National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2018-0228 Detail

Current Description

A vulnerability in the ingress flow creation functionality of Cisco Adaptive Security Appliance (ASA) could allow an unauthenticated, remote attacker to cause the CPU to increase upwards of 100% utilization, causing a denial of service (DoS) condition on an affected system. The vulnerability is due to incorrect handling of an internal software lock that could prevent other system processes from getting CPU cycles, causing a high CPU condition. An attacker could exploit this vulnerability by sending a steady stream of malicious IP packets that can cause connections to be created on the targeted device. A successful exploit could allow the attacker to exhaust CPU resources, resulting in a DoS condition during which traffic through the device could be delayed. This vulnerability applies to either IPv4 or IPv6 ingress traffic. This vulnerability affects Cisco Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD) Software that is running on the following Cisco products: 3000 Series Industrial Security Appliances (ISA), ASA 5500 Series Adaptive Security Appliances, ASA 5500-X Series Next-Generation Firewalls, ASA Services Module for Cisco Catalyst 6500 Series Switches and Cisco 7600 Series Routers, Adaptive Security Virtual Appliances (ASAv), Firepower 2100 Series Security Appliances, Firepower 4110 Security Appliances, Firepower 9300 ASA Security Modules. Cisco Bug IDs: CSCvf63718.

Source:  MITRE
Description Last Modified:  04/19/2018
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 8.6 HIGH
Vector: AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H (V3 legend)
Impact Score: 4.0
Exploitability Score: 3.9


Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Changed
Confidentiality (C): None
Integrity (I): None
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 7.8 HIGH
Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:C) (V2 legend)
Impact Subscore: 6.9
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Complete
Additional Information:
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.securityfocus.com/bid/104220
http://www.securitytracker.com/id/1040724 Third Party Advisory VDB Entry
https://ics-cert.us-cert.gov/advisories/ICSA-18-184-01
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-asa2 Mitigation Vendor Advisory

Technical Details

Vulnerability Type (View All)

  • Resource Management Errors (CWE-399)

Vulnerable software and versions Switch to CPE 2.2

Configuration 1
OR
cpe:2.3:a:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*    versions from (including) 9.1 up to (excluding) 9.1.7.20
cpe:2.3:a:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*    versions from (including) 9.2 up to (excluding) 9.2.4.27
cpe:2.3:a:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*    versions from (including) 9.3 up to (excluding) 9.4.4.13
cpe:2.3:a:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*    versions from (including) 9.5 up to (excluding) 9.6.3.17
cpe:2.3:a:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*    versions from (including) 9.7 up to (excluding) 9.7.1.16
cpe:2.3:a:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*    versions from (including) 9.8 up to (excluding) 9.8.2.14
cpe:2.3:a:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*    versions from (including) 9.9 up to (excluding) 9.9.1
cpe:2.3:a:cisco:adaptive_security_appliance_software:98.1\(12.187\):*:*:*:*:*:*:*
Configuration 2
OR
cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*    versions from (including) 6.0 up to (excluding) 6.1.0.6
cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*    versions from (including) 6.2.0 up to (excluding) 6.2.0.5
cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*    versions from (including) 6.2.1 up to (excluding) 6.2.2.2

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

3 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-0228
NVD Published Date:
04/19/2018
NVD Last Modified:
07/05/2018