Main Vulnerability Database SB2024011074

SB2024011074 - Exposure of resource to wrong sphere in Juniper Junos OS

Published: January 10, 2024

Security Bulletin ID SB2024011074

CSH Severity

Medium

Patch available

YES

Number of vulnerabilities 1

Exploitation vector Remote access

Highest impact Data manipulation

Breakdown by Severity

Low
Medium
High
Critical

Description

This security bulletin contains information about 1 vulnerability.

1) Exposure of resource to wrong sphere (CVE-ID: CVE-2024-21597)

CWE-ID: CWE-668 - Exposure of resource to wrong sphere

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

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

The vulnerability exists due to exposure of resource to wrong sphere error in the Packet Forwarding Engine (PFE). A remote non-authenticated attacker can bypass the intended access restrictions.

In an Abstracted Fabric (AF) scenario if routing-instances (RI) are configured, specific valid traffic destined to the device can bypass the configured lo0 firewall filters as it's received in the wrong RI context.

Remediation

Install update from vendor's website.

References

https://supportportal.juniper.net/s/article/2024-01-Security-Bulletin-Junos-OS-MX-Series-In-an-AF-scenario-traffic-can-bypass-configured-lo0-firewall-filters-CVE-2024-21597