Vulnerability Name:

CVE-2020-3188 (CCN-181527)

Assigned:2019-12-12
Published:2020-05-06
Updated:2021-08-12
Summary:A vulnerability in how Cisco Firepower Threat Defense (FTD) Software handles session timeouts for management connections could allow an unauthenticated, remote attacker to cause a buildup of remote management connections to an affected device, which could result in a denial of service (DoS) condition. The vulnerability exists because the default session timeout period for specific to-the-box remote management connections is too long. An attacker could exploit this vulnerability by sending a large and sustained number of crafted remote management connections to an affected device, resulting in a buildup of those connections over time. A successful exploit could allow the attacker to cause the remote management interface or Cisco Firepower Device Manager (FDM) to stop responding and cause other management functions to go offline, resulting in a DoS condition. The user traffic that is flowing through the device would not be affected, and the DoS condition would be isolated to remote management only.
CVSS v3 Severity:5.3 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
4.6 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Low
5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
4.6 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Low
CVSS v2 Severity:5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
Vulnerability Type:CWE-613
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2020-3188

Source: XF
Type: UNKNOWN
cisco-cve20203188-dos(181527)

Source: CCN
Type: Cisco Security Advisory cisco-sa-ftd-mgmt-interface-dos-FkG4MuTU
Cisco Firepower Threat Defense Software Management Interface Denial of Service Vulnerability

Source: CISCO
Type: Vendor Advisory
20200506 Cisco Firepower Threat Defense Software Management Interface Denial of Service Vulnerability

Vulnerable Configuration:Configuration 1:
  • cpe:/a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* (Version >= 6.4.0 and < 6.4.0.9)
  • OR cpe:/a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* (Version >= 6.5.0 and < 6.5.0.5)

    • Configuration 2:
  • cpe:/o:cisco:asa_5505_firmware:9.8(3):*:*:*:*:*:*:*
  • OR cpe:/o:cisco:asa_5505_firmware:101.6(1.96):*:*:*:*:*:*:*
  • AND
  • cpe:/h:cisco:asa_5505:-:*:*:*:*:*:*:*

    • Configuration 3:
  • cpe:/o:cisco:asa_5510_firmware:9.8(3):*:*:*:*:*:*:*
  • OR cpe:/o:cisco:asa_5510_firmware:101.6(1.96):*:*:*:*:*:*:*
  • AND
  • cpe:/h:cisco:asa_5510:-:*:*:*:*:*:*:*

    • Configuration 4:
  • cpe:/o:cisco:asa_5512-x_firmware:9.8(3):*:*:*:*:*:*:*
  • OR cpe:/o:cisco:asa_5512-x_firmware:101.6(1.96):*:*:*:*:*:*:*
  • AND
  • cpe:/h:cisco:asa_5512-x:-:*:*:*:*:*:*:*

    • Configuration 5:
  • cpe:/o:cisco:asa_5515-x_firmware:9.8(3):*:*:*:*:*:*:*
  • OR cpe:/o:cisco:asa_5515-x_firmware:101.6(1.96):*:*:*:*:*:*:*
  • AND
  • cpe:/h:cisco:asa_5515-x:-:*:*:*:*:*:*:*

    • Configuration 6:
  • cpe:/o:cisco:asa_5520_firmware:9.8(3):*:*:*:*:*:*:*
  • OR cpe:/o:cisco:asa_5520_firmware:101.6(1.96):*:*:*:*:*:*:*
  • AND
  • cpe:/h:cisco:asa_5520:-:*:*:*:*:*:*:*

    • Configuration 7:
  • cpe:/o:cisco:asa_5525-x_firmware:9.8(3):*:*:*:*:*:*:*
  • OR cpe:/o:cisco:asa_5525-x_firmware:101.6(1.96):*:*:*:*:*:*:*
  • AND
  • cpe:/h:cisco:asa_5525-x:-:*:*:*:*:*:*:*

