6.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8.1 High
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
47.7%
CVSS v3 7.8
ATTENTION: Exploitable remotely/low skill level to exploit
Vendor: Fuji Electric
**Equipment:**V-Server Lite
Vulnerability: Classic Buffer Overflow
Successful exploitation of this vulnerability could allow a remote attacker to view sensitive information and disrupt the availability of the device.
The following versions of V-Server Lite, a data collection and management service, are affected:
A maliciously crafted project file may cause a buffer overflow, which may allow the attacker to execute arbitrary code.
CVE-2018-10637 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).
Ariele Caltabiano (kimiya) working with Trend Microβs Zero Day Initiative reported the vulnerability to NCCIC.
Fuji Electric has produced firmware update v4.0.4.0, which can be obtained here:
<http://monitouch.fujielectric.com/site/support-e/download-index-01.html>
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.
monitouch.fujielectric.com/site/support-e/download-index-01.html
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2018-10637
cwe.mitre.org/data/definitions/120.html
public.govdelivery.com/accounts/USDHSCISA/subscriber/new?topic_id=USDHSCISA_138
twitter.com/CISAgov
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www.dhs.gov/foia
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www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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mailto:?subject=Fuji%20Electric%20V-Server%20Lite&body=www.cisa.gov/news-events/ics-advisories/icsa-18-254-02
6.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8.1 High
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
47.7%