CVE-2018-0230 Details

CVE-2018-0230

Published: 2018-04-19
Last Modified: 2019-10-09
CVE Author: NIST National Vulnerability Database
CVE Assigner: cve@mitre.org
Summary

A vulnerability in the internal packet-processing functionality of Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 2100 Series Security Appliances could allow an unauthenticated, remote attacker to cause an affected device to stop processing traffic, resulting in a denial of service (DoS) condition. The vulnerability is due to the affected software improperly validating IP Version 4 (IPv4) and IP Version 6 (IPv6) packets after the software reassembles the packets (following IP Fragmentation). An attacker could exploit this vulnerability by sending a series of malicious, fragmented IPv4 or IPv6 packets to an affected device. A successful exploit could allow the attacker to cause Snort processes on the affected device to hang at 100% CPU utilization, which could cause the device to stop processing traffic and result in a DoS condition until the device is reloaded manually. This vulnerability affects Cisco Firepower Threat Defense (FTD) Software Releases 6.2.1 and 6.2.2, if the software is running on a Cisco Firepower 2100 Series Security Appliance. Cisco Bug IDs: CSCvf91098.

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:3.0/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:firepower_threat_defense:6.2.1:*:*:*:*:*:*:* Yes - -
cpe:2.3:a:cisco:firepower_threat_defense:6.2.2:*:*:*:*:*:*:* Yes - -
cpe:2.3:a:cisco:adaptive_security_appliance_software:9.8\(2\ Yes - -
References

http://www.securityfocus.com/bid/103931
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-

CVE ID
CVE-2018-0230
Published
2018-04-19
Modified
2019-10-09
CVSSv2.0
High
CVSSv3.1
High
PCI Compliance
Pass
US-CERT Alert
No
CWE
CWE-400

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