// For flags

CVE-2020-3189

Cisco Firepower Threat Defense Software VPN System Logging Denial of Service Vulnerability

Severity Score

8.6
*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 VPN System Logging functionality for Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a memory leak that can deplete system memory over time, which can cause unexpected system behaviors or device crashes. The vulnerability is due to the system memory not being properly freed for a VPN System Logging event generated when a VPN session is created or deleted. An attacker could exploit this vulnerability by repeatedly creating or deleting a VPN tunnel connection, which could leak a small amount of system memory for each logging event. A successful exploit could allow the attacker to cause system memory depletion, which can lead to a systemwide denial of service (DoS) condition. The attacker does not have any control of whether VPN System Logging is configured or not on the device, but it is enabled by default.

Una vulnerabilidad en la funcionalidad VPN System Logging para el Cisco Firepower Threat Defense (FTD) Software, podría permitir a un atacante remoto no autenticado causar una pérdida de memoria que puede agotar la memoria del sistema con el tiempo, lo que puede causar comportamientos inesperados del sistema o bloqueos del dispositivo. La vulnerabilidad es debido a que la memoria del sistema no está siendo liberada apropiadamente para un evento de la VPN System Logging cuando es creada o eliminada una sesión VPN. Un atacante podría explotar esta vulnerabilidad creando o eliminando repetidamente una conexión de túnel VPN, lo cual podría filtrar una pequeña cantidad de memoria del sistema para cada evento de registro. Una explotación con éxito podría permitir a un atacante causar el agotamiento de la memoria del sistema, lo que puede conllevar a una condición de denegación de servicio (DoS) en todo el sistema. El atacante no posee ningún control sobre si VPN System Logging está configurado o no en el dispositivo, pero está habilitado por defecto.

*Credits: N/A
CVSS Scores
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
Partial
* 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
  • 2020-05-06 CVE Published
  • 2023-03-08 EPSS Updated
  • 2024-11-15 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-400: Uncontrolled Resource Consumption
  • CWE-401: Missing Release of Memory after Effective Lifetime
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"
Asa 5505 Firmware
Search vendor "Cisco" for product "Asa 5505 Firmware"
9.9\(2\)
Search vendor "Cisco" for product "Asa 5505 Firmware" and version "9.9\(2\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5505
Search vendor "Cisco" for product "Asa 5505"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5505 Firmware
Search vendor "Cisco" for product "Asa 5505 Firmware"
9.9\(2.21\)
Search vendor "Cisco" for product "Asa 5505 Firmware" and version "9.9\(2.21\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5505
Search vendor "Cisco" for product "Asa 5505"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5505 Firmware
Search vendor "Cisco" for product "Asa 5505 Firmware"
9.9\(2.52\)
Search vendor "Cisco" for product "Asa 5505 Firmware" and version "9.9\(2.52\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5505
Search vendor "Cisco" for product "Asa 5505"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5505 Firmware
Search vendor "Cisco" for product "Asa 5505 Firmware"
9.9\(2.55\)
Search vendor "Cisco" for product "Asa 5505 Firmware" and version "9.9\(2.55\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5505
Search vendor "Cisco" for product "Asa 5505"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5510 Firmware
Search vendor "Cisco" for product "Asa 5510 Firmware"
9.9\(2\)
Search vendor "Cisco" for product "Asa 5510 Firmware" and version "9.9\(2\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5510
Search vendor "Cisco" for product "Asa 5510"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5510 Firmware
Search vendor "Cisco" for product "Asa 5510 Firmware"
9.9\(2.21\)
Search vendor "Cisco" for product "Asa 5510 Firmware" and version "9.9\(2.21\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5510
Search vendor "Cisco" for product "Asa 5510"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5510 Firmware
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9.9\(2.52\)
Search vendor "Cisco" for product "Asa 5510 Firmware" and version "9.9\(2.52\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5510
