SB2024041204 - Firewall rules bypass in Junos OS on EX4300
Published: April 12, 2024
Security Bulletin ID
SB2024041204
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 security vulnerability.
1) Incorrect behavior order (CVE-ID: CVE-2024-30410)
The vulnerability allows a remote attacker to bypass certain security restrictions.
The vulnerability exists due to an incorrect behavior order error in the routing engine (RE) of Juniper Networks Junos OS on EX4300 Series, which allows traffic intended to the device to reach the RE instead. A remote attacker can send specially crafted IPv6 packets to the device and bypass implemented firewall rules.
Note, the vulnerability affects only EX4300 switch.
Remediation
Install update from vendor's website.