CVE-2024-39545

Junos OS: SRX Series, MX Series with SPC3 and NFX350: When VPN tunnels parameters are not configured in specific way the iked process will crash

Description

An Improper Check for Unusual or Exceptional Conditions vulnerability in the the IKE daemon (iked) of Juniper Networks Junos OS on SRX Series, MX Series with SPC3 and NFX350 allows allows an unauthenticated, network-based attacker sending specific mismatching parameters as part of the IPsec negotiation to trigger an iked crash leading to Denial of Service (DoS). This issue is applicable to all platforms that run iked. This issue affects Junos OS on SRX Series, MX Series with SPC3 and NFX350:  * All versions before 21.2R3-S8,  * from 21.4 before 21.4R3-S7,  * from 22.1 before 22.1R3-S2,  * from 22.2 before 22.2R3-S1,  * from 22.3 before 22.3R2-S1, 22.3R3,  * from 22.4 before 22.4R1-S2, 22.4R2, 22.4R3.

Remediation

Solution:

  • The following software releases have been updated to resolve this specific issue: Junos OS: 21.2R3-S8, 21.4R3-S7, 22.1R3-J1, 22.1R3-S2, 22.2R3-S1, 22.3R2-S1, 22.3R3, 22.4R1-S2, 22.4R2, 22.4R3, 23.2R1, and all subsequent releases.

Workaround:

  • There are no known workarounds for this issue.

Category

8.7
CVSS
Severity: High
CVSS 4.0 •
CVSS 3.1 •
EPSS 0.24%
Vendor Advisory juniper.net
Affected: Juniper Networks Junos OS
Published at:
Updated at:

References

Link Tags
https://supportportal.juniper.net/JSA83007 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2024-39545?
CVE-2024-39545 has been scored as a high severity vulnerability.
How to fix CVE-2024-39545?
To fix CVE-2024-39545: The following software releases have been updated to resolve this specific issue: Junos OS: 21.2R3-S8, 21.4R3-S7, 22.1R3-J1, 22.1R3-S2, 22.2R3-S1, 22.3R2-S1, 22.3R3, 22.4R1-S2, 22.4R2, 22.4R3, 23.2R1, and all subsequent releases.
Is CVE-2024-39545 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-39545 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-2024-39545?
CVE-2024-39545 affects Juniper Networks Junos OS.
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