Search vendor "Cisco" for product "Asa 5510"
--
Safe
Cisco
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Asa 5510 Firmware
Search vendor "Cisco" for product "Asa 5510 Firmware"
9.9\(2.55\)
Search vendor "Cisco" for product "Asa 5510 Firmware" and version "9.9\(2.55\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5510
Search vendor "Cisco" for product "Asa 5510"
--
Safe
Cisco
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Asa 5512-x Firmware
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9.9\(2\)
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-
Affected
in Cisco
Search vendor "Cisco"
Asa 5512-x
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--
Safe
Cisco
Search vendor "Cisco"
Asa 5512-x Firmware
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9.9\(2.21\)
Search vendor "Cisco" for product "Asa 5512-x Firmware" and version "9.9\(2.21\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5512-x
Search vendor "Cisco" for product "Asa 5512-x"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5512-x Firmware
Search vendor "Cisco" for product "Asa 5512-x Firmware"
9.9\(2.52\)
Search vendor "Cisco" for product "Asa 5512-x Firmware" and version "9.9\(2.52\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5512-x
Search vendor "Cisco" for product "Asa 5512-x"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5512-x Firmware
Search vendor "Cisco" for product "Asa 5512-x Firmware"
9.9\(2.55\)
Search vendor "Cisco" for product "Asa 5512-x Firmware" and version "9.9\(2.55\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5512-x
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--
Safe
Cisco
Search vendor "Cisco"
Asa 5515-x Firmware
Search vendor "Cisco" for product "Asa 5515-x Firmware"
9.9\(2\)
Search vendor "Cisco" for product "Asa 5515-x Firmware" and version "9.9\(2\)"
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Affected
in Cisco
Search vendor "Cisco"
Asa 5515-x
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--
Safe
Cisco
Search vendor "Cisco"
Asa 5515-x Firmware
Search vendor "Cisco" for product "Asa 5515-x Firmware"
9.9\(2.21\)
Search vendor "Cisco" for product "Asa 5515-x Firmware" and version "9.9\(2.21\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5515-x
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--
Safe
Cisco
Search vendor "Cisco"
Asa 5515-x Firmware
Search vendor "Cisco" for product "Asa 5515-x Firmware"
9.9\(2.52\)
Search vendor "Cisco" for product "Asa 5515-x Firmware" and version "9.9\(2.52\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5515-x
Search vendor "Cisco" for product "Asa 5515-x"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5515-x Firmware
Search vendor "Cisco" for product "Asa 5515-x Firmware"
9.9\(2.55\)
Search vendor "Cisco" for product "Asa 5515-x Firmware" and version "9.9\(2.55\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5515-x
Search vendor "Cisco" for product "Asa 5515-x"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5520 Firmware
Search vendor "Cisco" for product "Asa 5520 Firmware"
9.9\(2\)
Search vendor "Cisco" for product "Asa 5520 Firmware" and version "9.9\(2\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5520
Search vendor "Cisco" for product "Asa 5520"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5520 Firmware
Search vendor "Cisco" for product "Asa 5520 Firmware"
9.9\(2.21\)
Search vendor "Cisco" for product "Asa 5520 Firmware" and version "9.9\(2.21\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5520
Search vendor "Cisco" for product "Asa 5520"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5520 Firmware
Search vendor "Cisco" for product "Asa 5520 Firmware"
9.9\(2.52\)
Search vendor "Cisco" for product "Asa 5520 Firmware" and version "9.9\(2.52\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5520
Search vendor "Cisco" for product "Asa 5520"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5520 Firmware
Search vendor "Cisco" for product "Asa 5520 Firmware"
9.9\(2.55\)
Search vendor "Cisco" for product "Asa 5520 Firmware" and version "9.9\(2.55\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5520
Search vendor "Cisco" for product "Asa 5520"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5525-x Firmware
Search vendor "Cisco" for product "Asa 5525-x Firmware"
9.9\(2\)
Search vendor "Cisco" for product "Asa 5525-x Firmware" and version "9.9\(2\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5525-x
Search vendor "Cisco" for product "Asa 5525-x"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5525-x Firmware
