VDB-111721 · CVE-2018-0005 · Nessus 106390

Juniper Junos QFX/Junos EX MAC Limit unusual condition

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.
6.8	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Juniper Junos QFX and Junos EX. Impacted is an unknown function of the component MAC Limit Handler. This manipulation causes unusual condition. This vulnerability is handled as CVE-2018-0005. The attack can only be done within the local network. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Juniper Junos QFX and Junos EX (Router Operating System) (affected version unknown) and classified as problematic. Affected by this vulnerability is an unknown functionality of the component MAC Limit Handler. The manipulation with an unknown input leads to a unusual condition vulnerability. The CWE definition for the vulnerability is CWE-754. The product does not check or incorrectly checks for unusual or exceptional conditions that are not expected to occur frequently during day to day operation of the product. As an impact it is known to affect availability. The summary by CVE is:

QFX and EX Series switches configured to drop traffic when the MAC move limit is exceeded will forward traffic instead of dropping traffic. This can lead to denials of services or other unintended conditions. Affected releases are Juniper Networks Junos OS: 14.1X53 versions prior to 14.1X53-D40; 15.1X53 versions prior to 15.1X53-D55; 15.1 versions prior to 15.1R7.

The bug was discovered 01/10/2018. The weakness was released 01/10/2018 (Website). The advisory is shared at kb.juniper.net. This vulnerability is known as CVE-2018-0005 since 11/16/2017. The attack can only be done within the local network. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 106390 (Juniper Junos MAC Move Limit Traffic Handling Remote DoS (JSA10833)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Junos Local Security Checks and running in the context c. The commercial vulnerability scanner Qualys is able to test this issue with plugin 43626 (Juniper Junos OS Traffic Drop Vulnerability (JSA10833)).

Upgrading eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (106390). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Router Operating System

Vendor

Juniper

Name

License

commercial

Website

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

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.8

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CNA Base Score: 7.4
CNA Vector (Juniper Networks, Inc.): 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Unusual condition
CWE: CWE-754
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 106390
Nessus Name: Juniper Junos MAC Move Limit Traffic Handling Remote DoS (JSA10833)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

11/16/2017 🔍
01/10/2018 +55 days 🔍
01/10/2018 +0 days 🔍
01/10/2018 +0 days 🔍
01/10/2018 +0 days 🔍
01/11/2018 +1 days 🔍
01/26/2018 +15 days 🔍
01/20/2023 +1820 days 🔍

Sourcesinfo

Vendor: juniper.net

Advisory: kb.juniper.net
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-0005 (🔍)
GCVE (CVE): GCVE-0-2018-0005
GCVE (VulDB): GCVE-100-111721
SecurityTracker: 1040182

Entryinfo

Created: 01/11/2018 16:30
Updated: 01/20/2023 14:48
Changes: 01/11/2018 16:30 (65), 12/22/2019 09:11 (3), 01/29/2021 18:59 (3), 01/29/2021 19:05 (1), 01/20/2023 14:48 (12)
Complete: 🔍
Cache ID: 216::103

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