Vulnerability Name:

CVE-2020-3334 (CCN-181506)

Assigned:2019-12-12
Published:2020-05-06
Updated:2020-05-15
Summary:A vulnerability in the ARP packet processing of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 2100 Series Security Appliances could allow an unauthenticated, adjacent attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition on an affected device. The vulnerability is due to incorrect processing of ARP packets received by the management interface of an affected device. An attacker could exploit this vulnerability by sending a series of unicast ARP packets in a short timeframe that would reach the management interface of an affected device. A successful exploit could allow the attacker to consume resources on an affected device, which would prevent the device from sending internal system keepalives and eventually cause the device to reload, resulting in a denial of service (DoS) condition.
CVSS v3 Severity:7.4 High (CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H)
6.4 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Adjacent
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Changed
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
7.4 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H)
6.4 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Adjacent
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Changed
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:6.1 Medium (CVSS v2 Vector: AV:A/AC:L/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Adjacent_Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
6.1 Medium (CCN CVSS v2 Vector: AV:A/AC:L/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Adjacent_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-2020-3334

Source: XF
Type: UNKNOWN
cisco-cve20203334-dos(181506)

Source: CCN
Type: Cisco Security Advisory cisco-sa-fp2100-arp-dos-kLdCK8ks
Cisco Firepower 2100 Series Security Appliances ARP Denial of Service Vulnerability

Source: CISCO
Type: Vendor Advisory
20200506 Cisco Firepower 2100 Series Security Appliances ARP Denial of Service Vulnerability

Vulnerable Configuration:Configuration 1:
  • cpe:/a:cisco:adaptive_security_appliance:*:*:*:*:*:*:*:* (Version >= 9.10 and < 9.10.1.37)
  • OR cpe:/a:cisco:adaptive_security_appliance:*:*:*:*:*:*:*:* (Version >= 9.12 and < 9.12.3)
  • OR cpe:/a:cisco:adaptive_security_appliance:*:*:*:*:*:*:*:* (Version >= 9.13 and < 9.13.1.2)

    • Configuration 2:
  • cpe:/a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* (Version < 6.6.0)
  • AND
  • cpe:/h:cisco:firepower_2110:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:firepower_2120:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:firepower_2130:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:firepower_2140:-:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:cisco:adaptive_security_appliance_software:9.13:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    cisco adaptive security appliance *
    cisco adaptive security appliance *
    cisco adaptive security appliance *
    cisco firepower threat defense *
    cisco firepower 2110 -
    cisco firepower 2120 -
    cisco firepower 2130 -
    cisco firepower 2140 -
    cisco adaptive security appliance software 9.13