PT-2024-2940 · Juniper Networks · Junos

Published 2024-04-10 · Updated 2025-02-06 · CVE-2024-30410

Positive Technologies (AI Summary)

CVSS v4.0

6.9

Medium

Base vector

AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Name of the Vulnerable Software and Affected Versions Juniper Networks Junos OS versions prior to 20.4R3-S10 Juniper Networks Junos OS versions from 21.2 before 21.2R3-S7 Juniper Networks Junos OS versions from 21.4 before 21.4R3-S6

Description The issue is related to an incorrect behavior order in the routing engine of Juniper Networks Junos OS on EX4300 Series, allowing traffic intended for the device to reach the routing engine instead of being discarded when the discard term is set in the loopback interface. This issue affects only IPv6 firewall filters. The intended function is that the loopback firewall filter takes precedence over the revenue interface firewall filter.

Recommendations For versions prior to 20.4R3-S10, update to version 20.4R3-S10 or later. For versions from 21.2 before 21.2R3-S7, update to version 21.2R3-S7 or later. For versions from 21.4 before 21.4R3-S6, update to version 21.4R3-S6 or later. As a temporary workaround, consider restricting access to the loopback interface to minimize the risk of exploitation.

Fix

Weakness Enumeration

CWE-696

Related Identifiers

BDU:2024-03107

CVE-2024-30410

Affected Products

Junos

References · 6

• https://supportportal.juniper.net/JSA79100 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-30410 · Security Note
• https://bdu.fstec.ru/vul/2024-03107 · Security Note
• https://osv.dev/vulnerability/CVE-2024-30410 · Vendor Advisory
• https://first.org/cvss/calculator/4.0#CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N · Note
• https://t.me/cvenotify/110271 · Telegram Post