#VU88451 Improper restriction of excessive authentication attempts in Junos OS Evolved - CVE-2024-30390

Vulnerability identifier: #VU88451

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2024-30390

CWE-ID: CWE-307

Exploitation vector: Network

Exploit availability: No

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

Vendor: Juniper Networks, Inc.

Description

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

The vulnerability exists due to improper restriction of excessive authentication attempts error. A remote non-authenticated attacker can cause a limited Denial of Service (DoS) to the management plane.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Junos OS Evolved: 20.4R1-EVO - 20.4R3-S8-EVO, 21.4R1-EVO - 21.4R3-S3-EVO, 22.1-EVO - 22.1R3-S2-EVO, 22.2-EVO - 22.2R3-S1-EVO, 22.3R1-EVO - 22.3R2-EVO, 22.4R1-EVO - 22.4R1-S1-EVO

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External links
https://supportportal.juniper.net/s/article/2024-04-Security-Bulletin-Junos-OS-Evolved-Connection-limits-is-not-being-enforced-while-the-resp-rate-limit-is-being-enforced-CVE-2024-30390

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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.