CVE-2024-39534: Junos OS Evolved: Connections to the network and broadcast address accepted
First published: Fri Oct 11 2024(Updated: )
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.
Credit: sirt@juniper.net
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Juniper Networks Junos OS | <21.4R3-S8-EVO<22.2R3-S4-EVO<22.3R3-S4-EVO<22.4R3-S3-EVO<23.2R2-S1-EVO<23.4R1-S2-EVO |
Remedy
The following software releases have been updated to resolve this specific issue: 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, 24.2R1-EVO, and all subsequent releases. *Future release
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
Frequently Asked Questions
What is the severity of CVE-2024-39534?
CVE-2024-39534 is categorized as a high severity vulnerability due to its potential for unauthorized access.
How do I fix CVE-2024-39534?
To fix CVE-2024-39534, users should upgrade to a fixed version of Junos OS Evolved that addresses this vulnerability.
Who is affected by CVE-2024-39534?
CVE-2024-39534 affects users of Juniper Networks Junos OS Evolved versions prior to 21.4R3-S8-EVO, 22.2R3-S4-EVO, 22.3R3-S4-EVO, 22.4R3-S3-EVO, 23.2R2-S1-EVO, and 23.4R1-S2-EVO.
What type of vulnerability is CVE-2024-39534?
CVE-2024-39534 is classified as an Incorrect Comparison vulnerability in the local address verification API.
Can CVE-2024-39534 be exploited remotely?
Yes, CVE-2024-39534 can be exploited by an unauthenticated network-adjacent attacker.
- agent/remedy
- agent/title
- agent/references
- agent/weakness
- agent/type
- agent/first-publish-date
- agent/description
- agent/severity
- agent/author
- agent/event
- collector/nvd-api
- source/NVD
- agent/last-modified-date
- collector/mitre-cve
- source/MITRE
- agent/source
- agent/tags
- agent/softwarecombine
- agent/guess-ai
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- vendor/juniper networks
- canonical/juniper networks junos os