9.3 High
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
8.8 High
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:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
9.7 High
AI Score
Confidence
High
0.006 Low
EPSS
Percentile
78.3%
CVSS v3 8.8
ATTENTION: Exploitable remotely/low skill level to exploit
Vendor: WECON Technology Co., Ltd
**Equipment:**LeviStudioU
--------- Begin Update A Part 1 of 3 ---------
--------- End Update A Part 1 of 3 ---------
This updated advisory is a follow-up to the original advisory titled ICSA-18-212-03 WECON LeviStudioU that was published July 31, 2018, on the NCCIC/ICS-CERT website.
Successful exploitation of these vulnerabilities could allow an attacker to execute remote code.
According to Zero Day Initiative (ZDI) the following product and versions are affected:
4.2.1 STACK-BASED BUFFER OVERFLOW CWE-121
Multiple stack-based buffer overflow vulnerabilities can be exploited when the application processes specially crafted project files.
CVE-2018-10602 has been assigned to this vulnerability. A CVSS v3 base score of 8.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).
4.2.2 HEAP-BASED BUFFER OVERFLOW CWE-122
Multiple heap-based buffer overflow vulnerabilities can be exploited when the application processes specially crafted project files.
CVE-2018-10606 has been assigned to this vulnerability. A CVSS v3 base score of 8.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).
--------- Begin Update A Part 2 of 3 --------
An out-of-bounds vulnerability can be exploited when the application processes specially crafted project files.
CVE-2018-10610 has been assigned to this vulnerability. A CVSS v3 base score of 8.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).
An XXE vulnerability can be exploited when the application processes specially crafted project XML files.
CVE-2018-10614 has been assigned to this vulnerability. A CVSS v3 base score of 6.5 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N).
--------- End Update A Part 2 of 3 --------
--------- Begin Update A Part 3 of 3 --------
The NSFOCUS security team and Ghirmay Desta, working with Trend Microβs Zero Day Initiative, and Mat Powell and Jose Luis Zayas Banderas of Trend Microβs Zero Day Initiative reported these vulnerabilities to NCCIC.
--------- End Update A Part 3 of 3 --------
Updating to the latest version of LeviStudioU may address some of the vulnerabilities.
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 these vulnerabilities.
cve.mitre.org/cgi-bin/cvename.cgi?name=2018-10602
cve.mitre.org/cgi-bin/cvename.cgi?name=2018-10606
cve.mitre.org/cgi-bin/cvename.cgi?name=2018-10610
cve.mitre.org/cgi-bin/cvename.cgi?name=2018-10614
cwe.mitre.org/data/definitions/121.html
cwe.mitre.org/data/definitions/122.html
cwe.mitre.org/data/definitions/611.html
cwe.mitre.org/data/definitions/787.html
public.govdelivery.com/accounts/USDHSCISA/subscriber/new?topic_id=USDHSCISA_138
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9.3 High
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
8.8 High
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:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
9.7 High
AI Score
Confidence
High
0.006 Low
EPSS
Percentile
78.3%