CVE-2024-30407

[Child CVE] JCNR and cRPD: Hard-coded SSH host keys in cRPD may allow Person-in-the-Middle (PitM) attacks

Description

The Use of a Hard-coded Cryptographic Key vulnerability in Juniper Networks Juniper Cloud Native Router (JCNR) and containerized routing Protocol Deamon (cRPD) products allows an attacker to perform Person-in-the-Middle (PitM) attacks which results in complete compromise of the container. Due to hardcoded SSH host keys being present on the container, a PitM attacker can intercept SSH traffic without being detected.  This issue affects Juniper Networks JCNR: * All versions before 23.4. This issue affects Juniper Networks cRPD: * All versions before 23.4R1.

Remediation

Solution:

  • The following software releases have been updated to resolve this specific issue:  JCNR: 23.4, and all subsequent releases. cRPD: 23.4R1, and all subsequent releases.

Workaround:

  • Remove the hard coded keys using: "rm -rf /etc/ssh/ssh_host_*" and then run "ssh-keygen -A" to generate new host keys.

Category

9.2
CVSS
Severity: Critical
CVSS 4.0 •
CVSS 3.1 •
EPSS 0.15%
Vendor Advisory juniper.net Vendor Advisory juniper.net
Affected: Juniper Networks, Inc. cRPD
Affected: Juniper Networks, Inc. Juniper Cloud Native Router (JCNR)
Published at:
Updated at:

References

Link Tags
https://supportportal.juniper.net/JSA79106 vendor advisory
https://supportportal.juniper.net/JSA79107 vendor advisory
https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N technical description

Frequently Asked Questions

What is the severity of CVE-2024-30407?
CVE-2024-30407 has been scored as a critical severity vulnerability.
How to fix CVE-2024-30407?
To fix CVE-2024-30407: The following software releases have been updated to resolve this specific issue:  JCNR: 23.4, and all subsequent releases. cRPD: 23.4R1, and all subsequent releases.
Is CVE-2024-30407 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-30407 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-30407?
CVE-2024-30407 affects Juniper Networks, Inc. cRPD, Juniper Networks, Inc. Juniper Cloud Native Router (JCNR).
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