10 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
10 High
AI Score
Confidence
High
0.003 Low
EPSS
Percentile
70.5%
Successful exploitation of this vulnerability could allow an attacker to gain administrative access to DeltaV Smart Switches.
The following versions of DeltaV DCS, a software management platform, include the vulnerable Smart Switch Command Center:
The Smart Switch Command Center does not change the DeltaV Smart Switch management account password upon commissioning as expected, leaving the default password in effect indefinitely.
CVE-2018-11691 has been assigned to this vulnerability. A CVSS v3 base score of 6.1 has been calculated; the CVSS vector string is (AV:A/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H).
Benjamin Crosasso of Sanofi reported this vulnerability to Emerson.
Emerson recommends users patch affected products. Details are available within article DSN19003 (KBA# NK-1900-0808). Software patches and DSN19003 are available to users with access to the Emerson Guardian Support Portal at the following link:
<https://guardian.emersonprocess.com/> (Login Required)
To limit exposure to these and other vulnerabilities, Emerson recommends that DeltaV systems and related components be deployed and configured as described in the DeltaV security manual, which can be found in Emersonβs Guardian Support Portal.
NCCIC recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. Specifically, users should:
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. This vulnerability is not exploitable remotely.
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2018-11691
cwe.mitre.org/data/definitions/798.html
guardian.emersonprocess.com/
ics-cert.us-cert.gov/
ics-cert.us-cert.gov/alerts/ICS-ALERT-10-301-01
ics-cert.us-cert.gov/content/recommended-practices
ics-cert.us-cert.gov/tips/ICS-TIP-12-146-01B
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www.us-cert.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf
www.usa.gov/
www.whitehouse.gov/
www.youtube.com/@cisagov
mailto:?subject=Emerson%20DeltaV%20Distributed%20Control%20System&body=www.cisa.gov/news-events/ics-advisories/icsa-19-190-01
10 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
10 High
AI Score
Confidence
High
0.003 Low
EPSS
Percentile
70.5%