VDB-173750 · CVE-2021-0233 · JSA11128

Juniper Junos OS up to 17.4R3-S1 on ACX500/ACX4000 Forwarding Engine Board resource consumption

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.1	$0-$5k	0.00

Summaryinfo

A vulnerability labeled as problematic has been found in Juniper Junos OS up to 17.4R3-S1 on ACX500/ACX4000. Impacted is an unknown function of the component Forwarding Engine Board. Such manipulation leads to resource consumption. This vulnerability is referenced as CVE-2021-0233. It is possible to launch the attack remotely. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Juniper Junos OS up to 17.4R3-S1 on ACX500/ACX4000 (Router Operating System) and classified as problematic. Affected by this issue is an unknown part of the component Forwarding Engine Board. The manipulation with an unknown input leads to a resource consumption vulnerability. Using CWE to declare the problem leads to CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. Impacted is availability.

The weakness was published 04/23/2021 as JSA11128. The advisory is available at kb.juniper.net. This vulnerability is handled as CVE-2021-0233. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

Upgrading to version 17.4R3-S2 eliminates this vulnerability.

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Productinfo

Type

Router Operating System

Vendor

Juniper

Name

Junos OS

Version

17.4R3-S1

License

commercial

Website

Vendor: https://www.juniper.net/

CPE 2.3info

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CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Resource consumption
CWE: CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Junos OS 17.4R3-S2

Timelineinfo

10/27/2020 🔍
04/23/2021 +177 days 🔍
04/23/2021 +0 days 🔍
04/29/2021 +6 days 🔍

Sourcesinfo

Vendor: juniper.net

Advisory: JSA11128
Status: Confirmed

CVE: CVE-2021-0233 (🔍)
GCVE (CVE): GCVE-0-2021-0233
GCVE (VulDB): GCVE-100-173750

Entryinfo

Created: 04/23/2021 07:33
Updated: 04/29/2021 08:35
Changes: 04/23/2021 07:33 (41), 04/27/2021 11:11 (5), 04/27/2021 11:17 (1), 04/29/2021 08:35 (7)
Complete: 🔍
Cache ID: 216::103