Juniper Junos OS Evolved prior 23.4R2-EVO Local Address Verification API comparison

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Juniper Junos OS Evolved. This affects an unknown function of the component Local Address Verification API. The manipulation leads to comparison. This vulnerability is traded as CVE-2024-39534. Access to the local network is required for this attack to succeed. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Juniper Junos OS Evolved. It has been rated as critical. This issue affects some unknown functionality of the component Local Address Verification API. The manipulation with an unknown input leads to a comparison vulnerability. Using CWE to declare the problem leads to CWE-697. The product compares two entities in a security-relevant context, but the comparison is incorrect, which may lead to resultant weaknesses. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

An Incorrect Comparison vulnerability in the local address verification API of Juniper Networks Junos OS Evolved allows an unauthenticated network-adjacent attacker to create sessions or send traffic to the device using the network and broadcast address of the subnet assigned to an interface. This is unintended and unexpected behavior and can allow an attacker to bypass certain compensating controls, such as stateless firewall filters. This issue affects Junos OS Evolved:  * All versions before 21.4R3-S8-EVO,  * 22.2-EVO before 22.2R3-S4-EVO,  * 22.3-EVO before 22.3R3-S4-EVO,  * 22.4-EVO before 22.4R3-S3-EVO,  * 23.2-EVO before 23.2R2-S1-EVO,  * 23.4-EVO before 23.4R1-S2-EVO, 23.4R2-EVO.

It is possible to read the advisory at supportportal.juniper.net. The identification of this vulnerability is CVE-2024-39534 since 06/25/2024. The exploitation is known to be easy. The attack can only be initiated within the local network. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 01/24/2026).

The vulnerability scanner Nessus provides a plugin with the ID 210407 (Juniper Junos OS Vulnerability (JSA88105)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 21.4R3-S8-EVO, 22.2R3-S4-EVO, 22.3R3-S4-EVO, 22.4R3-S3-EVO, 23.2R2-S1-EVO, 23.4R1-S2-EVO or 23.4R2-EVO eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (210407). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔍
CNA CVSS-BT Score: 🔍
CNA Vector: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.7

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

CNA Base Score: 5.4
CNA Vector (juniper): 🔍

CVSSv2info

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

Exploitinginfo

Class: Comparison
CWE: CWE-697
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: 210407
Nessus Name: Juniper Junos OS Vulnerability (JSA88105)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Junos OS Evolved 21.4R3-S8-EVO/22.2R3-S4-EVO/22.3R3-S4-EVO/22.4R3-S3-EVO/23.2R2-S1-EVO/23.4R1-S2-EVO/23.4R2-EVO

Timelineinfo

06/25/2024 🔍
10/11/2024 +108 days 🔍
10/11/2024 +0 days 🔍
01/24/2026 +470 days 🔍

Sourcesinfo

Vendor: juniper.net

Advisory: JSA88105
Status: Confirmed

CVE: CVE-2024-39534 (🔍)
GCVE (CVE): GCVE-0-2024-39534
GCVE (VulDB): GCVE-100-280079

Entryinfo

Created: 10/11/2024 18:03
Updated: 01/24/2026 02:07
Changes: 10/11/2024 18:03 (76), 11/06/2024 22:54 (2), 01/24/2026 02:07 (1)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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