CVE-2018-0228 Details

CVE-2018-0228

Published: 2018-04-19
Last Modified: 2020-09-04
CVE Author: NIST National Vulnerability Database
CVE Assigner: psirt@cisco.com
Summary

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.

Analysis
Common Vulnerability Score System v2.0
Severity High
Base Score 7.8/10
Exploit Score 10/10
Access Vector Network
Access Complexity Low
Authentication None
Impact Score 6.9/10
Confidentiality Impact None
Availability Impact Complete
Integrity Impact None
Vector String AV:N/AC:L/Au:N/C:N/I:N/A:C
Common Vulnerability Score System v3.1
Severity High
Base Score 8.6/10
Exploit Score 3.9/10
Access Vector Network
Access Complexity Low
Privileges Required None
Impact Score 4/10
Confidentiality Impact None
Availability Impact High
Integrity Impact None
Scope Changed
User Interaction None
Vector String CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Products Reported
CPE Vulnerable Start Excluding
cpe:2.3:a:cisco:adaptive_security_appliance_software:*:*:*:* Yes 9.1 9.1.7.20
cpe:2.3:a:cisco:adaptive_security_appliance_software:*:*:*:* Yes 9.8 9.8.2.14
cpe:2.3:a:cisco:adaptive_security_appliance_software:*:*:*:* Yes 9.9 9.9.1
cpe:2.3:a:cisco:adaptive_security_appliance_software:98.1\(1 Yes - -
cpe:2.3:a:cisco:adaptive_security_appliance_software:*:*:*:* Yes 9.2 9.2.4.27
cpe:2.3:a:cisco:adaptive_security_appliance_software:*:*:*:* Yes 9.5 9.6.3.17
cpe:2.3:a:cisco:adaptive_security_appliance_software:*:*:*:* Yes 9.3 9.4.4.13
cpe:2.3:a:cisco:adaptive_security_appliance_software:*:*:*:* Yes 9.7 9.7.1.16
cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* Yes 6.2.0 6.2.0.5
cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* Yes 6.0 6.1.0.6
cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* Yes 6.2.1 6.2.2.2
References

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-
http://www.securitytracker.com/id/1040724
https://ics-cert.us-cert.gov/advisories/ICSA-18-184-01
http://www.securityfocus.com/bid/104220

CVE ID
CVE-2018-0228
Published
2018-04-19
Modified
2020-09-04
CVSSv2.0
High
CVSSv3.1
High
PCI Compliance
Pass
US-CERT Alert
No
CWE
CWE-667

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