Vulnerability Name:

CVE-2020-3255 (CCN-181512)

Assigned:2019-12-12
Published:2020-05-06
Updated:2020-05-12
Summary:A vulnerability in the packet processing functionality of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to inefficient memory management. An attacker could exploit this vulnerability by sending a high rate of IPv4 or IPv6 traffic through an affected device. This traffic would need to match a configured block action in an access control policy. An exploit could allow the attacker to cause a memory exhaustion condition on the affected device, which would result in a DoS for traffic transiting the device, as well as sluggish performance of the management interface. Once the flood is stopped, performance should return to previous states.
CVSS v3 Severity:7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/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): High
7.5 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 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:H/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): High
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
7.8 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-400
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2020-3255

Source: XF
Type: UNKNOWN
cisco-cve20203255-dos(181512)

Source: CCN
Type: Cisco Security Advisory cisco-sa-ftd-dos-N2vQZASR
Cisco Firepower Threat Defense Software Packet Flood Denial of Service Vulnerability

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

Vulnerable Configuration:Configuration 1:
  • cpe:/a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* (Version >= 6.2.3 and < 6.2.3.16)
  • OR cpe:/a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* (Version >= 6.3.0 and < 6.3.0.6)
  • OR cpe:/a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* (Version >= 6.4.0 and < 6.4.0.9)

    • Configuration 2:
  • cpe:/o:cisco:asa_5505_firmware:9.10(1.3):*:*:*:*:*:*:*
  • AND
  • cpe:/h:cisco:asa_5505:-:*:*:*:*:*:*:*

    • Configuration 3:
  • cpe:/o:cisco:asa_5510_firmware:9.10(1.3):*:*:*:*:*:*:*
  • AND
  • cpe:/h:cisco:asa_5510:-:*:*:*:*:*:*:*

    • Configuration 4:
  • cpe:/o:cisco:asa_5512-x_firmware:9.10(1.3):*:*:*:*:*:*:*
  • AND
  • cpe:/h:cisco:asa_5512-x:-:*:*:*:*:*:*:*

    • Configuration 5:
  • cpe:/o:cisco:asa_5515-x_firmware:9.10(1.3):*:*:*:*:*:*:*
  • AND
  • cpe:/h:cisco:asa_5515-x:-:*:*:*:*:*:*:*

    • Configuration 6:
  • cpe:/o:cisco:asa_5520_firmware:9.10(1.3):*:*:*:*:*:*:*
  • AND
  • cpe:/h:cisco:asa_5520:-:*:*:*:*:*:*:*

    • Configuration 7:
  • cpe:/o:cisco:asa_5525-x_firmware:9.10(1.3):*:*:*:*:*:*:*
  • AND
  • cpe:/h:cisco:asa_5525-x:-:*:*:*:*:*:*:*

    • Configuration 8:
  • cpe:/o:cisco:asa_5540_firmware:9.10(1.3):*:*:*:*:*:*:*
  • AND
  • cpe:/h:cisco:asa_5540:-:*:*:*:*:*:*:*

    • Configuration 9:
  • cpe:/o:cisco:asa_5545-x_firmware:9.10(1.3):*:*:*:*:*:*:*
  • AND
  • cpe:/h:cisco:asa_5545-x:-:*:*:*:*:*:*:*

    • Configuration 10:
  • cpe:/o:cisco:asa_5550_firmware:9.10(1.3):*:*:*:*:*:*:*
  • AND
  • cpe:/h:cisco:asa_5550:-:*:*:*:*:*:*:*

    • Configuration 11:
  • cpe:/o:cisco:asa_5555-x_firmware:9.10(1.3):*:*:*:*:*:*:*
  • AND
  • cpe:/h:cisco:asa_5555-x:-:*:*:*:*:*:*:*

    • Configuration 12:
  • cpe:/o:cisco:asa_5580_firmware:9.10(1.3):*:*:*:*:*:*:*
  • AND
  • cpe:/h:cisco:asa_5580:-:*:*:*:*:*:*:*

    • Configuration 13:
  • cpe:/o:cisco:asa_5585-x_firmware:9.10(1.3):*:*:*:*:*:*:*
  • AND
  • cpe:/h:cisco:asa_5585-x:-:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    cisco firepower threat defense *
    cisco firepower threat defense *
    cisco firepower threat defense *
    cisco asa 5505 firmware 9.10(1.3)
    cisco asa 5505 -
    cisco asa 5510 firmware 9.10(1.3)
    cisco asa 5510 -
    cisco asa 5512-x firmware 9.10(1.3)
    cisco asa 5512-x -
    cisco asa 5515-x firmware 9.10(1.3)
    cisco asa 5515-x -
    cisco asa 5520 firmware 9.10(1.3)
    cisco asa 5520 -
    cisco asa 5525-x firmware 9.10(1.3)
    cisco asa 5525-x -
    cisco asa 5540 firmware 9.10(1.3)
    cisco asa 5540 -
    cisco asa 5545-x firmware 9.10(1.3)
    cisco asa 5545-x -
    cisco asa 5550 firmware 9.10(1.3)
    cisco asa 5550 -
    cisco asa 5555-x firmware 9.10(1.3)
    cisco asa 5555-x -
    cisco asa 5580 firmware 9.10(1.3)
    cisco asa 5580 -
    cisco asa 5585-x firmware 9.10(1.3)
    cisco asa 5585-x -