// For flags

CVE-2020-3272

Cisco Prime Network Registrar DHCP Denial of Service Vulnerability

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

A vulnerability in the DHCP server of Cisco Prime Network Registrar could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient input validation of incoming DHCP traffic. An attacker could exploit this vulnerability by sending a crafted DHCP request to an affected device. A successful exploit could allow the attacker to cause a restart of the DHCP server process, causing a DoS condition.

Una vulnerabilidad en el servidor DHCP de Cisco Prime Network Registrar, podría permitir a un atacante remoto no autenticado causar una condición de denegación de servicio (DoS) sobre un dispositivo afectado. La vulnerabilidad es debido a una comprobación de entrada insuficiente del tráfico DHCP entrante. Un atacante podría explotar esta vulnerabilidad al enviar una petición DHCP diseñada hacia un dispositivo afectado. Una explotación con éxito podría permitir a un atacante causar un reinicio del proceso del servidor DHCP, causando una condición DoS.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
None
Automatable
Yes
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2019-12-12 CVE Reserved
  • 2020-05-22 CVE Published
  • 2023-03-07 EPSS Updated
  • 2024-11-15 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-20: Improper Input Validation
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Cisco
Search vendor "Cisco"
 Prime Network Registrar
Search vendor "Cisco" for product "Prime Network Registrar"
 >= 8.3 < 8.3.7.1
Search vendor "Cisco" for product "Prime Network Registrar" and version " >= 8.3 < 8.3.7.1"
-
Affected
Cisco
Search vendor "Cisco"
 Prime Network Registrar
Search vendor "Cisco" for product "Prime Network Registrar"
 >= 9.0 < 9.1.3
Search vendor "Cisco" for product "Prime Network Registrar" and version " >= 9.0 < 9.1.3"
-
Affected
Cisco
Search vendor "Cisco"
 Prime Network Registrar
Search vendor "Cisco" for product "Prime Network Registrar"
 >= 10.0 < 10.1.0.1
Search vendor "Cisco" for product "Prime Network Registrar" and version " >= 10.0 < 10.1.0.1"
-
Affected