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
9.3 High
AI Score
Confidence
High
0.01 Low
EPSS
Percentile
83.7%
CVSS v3 8.8
**ATTENTION:**Exploitable remotely/low skill level to exploit
**Vendor:**Delta Electronics
Equipment: CNCSoft and ScreenEditor
Vulnerabilities: Stack-based Buffer Overflow, Out-of-Bounds Read
Successful exploitation of these vulnerabilities could allow an attacker to gain remote code execution with administrator privileges.
According to Delta Electronics, the following products are affected:
3.2.1 STACK-BASED BUFFER OVERFLOW CWE-121
Multiple stack-based buffer overflow vulnerabilities cause the software to crash due to lacking user input validation before copying data from project files onto the stack.
CVE-2018-10636 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).
3.2.2 OUT-OF-BOUNDS READ CWE-125
Two out-of-bounds read vulnerabilities cause the software to crash due to lacking user input validation for processing project files.
CVE-2018-10598 has been assigned to this vulnerability. A CVSS v3 base score of 4.3 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H).
Mat Powell working with Trend Microβs Zero Day Initiative reported CVE-2018-10598 to NCCIC. Natnael Samson (Natti) working with Trend Micro Zero Day Initiative reported CVE-2018-10636 to NCCIC.
Delta Electronics recommends the following:
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.
www.deltaww.com/Products/PluginWebUserControl/downloadCenterCounter.aspx?DID=84&DocPath=1&hl=en-US
cve.mitre.org/cgi-bin/cvename.cgi?name=2018-10598
cve.mitre.org/cgi-bin/cvename.cgi?name=2018-10636
cwe.mitre.org/data/definitions/121.html
cwe.mitre.org/data/definitions/125.html
public.govdelivery.com/accounts/USDHSCISA/subscriber/new?topic_id=USDHSCISA_138
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mailto:?subject=Delta%20Electronics%20CNCSoft%20and%20ScreenEditor&body=www.cisa.gov/news-events/ics-advisories/icsa-18-219-01
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
9.3 High
AI Score
Confidence
High
0.01 Low
EPSS
Percentile
83.7%