// For flags

CVE-2018-15462

Cisco Firepower Threat Defense Software TCP Ingress Handler Denial of Service Vulnerability

Severity Score

7.5
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

A vulnerability in the TCP ingress handler for the data interfaces that are configured with management access to Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause an increase in CPU and memory usage, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient ingress TCP rate limiting for TCP ports 22 (SSH) and 443 (HTTPS). An attacker could exploit this vulnerability by sending a crafted, steady stream of TCP traffic to port 22 or 443 on the data interfaces that are configured with management access to the affected device.

Una vulnerabilidad en el controlador de ingreso de TCP para las interfaces de datos que están configuradas con acceso de administración al programa Cisco Firepower Threat Defense (FTD) podría permitir que un atacante remoto no autenticado provoque un aumento en el uso de la CPU y la memoria, dando como resultado una denegación de servicio( DoS) condición. La vulnerabilidad se debe a una limitación de la tasa de TCP de ingreso insuficiente para los puertos TCP 22 (SSH) y 443 (HTTPS). Un atacante podría atacar esta vulnerabilidad enviando un flujo de tráfico TCP continuo y creado al puerto 22 o 443 en las interfaces de datos que están configuradas con acceso de administración al dispositivo afectado.

*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
Privileges Required
None
User Interaction
None
Scope
Changed
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
  • 2018-08-17 CVE Reserved
  • 2019-05-03 CVE Published
  • 2023-03-07 EPSS Updated
  • 2024-11-19 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-399: Resource Management Errors
  • 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"
 < 6.2.3.12
Search vendor "Cisco" for product "Firepower Threat Defense" and version " < 6.2.3.12"
-
Affected
Cisco
Search vendor "Cisco"
 Firepower Threat Defense
Search vendor "Cisco" for product "Firepower Threat Defense"
 >= 6.3.0 < 6.3.0.3
Search vendor "Cisco" for product "Firepower Threat Defense" and version " >= 6.3.0 < 6.3.0.3"
-
Affected