>= 17.4 < 17.4r1-s6 Search vendor "Juniper" for product "Junos" and version " >= 17.4 < 17.4r1-s6"		-		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				>= 18.1 < 18.1r2-s4 Search vendor "Juniper" for product "Junos" and version " >= 18.1 < 18.1r2-s4"		-		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				>= 18.2 < 18.2r1-s5 Search vendor "Juniper" for product "Junos" and version " >= 18.2 < 18.2r1-s5"		-		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				>= 18.2x75 < 18.2x75-d30 Search vendor "Juniper" for product "Junos" and version " >= 18.2x75 < 18.2x75-d30"		-		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				>= 18.3 < 18.3r1-s1 Search vendor "Juniper" for product "Junos" and version " >= 18.3 < 18.3r1-s1"		-		Affected