Missing authentication for critical function in Juniper Junos OS

1) Missing authentication for critical function

EUVDB-ID: #VU88457

Risk: Medium

CVSSv3.1: 4.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-30391

CWE-ID: CWE-306 - Missing Authentication for Critical Function

Exploit availability: No

Description

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

The vulnerability exists due to missing authentication for critical function error in the Packet Forwarding Engine (pfe). A remote non-authenticated attacker can cause limited impact to the integrity or availability of the device.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Juniper Junos OS: 20.4R1 - 21.4R1-S2

External links

http://supportportal.juniper.net/s/article/2024-04-Security-Bulletin-Junos-OS-MX-Series-with-SPC3-and-SRX-Series-When-IPsec-authentication-is-configured-with-hmac-sha-384-and-hmac-sha-512-no-authentication-of-traffic-is-performed-CVE-2024-30391

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.