Vulnerability identifier: #VU88460

Vulnerability risk: Medium

CVSSv3.1: 5.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-30389

CWE-ID: CWE-696

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Juniper Junos OS
Operating systems & Components / Operating system

Vendor: Juniper Networks, Inc.

Description

The vulnerability allows a remote non-authenticated attacker to manipulate data.

The vulnerability exists due to incorrect behavior order error in the Packet Forwarding Engine (PFE). A remote non-authenticated attacker can cause an integrity impact to networks downstream of the vulnerable device.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Juniper Junos OS: 21.4R1 - 21.4R3-S5

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External links
http://supportportal.juniper.net/s/article/2024-04-Security-Bulletin-Junos-OS-EX4300-Series-Firewall-filter-not-blocking-egress-traffic-CVE-2024-30389

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.