Juniper Junos OS Evolved nsagentd communication channel to intended endpoints

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.
5.6	$0-$5k	0.00

Summaryinfo

A vulnerability labeled as critical has been found in Juniper Junos OS Evolved. Affected by this issue is some unknown functionality of the component nsagentd. Executing a manipulation can lead to communication channel to intended endpoints. This vulnerability is handled as CVE-2023-44195. The attack can only be done within the local network. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as critical was found in Juniper Junos OS Evolved (Router Operating System) (the affected version unknown). This vulnerability affects an unknown part of the component nsagentd. The manipulation with an unknown input leads to a communication channel to intended endpoints vulnerability. The CWE definition for the vulnerability is CWE-923. The product establishes a communication channel to (or from) an endpoint for privileged or protected operations, but it does not properly ensure that it is communicating with the correct endpoint. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

An Improper Restriction of Communication Channel to Intended Endpoints vulnerability in the NetworkStack agent daemon (nsagentd) of Juniper Networks Junos OS Evolved allows an unauthenticated network based attacker to cause limited impact to the availability of the system. If specific packets reach the Routing-Engine (RE) these will be processed normally even if firewall filters are in place which should have prevented this. This can lead to a limited, increased consumption of resources resulting in a Denial-of-Service (DoS), and unauthorized access. CVE-2023-44196 is a prerequisite for this issue. This issue affects Juniper Networks Junos OS Evolved: * 21.3-EVO versions prior to 21.3R3-S5-EVO; * 21.4-EVO versions prior to 21.4R3-S4-EVO; * 22.1-EVO version 22.1R1-EVO and later; * 22.2-EVO version 22.2R1-EVO and later; * 22.3-EVO versions prior to 22.3R2-S2-EVO, 22.3R3-S1-EVO; * 22.4-EVO versions prior to 22.4R3-EVO. This issue doesn't not affected Junos OS Evolved versions prior to 21.3R1-EVO.

The weakness was released 10/13/2023 as JSA73160. The advisory is shared for download at supportportal.juniper.net. This vulnerability was named CVE-2023-44195 since 09/26/2023. There are neither technical details nor an exploit publicly available.

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Productinfo

Type

Router Operating System

Vendor

Juniper

Name

Junos OS Evolved

License

commercial

Website

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

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.7
VulDB Meta Temp Score: 5.6

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.3
NVD Vector: 🔍

CNA Base Score: 5.4
CNA Vector (Juniper Networks, Inc.): 🔍

CVSSv2info

AV	AC	Au	C	I	A
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Communication channel to intended endpoints
CWE: CWE-923
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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Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/26/2023 🔍
10/13/2023 +17 days 🔍
10/13/2023 +0 days 🔍
10/31/2023 +18 days 🔍

Sourcesinfo

Vendor: juniper.net

Advisory: JSA73160
Status: Confirmed

CVE: CVE-2023-44195 (🔍)
GCVE (CVE): GCVE-0-2023-44195
GCVE (VulDB): GCVE-100-242056

Entryinfo

Created: 10/13/2023 08:29
Updated: 10/31/2023 16:22
Changes: 10/13/2023 08:29 (49), 10/31/2023 16:22 (11)
Complete: 🔍
Cache ID: 216::103