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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
70.5%
Successful exploitation of these vulnerabilities could allow unauthorized write access or remote code execution.
Schneider Electric reports these vulnerabilities affect the following EcoStruxure products:
An attacker could exploit an SQL injection vulnerability by enticing a user to open a maliciously crafted project file.
CVE-2020-7493 has been assigned to this vulnerability. A CVSS v3 base score of 8.6 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H).
An attacker could exploit this path traversal vulnerability by getting a user to visit a malicious page or open a malicious file.
CVE-2020-7494 has been assigned to this vulnerability. A CVSS v3 base score of 7.7 has been calculated; the CVSS vector string is (AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H).
An attacker could exploit this path traversal vulnerability by getting a user to visit a malicious page or open a malicious file.
CVE-2020-7495 has been assigned to this vulnerability. A CVSS v3 base score of 3.3 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N).
A remote attacker can trick a victim to open a specially crafted project file and gain unauthorized write access to the target system.
CVE-2020-7496 has been assigned to this vulnerability. A CVSS v3 base score of 3.3 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N).
A vulnerability exists that could cause arbitrary application execution when the computer starts.
CVE-2020-7497 has been assigned to this vulnerability. A CVSS v3 base score of 6.3 has been calculated; the CVSS vector string is (AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H).
The following researchers reported these vulnerabilities to Schneider Electric:
Schneider Electric recommends users update to EcoStruxure Operator Terminal Expert Version 3.1 Service Pack 1A. Schneider Electric offers two methods to get the update:
In addition to the update, Schneider Electric also recommends the following workarounds and mitigations to reduce the risk:
For more information on these vulnerabilities and updates, please see SEVD-2020-133-04
CISA recommends users take the following measures to protect themselves from social engineering attacks:
CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.
CISA also provides a section for control systems security recommended practices on the ICS webpage on us-cert.gov. 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 webpage on us-cert.gov in the Technical Information Paper, ICS-TIP-12-146-01B–Targeted Cyber Intrusion Detection and Mitigation Strategies.
Organizations observing any suspected malicious activity should follow their established internal procedures and report their findings to CISA for tracking and correlation against other incidents.
These vulnerabilities are not exploitable remotely.
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-7493
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-7494
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-7495
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-7496
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-7497
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cwe.mitre.org/data/definitions/88.html
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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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
70.5%