CVE-2020-1667
Junos OS: MX Series: Services card might restart due to a race condition when DNS filtering is enabled.
Severity Score
8.3
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
When DNS filtering is enabled on Juniper Networks Junos MX Series with one of the following cards MS-PIC, MS-MIC or MS-MPC, an incoming stream of packets processed by the Multiservices PIC Management Daemon (mspmand) process might be bypassed due to a race condition. Due to this vulnerability, mspmand process, responsible for managing "URL Filtering service", can crash, causing the Services PIC to restart. While the Services PIC is restarting, all PIC services including DNS filtering service (DNS sink holing) will be bypassed until the Services PIC completes its boot process. This issue affects Juniper Networks Junos OS: 17.3 versions prior to 17.3R3-S8; 18.3 versions prior to 18.3R3-S1; 18.4 versions prior to 18.4R3; 19.1 versions prior to 19.1R3; 19.2 versions prior to 19.2R2; 19.3 versions prior to 19.3R3. This issue does not affect Juniper Networks Junos OS 17.4, 18.1, and 18.2.
Cuando el filtrado de DNS está habilitado en Juniper Networks Junos MX Series con una de las siguientes tarjetas MS-PIC, MS-MIC o MS-MPC, un flujo entrante de paquetes procesados ??por el proceso Multiservices PIC Management Daemon (mspmand) puede ser omitido debido a una condición de carrera. Debido a esta vulnerabilidad, el proceso mspmand, responsable de administrar el "URL Filtering service", puede bloquearse y causar que el Services PIC se reinicie. Mientras Services PIC se reinicia, todos los servicios PIC, incluyendo el servicio de filtrado de DNS (hundimiento de DNS), serán omitidos hasta que el Services PIC complete su proceso de inicio. Este problema afecta a Juniper Networks Junos OS: versiones 17.3 anteriores a 17.3R3-S8; versiones 18.3 anteriores a 18.3R3-S1; versiones 18.4 anteriores a 18.4R3; versiones 19.1 anteriores a 19.1R3; versiones 19.2 anteriores a 19.2R2; versiones 19.3 anteriores a 19.3R3
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2019-11-04 CVE Reserved
- 2020-10-16 CVE Published
- 2023-07-02 EPSS Updated
- 2024-09-17 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CAPEC
References (2)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://kb.juniper.net | 2020-10-27 | |
| https://kb.juniper.net/InfoCenter/index?page=content&id=JSA11064&cat=MX_SERIES&actp=LIST | 2020-10-27 |
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" | 17.3 Search vendor "Juniper" for product "Junos" and version "17.3" | - |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.3 Search vendor "Juniper" for product "Junos" and version "17.3" | r1-s1 |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.3 Search vendor "Juniper" for product "Junos" and version "17.3" | r2 |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.3 Search vendor "Juniper" for product "Junos" and version "17.3" | r2-s1 |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.3 Search vendor "Juniper" for product "Junos" and version "17.3" | r2-s2 |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.3 Search vendor "Juniper" for product "Junos" and version "17.3" | r2-s3 |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.3 Search vendor "Juniper" for product "Junos" and version "17.3" | r2-s4 |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.3 Search vendor "Juniper" for product "Junos" and version "17.3" | r2-s5 |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.3 Search vendor "Juniper" for product "Junos" and version "17.3" | r3 |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.3 Search vendor "Juniper" for product "Junos" and version "17.3" | r3-s1 |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.3 Search vendor "Juniper" for product "Junos" and version "17.3" | r3-s2 |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.3 Search vendor "Juniper" for product "Junos" and version "17.3" | r3-s3 |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.3 Search vendor "Juniper" for product "Junos" and version "17.3" | r3-s4 |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 17.3 Search vendor "Juniper" for product "Junos" and version "17.3" | r3-s7 |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 18.3 Search vendor "Juniper" for product "Junos" and version "18.3" | - |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 18.3 Search vendor "Juniper" for product "Junos" and version "18.3" | r1 |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 18.3 Search vendor "Juniper" for product "Junos" and version "18.3" | r1-s1 |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 18.3 Search vendor "Juniper" for product "Junos" and version "18.3" | r1-s2 |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 18.3 Search vendor "Juniper" for product "Junos" and version "18.3" | r1-s3 |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 18.3 Search vendor "Juniper" for product "Junos" and version "18.3" | r1-s5 |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 18.3 Search vendor "Juniper" for product "Junos" and version "18.3" | r1-s6 |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 18.3 Search vendor "Juniper" for product "Junos" and version "18.3" | r2 |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 18.3 Search vendor "Juniper" for product "Junos" and version "18.3" | r2-s1 |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 18.3 Search vendor "Juniper" for product "Junos" and version "18.3" | r2-s2 |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 18.3 Search vendor "Juniper" for product "Junos" and version "18.3" | r2-s3 |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 18.3 Search vendor "Juniper" for product "Junos" and version "18.3" | r3 |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 18.4 Search vendor "Juniper" for product "Junos" and version "18.4" | - |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 18.4 Search vendor "Juniper" for product "Junos" and version "18.4" | r1 |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 18.4 Search vendor "Juniper" for product "Junos" and version "18.4" | r1-s1 |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 18.4 Search vendor "Juniper" for product "Junos" and version "18.4" | r1-s2 |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 18.4 Search vendor "Juniper" for product "Junos" and version "18.4" | r1-s5 |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 18.4 Search vendor "Juniper" for product "Junos" and version "18.4" | r1-s6 |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 18.4 Search vendor "Juniper" for product "Junos" and version "18.4" | r2 |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 18.4 Search vendor "Juniper" for product "Junos" and version "18.4" | r2-s1 |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 18.4 Search vendor "Juniper" for product "Junos" and version "18.4" | r2-s2 |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 18.4 Search vendor "Juniper" for product "Junos" and version "18.4" | r2-s3 |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 18.4 Search vendor "Juniper" for product "Junos" and version "18.4" | r2-s4 |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 19.1 Search vendor "Juniper" for product "Junos" and version "19.1" | - |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 19.1 Search vendor "Juniper" for product "Junos" and version "19.1" | r1 |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 19.1 Search vendor "Juniper" for product "Junos" and version "19.1" | r1-s1 |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 19.1 Search vendor "Juniper" for product "Junos" and version "19.1" | r1-s2 |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 19.1 Search vendor "Juniper" for product "Junos" and version "19.1" | r1-s3 |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 19.1 Search vendor "Juniper" for product "Junos" and version "19.1" | r1-s4 |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 19.1 Search vendor "Juniper" for product "Junos" and version "19.1" | r2 |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 19.1 Search vendor "Juniper" for product "Junos" and version "19.1" | r2-s1 |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 19.2 Search vendor "Juniper" for product "Junos" and version "19.2" | - |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 19.2 Search vendor "Juniper" for product "Junos" and version "19.2" | r1 |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 19.2 Search vendor "Juniper" for product "Junos" and version "19.2" | r1-s1 |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 19.2 Search vendor "Juniper" for product "Junos" and version "19.2" | r1-s2 |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 19.2 Search vendor "Juniper" for product "Junos" and version "19.2" | r1-s3 |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 19.3 Search vendor "Juniper" for product "Junos" and version "19.3" | - |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 19.3 Search vendor "Juniper" for product "Junos" and version "19.3" | r1 |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 19.3 Search vendor "Juniper" for product "Junos" and version "19.3" | r1-s1 |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 19.3 Search vendor "Juniper" for product "Junos" and version "19.3" | r2 |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 19.3 Search vendor "Juniper" for product "Junos" and version "19.3" | r2-s1 |
Affected
| ||||||
| Juniper Search vendor "Juniper" | Junos Search vendor "Juniper" for product "Junos" | 19.3 Search vendor "Juniper" for product "Junos" and version "19.3" | r2-s2 |
Affected
| ||||||