Vulnerability Name:

CVE-2020-3306 (CCN-181504)

Assigned:2019-12-12
Published:2020-05-06
Updated:2020-05-15
Summary:A vulnerability in the DHCP module of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on the affected device. The vulnerability is due to incorrect processing of certain DHCP packets. An attacker could exploit this vulnerability by sending a crafted DHCP packet to the affected device. A successful exploit could allow the attacker to cause a DoS condition on the affected device.
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
6.8 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H)
5.9 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): High
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:7.8 High (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
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
5.4 Medium (CCN CVSS v2 Vector: AV:N/AC:H/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): High
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-2020-3306

Source: XF
Type: UNKNOWN
cisco-cve20203306-dos(181504)

Source: CCN
Type: Cisco Security Advisory cisco-sa-asaftd-dos-qk8cTGLz
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software DHCP Denial of Service Vulnerability

Source: CISCO
Type: Vendor Advisory
20200506 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software DHCP Denial of Service Vulnerability

Vulnerable Configuration:Configuration 1:
  • cpe:/a:cisco:adaptive_security_appliance:*:*:*:*:*:*:*:* (Version < 9.6.4.34)
  • OR cpe:/a:cisco:adaptive_security_appliance:*:*:*:*:*:*:*:* (Version >= 9.7 and < 9.8.4.10)
  • OR cpe:/a:cisco:adaptive_security_appliance:*:*:*:*:*:*:*:* (Version >= 9.9 and < 9.10.1.30)
  • OR cpe:/a:cisco:adaptive_security_appliance:*:*:*:*:*:*:*:* (Version >= 9.12 and < 9.12.3)
  • AND
  • cpe:/h:cisco:asa_5505:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:asa_5510:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:asa_5512-x:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:asa_5515-x:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:asa_5520:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:asa_5525-x:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:asa_5550:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:asa_5555-x:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:asa_5580:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:asa_5585-x:-:*:*:*:*:*:*:*

    • Configuration 2:
  • cpe:/a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* (Version < 6.3.0.5)
  • OR cpe:/a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* (Version >= 6.4.0 and < 6.4.0.4)

    • * Denotes that component is vulnerable
    BACK
    cisco adaptive security appliance *
    cisco adaptive security appliance *
    cisco adaptive security appliance *
    cisco adaptive security appliance *
    cisco asa 5505 -
    cisco asa 5510 -
    cisco asa 5512-x -
    cisco asa 5515-x -
    cisco asa 5520 -
    cisco asa 5525-x -
    cisco asa 5550 -
    cisco asa 5555-x -
    cisco asa 5580 -
    cisco asa 5585-x -
    cisco firepower threat defense *
    cisco firepower threat defense *