7.5 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
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
8.1 High
AI Score
Confidence
High
0.002 Low
EPSS
Percentile
58.9%
CVSS v3 9.8
**ATTENTION:**Exploitable remotely/low skill level to exploit/public exploits are available
Vendor: Fuji Electric
**Equipment:**Alpha5 Smart Loader
Vulnerabilities: Classic Buffer Overflow, Heap-based Buffer Overflow
This updated advisory is a follow-up to the original advisory titled ICSA-18-270-02 Fuji Electric Alpha5 Smart Loader that was published September 27, 2018, on the NCCIC/ICS-CERT website. This advisory includes mitigations for a classic buffer overflow and heap-based buffer overflow vulnerabilities in the Fuji Electric Alpha5 Smart Loader product.
Successful exploitation of these vulnerabilities could allow for arbitrary remote code execution on the device.
The following versions of Alpha5 Smart Loader, a servo drive, are affected:
A buffer overflow information disclosure vulnerability occurs when parsing certain file types.
CVE-2018-14788 has been assigned to this vulnerability. A CVSS v3 base score of 5.3 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N).
The device does not perform a check on the length/size of a project file before copying the entire contents of the file to a heap-based buffer.
CVE-2018-14794 has been assigned to this vulnerability. A CVSS v3 base score of 9.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
Michael Flanders working with Trend Microβs Zero Day Initiative reported these vulnerabilities to NCCIC.
--------- Begin Update A Part 1 of 1 ---------
Fuji Electric has released a new version of the Alpha Loader software that can be obtained from (login required):
https://felib.fujielectric.co.jp/download/login.htm?site=global&lang=en
--------- End Update A Part 1 of 1 ---------
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.
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2018-14788
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2018-14794
cwe.mitre.org/data/definitions/120.html
cwe.mitre.org/data/definitions/122.html
felib.fujielectric.co.jp/download/login.htm?site=global&lang=en
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:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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mailto:?subject=Fuji%20Electric%20Alpha5%20Smart%20Loader%20%28Update%20A%29&body=www.cisa.gov/news-events/ics-advisories/icsa-18-270-02
7.5 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
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
8.1 High
AI Score
Confidence
High
0.002 Low
EPSS
Percentile
58.9%