// For flags

CVE-2022-20730

Cisco Firepower Threat Defense Software Security Intelligence DNS Feed Bypass Vulnerability

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

A vulnerability in the Security Intelligence feed feature of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass the Security Intelligence DNS feed. This vulnerability is due to incorrect feed update processing. An attacker could exploit this vulnerability by sending traffic through an affected device that should be blocked by the affected device. A successful exploit could allow the attacker to bypass device controls and successfully send traffic to devices that are expected to be protected by the affected device.

Una vulnerabilidad en la función de alimentación de Inteligencia de Seguridad del software Cisco Firepower Threat Defense (FTD) podría permitir a un atacante remoto no autenticado omitir la alimentación de DNS de Inteligencia de Seguridad. Esta vulnerabilidad es debido a un procesamiento incorrecto de la actualización de la alimentación. Un atacante podría explotar esta vulnerabilidad mediante el envío de tráfico a través de un dispositivo afectado que debería ser bloqueado por el dispositivo afectado. Una explotación con éxito podría permitir al atacante omitir los controles del dispositivo y enviar con éxito el tráfico a los dispositivos que es esperado que estén protegidos por el dispositivo afectado

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
None
Integrity
Low
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2021-11-02 CVE Reserved
  • 2022-05-03 CVE Published
  • 2023-11-23 EPSS Updated
  • 2024-11-06 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-241: Improper Handling of Unexpected Data Type
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"
 Firepower Threat Defense
Search vendor "Cisco" for product "Firepower Threat Defense"
 < 6.4.0.15
Search vendor "Cisco" for product "Firepower Threat Defense" and version " < 6.4.0.15"
-
Affected
Cisco
Search vendor "Cisco"
 Firepower Threat Defense
Search vendor "Cisco" for product "Firepower Threat Defense"
 >= 6.5.0 < 6.6.5.2
Search vendor "Cisco" for product "Firepower Threat Defense" and version " >= 6.5.0 < 6.6.5.2"
-
Affected
Cisco
Search vendor "Cisco"
 Firepower Threat Defense
Search vendor "Cisco" for product "Firepower Threat Defense"
 >= 6.7.0 < 7.0.2
Search vendor "Cisco" for product "Firepower Threat Defense" and version " >= 6.7.0 < 7.0.2"
-
Affected