7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
8.3 High
AI Score
Confidence
High
9.3 High
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C
0.933 High
EPSS
Percentile
99.1%
CVSS v3 7.5
Vendor: PEPPERL+FUCHS
**Equipment:**VisuNet RM, VisuNet PC, Box Thin Client (BTC)
**Vulnerability:**Improper Authentication
Successful exploitation of this vulnerability could allow attackers to intercept sensitive communications, establish a man-in-the-middle attack, achieve administrator privileges, and execute remote code.
The following PEPPERL+FUCHS product families are affected:
An authentication vulnerability within CredSSP may allow interception of user credentials resulting in remote code execution.
CVE-2018-0886 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been calculated; the CVSS vector string is (AV: N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H).
Eyal Karni, Yaron Zinar, and Roman Blachman with Preempt Research Labs reported this vulnerability to PEPPRL+FUCHS, who then reported it to NCCIC.
PEPPRL+FUCHS recommends users using HMI devices within VisuNet RM, VisuNet PC or BTC product families follow these guidelines:
<https://www.pepperl-fuchs.com/cgi-bin/db/doci.pl/?ShowDocByDocNo=18-33400c>
<https://www.pepperl-fuchs.com/cgi-bin/db/doci.pl/?ShowDocByDocNo=18-33624>
<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0866>
For more information CERT@VDE has released a security advisory found at:
<https://cert.vde.com/de-de/advisories/vde-2018-008>
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-12-146-01B–Targeted 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.
NCCIC also recommends that users take the following measures to protect themselves from social engineering attacks:
No known public exploits specifically target this vulnerability. This vulnerability is not exploitable remotely. High skill level is needed to exploit.
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2018-0886
cert.vde.com/de-de/advisories/vde-2018-008
cwe.mitre.org/data/definitions/287.html
portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0866
public.govdelivery.com/accounts/USDHSCISA/subscriber/new?topic_id=USDHSCISA_138
twitter.com/CISAgov
twitter.com/intent/tweet?text=PEPPERL%2BFUCHS%20VisuNet%20RM%2C%20VisuNet%20PC%2C%20and%20Box%20Thin%20Client+https://www.cisa.gov/news-events/ics-advisories/icsa-18-198-03
www.dhs.gov
www.dhs.gov/foia
www.dhs.gov/performance-financial-reports
www.facebook.com/CISA
www.facebook.com/sharer/sharer.php?u=https://www.cisa.gov/news-events/ics-advisories/icsa-18-198-03&title=PEPPERL%2BFUCHS%20VisuNet%20RM%2C%20VisuNet%20PC%2C%20and%20Box%20Thin%20Client
www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
www.instagram.com/cisagov
www.linkedin.com/company/cybersecurity-and-infrastructure-security-agency
www.linkedin.com/sharing/share-offsite/?url=https://www.cisa.gov/news-events/ics-advisories/icsa-18-198-03
www.oig.dhs.gov/
www.pepperl-fuchs.com/cgi-bin/db/doci.pl/?ShowDocByDocNo=18-33400c
www.pepperl-fuchs.com/cgi-bin/db/doci.pl/?ShowDocByDocNo=18-33624
www.surveymonkey.com/r/CISA-cyber-survey?product=https://www.cisa.gov/news-events/ics-advisories/icsa-18-198-03
www.usa.gov/
www.whitehouse.gov/
www.youtube.com/@cisagov
mailto:?subject=PEPPERL%2BFUCHS%20VisuNet%20RM%2C%20VisuNet%20PC%2C%20and%20Box%20Thin%20Client&body=www.cisa.gov/news-events/ics-advisories/icsa-18-198-03
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
8.3 High
AI Score
Confidence
High
9.3 High
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C
0.933 High
EPSS
Percentile
99.1%