CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
76.4%
CVSS v3 8.6
**ATTENTION:**Exploitable remotely/low skill level to exploit
**Vendor:**Rockwell Automation
Equipment: Stratix 5950
Vulnerability: Improper Input Validation
Successful exploitation of this vulnerability could allow a remote attacker to cause an affected device to reload.
The following Allen-Bradley Stratix 5950 security appliance products are affected by a vulnerability in the Cisco IPsec driver code:
Sending malformed IPsec packets to an affected device could allow an unauthenticated remote attacker to cause the device to reload. IPsec is disabled by default in the Allen-Bradley Stratix 5950 devices.
CVE-2018-0472 has been assigned to this vulnerability. A CVSS v3 base score of 8.6 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H).
Rockwell Automation reported this vulnerability to NCCIC.
IPsec is disabled by default in the Allen-Bradley Stratix 5950 devices.
Rockwell Automation recommends that users not use any IPsec virtual private network (VPN) connections, including the following:
Rockwell Automation also recommends users apply the following general guidelines:
For additional information, see Rockwell Automationβs security advisory, which can be found at the following link:
<https://rockwellautomation.custhelp.com/app/answers/detail/a_id/1082688> (Login required)
Ciscoβs security disclosure for this vulnerability is available at the following link:
<https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180926-ipsec>
NCCIC reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.
NCCIC also provides a section for control systems security recommended practices on the ICS-CERT web page. Several recommended practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.
Additional mitigation guidance and recommended practices are publicly available on the ICS-CERT website in the Technical Information Paper, ICS-TIP-12-146-01BβTargeted Cyber Intrusion Detection and Mitigation Strategies.
Organizations observing any suspected malicious activity should follow their established internal procedures and report their findings to NCCIC for tracking and correlation against other incidents.
No known public exploits specifically target this vulnerability.
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2018-0472
cisasurvey.gov1.qualtrics.com/jfe/form/SV_9n4TtB8uttUPaM6?product=https://www.cisa.gov/news-events/ics-advisories/icsa-19-094-04
cwe.mitre.org/data/definitions/20.html
public.govdelivery.com/accounts/USDHSCISA/subscriber/new?topic_id=USDHSCISA_138
rockwellautomation.custhelp.com/app/answers/detail/a_id/1082688
tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180926-ipsec
twitter.com/CISAgov
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mailto:?subject=Rockwell%20Automation%20Stratix%205950&body=www.cisa.gov/news-events/ics-advisories/icsa-19-094-04
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
76.4%