Search vendor "Cisco" for product "Asa 5525-x Firmware"
9.9\(2.21\)
Search vendor "Cisco" for product "Asa 5525-x Firmware" and version "9.9\(2.21\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5525-x
Search vendor "Cisco" for product "Asa 5525-x"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5525-x Firmware
Search vendor "Cisco" for product "Asa 5525-x Firmware"
9.9\(2.52\)
Search vendor "Cisco" for product "Asa 5525-x Firmware" and version "9.9\(2.52\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5525-x
Search vendor "Cisco" for product "Asa 5525-x"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5525-x Firmware
Search vendor "Cisco" for product "Asa 5525-x Firmware"
9.9\(2.55\)
Search vendor "Cisco" for product "Asa 5525-x Firmware" and version "9.9\(2.55\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5525-x
Search vendor "Cisco" for product "Asa 5525-x"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5540 Firmware
Search vendor "Cisco" for product "Asa 5540 Firmware"
9.9\(2\)
Search vendor "Cisco" for product "Asa 5540 Firmware" and version "9.9\(2\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5540
Search vendor "Cisco" for product "Asa 5540"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5540 Firmware
Search vendor "Cisco" for product "Asa 5540 Firmware"
9.9\(2.21\)
Search vendor "Cisco" for product "Asa 5540 Firmware" and version "9.9\(2.21\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5540
Search vendor "Cisco" for product "Asa 5540"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5540 Firmware
Search vendor "Cisco" for product "Asa 5540 Firmware"
9.9\(2.52\)
Search vendor "Cisco" for product "Asa 5540 Firmware" and version "9.9\(2.52\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5540
Search vendor "Cisco" for product "Asa 5540"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5540 Firmware
Search vendor "Cisco" for product "Asa 5540 Firmware"
9.9\(2.55\)
Search vendor "Cisco" for product "Asa 5540 Firmware" and version "9.9\(2.55\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5540
Search vendor "Cisco" for product "Asa 5540"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5545-x Firmware
Search vendor "Cisco" for product "Asa 5545-x Firmware"
9.9\(2\)
Search vendor "Cisco" for product "Asa 5545-x Firmware" and version "9.9\(2\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5545-x
Search vendor "Cisco" for product "Asa 5545-x"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5545-x Firmware
Search vendor "Cisco" for product "Asa 5545-x Firmware"
9.9\(2.21\)
Search vendor "Cisco" for product "Asa 5545-x Firmware" and version "9.9\(2.21\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5545-x
Search vendor "Cisco" for product "Asa 5545-x"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5545-x Firmware
Search vendor "Cisco" for product "Asa 5545-x Firmware"
9.9\(2.52\)
Search vendor "Cisco" for product "Asa 5545-x Firmware" and version "9.9\(2.52\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5545-x
Search vendor "Cisco" for product "Asa 5545-x"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5545-x Firmware
Search vendor "Cisco" for product "Asa 5545-x Firmware"
9.9\(2.55\)
Search vendor "Cisco" for product "Asa 5545-x Firmware" and version "9.9\(2.55\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5545-x
Search vendor "Cisco" for product "Asa 5545-x"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5550 Firmware
Search vendor "Cisco" for product "Asa 5550 Firmware"
9.9\(2\)
Search vendor "Cisco" for product "Asa 5550 Firmware" and version "9.9\(2\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5550
Search vendor "Cisco" for product "Asa 5550"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5550 Firmware
Search vendor "Cisco" for product "Asa 5550 Firmware"
9.9\(2.21\)
Search vendor "Cisco" for product "Asa 5550 Firmware" and version "9.9\(2.21\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5550
Search vendor "Cisco" for product "Asa 5550"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5550 Firmware
Search vendor "Cisco" for product "Asa 5550 Firmware"
9.9\(2.52\)
Search vendor "Cisco" for product "Asa 5550 Firmware" and version "9.9\(2.52\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5550
Search vendor "Cisco" for product "Asa 5550"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5550 Firmware
Search vendor "Cisco" for product "Asa 5550 Firmware"
9.9\(2.55\)
Search vendor "Cisco" for product "Asa 5550 Firmware" and version "9.9\(2.55\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5550
