10 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
0.028 Low
EPSS
Percentile
90.7%
**ATTENTION:**Remotely exploitable/low skill level to exploit.
Vendor: GE
Equipment: D60 Line Distance Relay
Vulnerabilities: Stack-based Buffer Overflow, Improper Restriction of Operations within the Bounds of a Memory Buffer
The following versions of the D60 Line Distance Relay are affected:
Successful exploitation of these vulnerabilities could allow a remote attacker to execute arbitrary code on the device.
GE has released firmware that addresses the vulnerabilities. The latest firmware can be obtained from:
https://www.gegridsolutions.com/app/ViewFiles.aspx?prod=d60&type=7
Authentication will be required to download the firmware.
NCCIC recommends 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 in the NCCIC Technical Information Paper, ICS-TIP-12-146-01B–Targeted Cyber Intrusion Detection and Mitigation Strategies, that is available for download from the ICS-CERT website.
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.
Multiple stack-based buffer overflow vulnerabilities have been identified, which may allow remote code execution.
CVE-2018-5475 has been assigned to this vulnerability. A CVSS v3 base score of 9.8 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
The SSH functions of the device are vulnerable to buffer overflow conditions that may allow a remote attacker to execute arbitrary code on the device.
CVE-2018-5473 has been assigned to this vulnerability. A CVSS v3 base score of 9.8 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
Kirill Nesterov of Kaspersky Labs discovered these vulnerabilities, and GE and Kasperksy Labs reported and coordinated the vulnerabilities with NCCIC.
Critical Infrastructure Sectors: Energy
Countries/Areas Deployed: Worldwide
Company Headquarters Location: USA
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2018-5473
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2018-5475
cwe.mitre.org/data/definitions/119.html
cwe.mitre.org/data/definitions/121.html
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mailto:?subject=GE%20D60%20Line%20Distance%20Relay&body=www.cisa.gov/news-events/ics-advisories/icsa-18-046-02
10 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
0.028 Low
EPSS
Percentile
90.7%