// For flags

CVE-2022-20950

 

Severity Score

5.3
*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 interaction of SIP and Snort 3 for Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the Snort 3 detection engine to restart.
This vulnerability is due to a lack of error-checking when SIP bidirectional flows are being inspected by Snort 3. An attacker could exploit this vulnerability by sending a stream of crafted SIP traffic through an interface on the targeted device. A successful exploit could allow the attacker to trigger a restart of the Snort 3 process, resulting in a denial of service (DoS) condition.

Una vulnerabilidad en la interacción de SIP y Snort 3 para el software Cisco Firepower Threat Defense (FTD) podría permitir que un atacante remoto no autenticado provoque que el motor de detección de Snort 3 se reinicie. Esta vulnerabilidad se debe a la falta de verificación de errores cuando Snort 3 inspecciona los flujos bidireccionales SIP. Un atacante podría explotar esta vulnerabilidad enviando un flujo de tráfico SIP manipulado a través de una interfaz en el dispositivo objetivo. Un exploit exitoso podría permitir al atacante reiniciar el proceso Snort 3, lo que resultaría en una condición de Denegación de Servicio (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
Low
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
None
Integrity
None
Availability
Low
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
None
Automatable
Yes
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2021-11-02 CVE Reserved
  • 2022-11-10 CVE Published
  • 2024-06-02 EPSS Updated
  • 2024-11-19 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-754: Improper Check for Unusual or Exceptional Conditions
  • CWE-770: Allocation of Resources Without Limits or Throttling
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"
 7.2.0
Search vendor "Cisco" for product "Firepower Threat Defense" and version "7.2.0"
-
Affected
Cisco
Search vendor "Cisco"
 Firepower Threat Defense
Search vendor "Cisco" for product "Firepower Threat Defense"
 7.2.0.1
Search vendor "Cisco" for product "Firepower Threat Defense" and version "7.2.0.1"
-
Affected