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
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
EPSS
Percentile
86.2%
CVSS v3 7.3
**ATTENTION:**Exploitable remotely/low skill level to exploit
**Vendor:**Delta Electronics
Equipment: Delta Industrial Automation DOPSoft
Vulnerabilities: Out-of-bounds Read, Heap-based Buffer Overflow, Stack-based Buffer Overflow
Successful exploitation of these vulnerabilities could allow a remote attacker to read sensitive information, execute arbitrary code, and/or crash the application.
The following versions of DOPSoft, a Human Machine Interface (HMI) editing software, are affected:
The application performs read operations on a memory buffer where the position can be determined by a value read from a .dpa file. This may cause improper restriction of operations within the bounds of the memory buffer, allow remote code execution, alter the intended control flow, allow reading of sensitive information, or cause the application to crash.
CVE-2018-10623 has been assigned to this vulnerability. A CVSS v3 base score of 7.3 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L).
The application utilizes a fixed-length heap buffer where a value larger than the buffer can be read from a .dpa file into the buffer, causing the buffer to be overwritten. This may allow remote code execution or cause the application to crash.
CVE-2018-10617 has been assigned to this vulnerability. A CVSS v3 base score of 7.3 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L).
The application utilizes a fixed-length stack buffer where a value larger than the buffer can be read from a .dpa file into the buffer, causing the buffer to be overwritten. This may allow remote code execution or cause the application to crash.
CVE-2018-10621 has been assigned to this vulnerability. A CVSS v3 base score of 7.3 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L).
B0nd @garagehackers working with Trend Microβs Zero Day Initiative reported the vulnerabilities to NCCIC.
Delta Electronics recommends affected users update to the latest version found at:
Delta Electronics also recommends affected users restrict the interaction with the application to trusted files.
NCCIC recommends that users take defensive measures to minimize the risk of exploitation of these vulnerabilities. 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 to other incidents.
NCCIC also recommends that users take the following measures to protect themselves from social engineering attacks:
No known public exploits specifically target these vulnerabilities.
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2018-10617
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2018-10621
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2018-10623
www.deltaww.com/Products/PluginWebUserControl/downloadCenterCounter.aspx?DID=9063&DocPath=1&hl=en-US
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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
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
EPSS
Percentile
86.2%