Search vendor "Cisco" for product "Asa 5550"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5555-x Firmware
Search vendor "Cisco" for product "Asa 5555-x Firmware"
9.9\(2\)
Search vendor "Cisco" for product "Asa 5555-x Firmware" and version "9.9\(2\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5555-x
Search vendor "Cisco" for product "Asa 5555-x"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5555-x Firmware
Search vendor "Cisco" for product "Asa 5555-x Firmware"
9.9\(2.21\)
Search vendor "Cisco" for product "Asa 5555-x Firmware" and version "9.9\(2.21\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5555-x
Search vendor "Cisco" for product "Asa 5555-x"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5555-x Firmware
Search vendor "Cisco" for product "Asa 5555-x Firmware"
9.9\(2.52\)
Search vendor "Cisco" for product "Asa 5555-x Firmware" and version "9.9\(2.52\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5555-x
Search vendor "Cisco" for product "Asa 5555-x"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5555-x Firmware
Search vendor "Cisco" for product "Asa 5555-x Firmware"
9.9\(2.55\)
Search vendor "Cisco" for product "Asa 5555-x Firmware" and version "9.9\(2.55\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5555-x
Search vendor "Cisco" for product "Asa 5555-x"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5580 Firmware
Search vendor "Cisco" for product "Asa 5580 Firmware"
9.9\(2\)
Search vendor "Cisco" for product "Asa 5580 Firmware" and version "9.9\(2\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5580
Search vendor "Cisco" for product "Asa 5580"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5580 Firmware
Search vendor "Cisco" for product "Asa 5580 Firmware"
9.9\(2.21\)
Search vendor "Cisco" for product "Asa 5580 Firmware" and version "9.9\(2.21\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5580
Search vendor "Cisco" for product "Asa 5580"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5580 Firmware
Search vendor "Cisco" for product "Asa 5580 Firmware"
9.9\(2.52\)
Search vendor "Cisco" for product "Asa 5580 Firmware" and version "9.9\(2.52\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5580
Search vendor "Cisco" for product "Asa 5580"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5580 Firmware
Search vendor "Cisco" for product "Asa 5580 Firmware"
9.9\(2.55\)
Search vendor "Cisco" for product "Asa 5580 Firmware" and version "9.9\(2.55\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5580
Search vendor "Cisco" for product "Asa 5580"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5585-x Firmware
Search vendor "Cisco" for product "Asa 5585-x Firmware"
9.9\(2\)
Search vendor "Cisco" for product "Asa 5585-x Firmware" and version "9.9\(2\)"
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Affected
in Cisco
Search vendor "Cisco"
Asa 5585-x
Search vendor "Cisco" for product "Asa 5585-x"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5585-x Firmware
Search vendor "Cisco" for product "Asa 5585-x Firmware"
9.9\(2.21\)
Search vendor "Cisco" for product "Asa 5585-x Firmware" and version "9.9\(2.21\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5585-x
Search vendor "Cisco" for product "Asa 5585-x"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5585-x Firmware
Search vendor "Cisco" for product "Asa 5585-x Firmware"
9.9\(2.52\)
Search vendor "Cisco" for product "Asa 5585-x Firmware" and version "9.9\(2.52\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5585-x
Search vendor "Cisco" for product "Asa 5585-x"
--
Safe
Cisco
Search vendor "Cisco"
Asa 5585-x Firmware
Search vendor "Cisco" for product "Asa 5585-x Firmware"
9.9\(2.55\)
Search vendor "Cisco" for product "Asa 5585-x Firmware" and version "9.9\(2.55\)"
-
Affected
in Cisco
Search vendor "Cisco"
Asa 5585-x
Search vendor "Cisco" for product "Asa 5585-x"
--
Safe
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
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6.2.3.13
Search vendor "Cisco" for product "Firepower Threat Defense" and version "6.2.3.13"
-
Affected
Cisco
Search vendor "Cisco"
Firepower Threat Defense
Search vendor "Cisco" for product "Firepower Threat Defense"
6.2.3.14
Search vendor "Cisco" for product "Firepower Threat Defense" and version "6.2.3.14"
-
Affected
Cisco
Search vendor "Cisco"
Firepower Threat Defense
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6.2.3.15
Search vendor "Cisco" for product "Firepower Threat Defense" and version "6.2.3.15"
-
Affected