    • Configuration 8:
  • cpe:/o:cisco:asa_5540_firmware:9.8(3):*:*:*:*:*:*:*
  • OR cpe:/o:cisco:asa_5540_firmware:101.6(1.96):*:*:*:*:*:*:*
  • AND
  • cpe:/h:cisco:asa_5540:-:*:*:*:*:*:*:*

    • Configuration 9:
  • cpe:/o:cisco:asa_5545-x_firmware:9.8(3):*:*:*:*:*:*:*
  • OR cpe:/o:cisco:asa_5545-x_firmware:101.6(1.96):*:*:*:*:*:*:*
  • AND
  • cpe:/h:cisco:asa_5545-x:-:*:*:*:*:*:*:*

    • Configuration 10:
  • cpe:/o:cisco:asa_5550_firmware:9.8(3):*:*:*:*:*:*:*
  • OR cpe:/o:cisco:asa_5550_firmware:101.6(1.96):*:*:*:*:*:*:*
  • AND
  • cpe:/h:cisco:asa_5550:-:*:*:*:*:*:*:*

    • Configuration 11:
  • cpe:/o:cisco:asa_5555-x_firmware:9.8(3):*:*:*:*:*:*:*
  • OR cpe:/o:cisco:asa_5555-x_firmware:101.6(1.96):*:*:*:*:*:*:*
  • AND
  • cpe:/h:cisco:asa_5555-x:-:*:*:*:*:*:*:*

    • Configuration 12:
  • cpe:/o:cisco:asa_5580_firmware:9.8(3):*:*:*:*:*:*:*
  • OR cpe:/o:cisco:asa_5580_firmware:101.6(1.96):*:*:*:*:*:*:*
  • AND
  • cpe:/h:cisco:asa_5580:-:*:*:*:*:*:*:*

    • Configuration 13:
  • cpe:/o:cisco:asa_5585-x_firmware:9.8(3):*:*:*:*:*:*:*
  • OR cpe:/o:cisco:asa_5585-x_firmware:101.6(1.96):*:*:*:*:*:*:*
  • AND
  • cpe:/h:cisco:asa_5585-x:-:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:cisco:firepower_threat_defense_software:*:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    cisco firepower threat defense *
    cisco firepower threat defense *
    cisco asa 5505 firmware 9.8(3)
    cisco asa 5505 firmware 101.6(1.96)
    cisco asa 5505 -
    cisco asa 5510 firmware 9.8(3)
    cisco asa 5510 firmware 101.6(1.96)
    cisco asa 5510 -
    cisco asa 5512-x firmware 9.8(3)
    cisco asa 5512-x firmware 101.6(1.96)
    cisco asa 5512-x -
    cisco asa 5515-x firmware 9.8(3)
    cisco asa 5515-x firmware 101.6(1.96)
    cisco asa 5515-x -
    cisco asa 5520 firmware 9.8(3)
    cisco asa 5520 firmware 101.6(1.96)
    cisco asa 5520 -
    cisco asa 5525-x firmware 9.8(3)
    cisco asa 5525-x firmware 101.6(1.96)
    cisco asa 5525-x -
    cisco asa 5540 firmware 9.8(3)
    cisco asa 5540 firmware 101.6(1.96)
    cisco asa 5540 -
    cisco asa 5545-x firmware 9.8(3)
    cisco asa 5545-x firmware 101.6(1.96)
    cisco asa 5545-x -
    cisco asa 5550 firmware 9.8(3)
    cisco asa 5550 firmware 101.6(1.96)
    cisco asa 5550 -
    cisco asa 5555-x firmware 9.8(3)
    cisco asa 5555-x firmware 101.6(1.96)
    cisco asa 5555-x -
    cisco asa 5580 firmware 9.8(3)
    cisco asa 5580 firmware 101.6(1.96)
    cisco asa 5580 -
    cisco asa 5585-x firmware 9.8(3)
    cisco asa 5585-x firmware 101.6(1.96)
    cisco asa 5585-x -
    cisco firepower threat defense software *