Medium severity · published Oct 11, 2024
CVE-2024-39534
Junos OS Evolved: Connections to the network and broadcast address accepted
5.4
CVSS
0.7%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 51% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
JO
Junos OS Evolved · Juniper Networks
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 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-39534
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-39534
Vendor Advisory
https://supportportal.juniper.net/JSA88105
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