CVSS2
Attack Vector
NETWORK
Attack 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
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
Percentile
59.5%
**ATTENTION:**Remotely exploitable/low skill level to exploit.
Vendor: Wecon Technologies
Equipment: LEVI Studio HMI Editor
Vulnerabilities: Heap-Based Buffer Overflow, Stack-Based Buffer Overflow
The following versions of LEVI Studio HMI Editor, a HMI programming software, are affected:
Successful exploitation of these vulnerabilities could cause the device to become unresponsive; a buffer overflow condition may allow remote code execution.
Wecon Technologies recommends that affected users upgrade to Version 1.8.1 of the software which can be downloaded from:
<http://www.we-con.com.cn/en/download/softwares/levi-series-hmi/>
NCCIC/ICS-CERT recommends that users take defensive measures to minimize the risk of exploitation of these vulnerabilities. Specifically, users should:
ICS-CERT reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.
ICS-CERT 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 in the ICSβCERT Technical Information Paper, ICS-TIP-12-146-01BβTargeted Cyber Intrusion Detection and Mitigation Strategies, that is available for download from the ICS-CERT web site.
Organizations observing any suspected malicious activity should follow their established internal procedures and report their findings to ICS-CERT for tracking and correlation against other incidents.
No known public exploits specifically target these vulnerabilities.
This vulnerability causes a buffer overflow when a maliciously crafted project file is run by the system.
CVE-2017-6037 has been assigned to this vulnerability. A CVSS v3 base score of 8.8 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).
This vulnerability causes a buffer overflow, which could result in denial of service when a malicious project file is run on the system.
CVE-2017-6035 has been assigned to this vulnerability. A CVSS v3 base score of 8.8 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).
Andrea (rgod) Micalizzi, working with iDefense Labs, reported these vulnerabilities.
Critical Infrastructure Sector(s): Critical Manufacturing
Countries/Areas Deployed: Worldwide
**Company Headquarters Location:**Fuzhou, Fujian, China
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2017-6035
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2017-6037
www.we-con.com.cn/en/download/softwares/levi-series-hmi/
cisasurvey.gov1.qualtrics.com/jfe/form/SV_9n4TtB8uttUPaM6?product=https://www.cisa.gov/news-events/ics-advisories/icsa-17-103-01
cwe.mitre.org/data/definitions/121.html
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public.govdelivery.com/accounts/USDHSCISA/subscriber/new?topic_id=USDHSCISA_138
twitter.com/CISAgov
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www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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mailto:?subject=Wecon%20Technologies%20LEVI%20Studio%20HMI%20Editor&body=www.cisa.gov/news-events/ics-advisories/icsa-17-103-01
CVSS2
Attack Vector
NETWORK
Attack 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
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
Percentile
59.5%