// For flags

CVE-2024-2357

IKEv2 misconfiguration can cause libreswan to abort and restart

Severity Score

5.0
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

The Libreswan Project was notified of an issue causing libreswan to restart under some IKEv2 retransmit scenarios when a connection is configured to use PreSharedKeys (authby=secret) and the connection cannot find a matching configured secret. When such a connection is automatically added on startup using the auto= keyword, it can cause repeated crashes leading to a Denial of Service.

Se notificó a Libreswan Project sobre un problema que causaba que libreswan se reiniciara en algunos escenarios de retransmisión de IKEv2 cuando una conexión está configurada para usar PreSharedKeys (authby=secret) y la conexión no puede encontrar un secreto configurado coincidente. Cuando dicha conexión se agrega automáticamente al inicio usando la palabra clave auto=, puede causar fallas repetidas que conducen a una denegación de servicio.

A flaw was found in Libreswan. This issue causes Libreswan to restart under some IKEv2 retransmit scenarios when a connection is configured to use PreSharedKeys (authby=secret), and the connection cannot find a matching configured secret. When automatically added on startup using the auto= keyword, it can cause repeated crashes, leading to a denial of service.

*Credits: Andrew Vaughn
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-03-09 CVE Reserved
  • 2024-03-11 CVE Published
  • 2024-03-21 EPSS Updated
  • 2024-08-01 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-400: Uncontrolled Resource Consumption
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
The Libreswan Project (www.libreswan.org)
Search vendor "The Libreswan Project (www.libreswan.org)"
 Libreswan
Search vendor "The Libreswan Project (www.libreswan.org)" for product "Libreswan"
 >= 4.2 <= 4.12
Search vendor "The Libreswan Project (www.libreswan.org)" for product "Libreswan" and version " >= 4.2 <= 4.12"
en
Affected