Juniper Junos OS MX prior 21.2R1 MS-MPC/MS-MIC denial of service

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Juniper Junos OS MX. It has been rated as critical. Affected is an unknown function of the component MS-MPC/MS-MIC. This manipulation causes denial of service. This vulnerability appears as CVE-2021-31351. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability has been found in Juniper Junos OS MX (Router Operating System) and classified as critical. Affected by this vulnerability is an unknown function of the component MS-MPC/MS-MIC. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability.

The weakness was presented 10/17/2021 with Juniper Networks as JSA11216. The advisory is shared at kb.juniper.net. This vulnerability is known as CVE-2021-31351. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

Upgrading to version 17.3R3-S12, 17.4R3-S5, 18.1R3-S13, 18.3R3-S5, 18.4R3-S8, 19.1R3-S6, 19.2R1-S7, 19.2R3-S2, 19.3R2-S6, 19.3R3-S3, 19.4R3-S3, 20.1R2-S2, 20.1R3, 20.2R3-S1, 20.3R3, 20.4R2-S1, 20.4R3, 21.1R1-S1, 21.1R2 or 21.2R1 eliminates this vulnerability.

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Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector (Juniper Networks, Inc.): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Junos OS MX 17.3R3-S12/17.4R3-S5/18.1R3-S13/18.3R3-S5/18.4R3-S8/19.1R3-S6/19.2R1-S7/19.2R3-S2/19.3R2-S6/19.3R3-S3/19.4R3-S3/20.1R2-S2/20.1R3/20.2R3-S1/20.3R3/20.4R2-S1/20.4R3/21.1R1-S1/21.1R2/21.2R1

Timelineinfo

04/15/2021 🔍
10/17/2021 +185 days 🔍
10/17/2021 +0 days 🔍
10/22/2021 +5 days 🔍

Sourcesinfo

Vendor: juniper.net

Advisory: JSA11216
Organization: Juniper Networks
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-31351 (🔍)
GCVE (CVE): GCVE-0-2021-31351
GCVE (VulDB): GCVE-100-184513

Entryinfo

Created: 10/17/2021 17:53
Updated: 10/22/2021 10:16
Changes: 10/17/2021 17:53 (40), 10/22/2021 10:10 (3), 10/22/2021 10:16 (11)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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