Improper check for unusual or exceptional conditions in Juniper Junos OS

1) Improper check for unusual or exceptional conditions

EUVDB-ID: #VU88454

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-30384

CWE-ID: CWE-754 - Improper Check for Unusual or Exceptional Conditions

Exploit availability: No

Description

The vulnerability allows a local authenticated user to perform a denial of service (DoS) attack.

The vulnerability exists due to improper check for unusual or exceptional conditions error in the Packet Forwarding Engine (PFE). A local authenticated user can cause a Denial-of-Service (Dos).

If a specific CLI command is issued, a PFE crash will occur.

This will cause traffic forwarding to be interrupted until the system self-recovers.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Juniper Junos OS: 20.4R1 - 21.4R3-S5

External links

http://supportportal.juniper.net/s/article/2024-04-Security-Bulletin-Junos-OS-EX4300-Series-If-a-specific-CLI-command-is-issued-PFE-crashes-will-occur-CVE-2024-30384

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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