// For flags

CVE-2024-3661

DHCP routing options can manipulate interface-based VPN traffic

Severity Score

7.6
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

DHCP can add routes to a client’s routing table via the classless static route option (121). VPN-based security solutions that rely on routes to redirect traffic can be forced to leak traffic over the physical interface. An attacker on the same local network can read, disrupt, or possibly modify network traffic that was expected to be protected by the VPN.

Por diseño, el protocolo DHCP no autentica mensajes, incluida, por ejemplo, la opción de ruta estática sin clases (121). Un atacante con la capacidad de enviar mensajes DHCP puede manipular rutas para redirigir el tráfico VPN, lo que le permite leer, interrumpir o posiblemente modificar el tráfico de red que se esperaba que estuviera protegido por la VPN. Muchos, si no la mayoría, de los sistemas VPN basados en enrutamiento IP son susceptibles a este tipo de ataques.

*Credits: N/A
CVSS Scores
Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
Low
Availability
Low
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-04-11 CVE Reserved
  • 2024-05-06 CVE Published
  • 2024-05-08 EPSS Updated
  • 2024-05-29 First Exploit
  • 2024-08-28 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-306: Missing Authentication for Critical Function
  • CWE-501: Trust Boundary Violation
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
IETF
Search vendor "IETF"
DHCP
Search vendor "IETF" for product "DHCP"
0
Search vendor "IETF" for product "DHCP" and version "0"
en
Affected