6.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8.4 High
AI Score
Confidence
High
0.003 Low
EPSS
Percentile
71.2%
Successful exploitation of these vulnerabilities may result in remote code execution.
The following versions of IGSS are affected:
An improper restriction of operations within the bounds of a memory buffer vulnerability could cause remote code execution when a malicious CGF (Configuration Group File) is imported to IGSS Definition.
CVE-2020-7550 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).
An improper restriction of operations within the bounds of a memory buffer vulnerability could cause remote code execution when a malicious CGF (Configuration Group File) is imported to IGSS Definition.
CVE-2020-7551 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).
An improper restriction of operations within the bounds of a memory buffer vulnerability could cause remote code execution when a malicious CGF (Configuration Group File) is imported to IGSS Definition.
CVE-2020-7552 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).
An out-of-bounds write vulnerability could cause remote code execution when a malicious CGF (Configuration Group File) is imported to IGSS Definition.
CVE-2020-7553 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).
An improper restriction of operations within the bounds of a memory buffer vulnerability could cause remote code execution when a malicious CGF (Configuration Group File) is imported to IGSS Definition.
CVE-2020-7554 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).
An out-of-bounds write vulnerability could cause remote code execution when a malicious CGF (Configuration Group File) file is imported to IGSS Definition.
CVE-2020-7555 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).
An out-of-bounds write vulnerability could cause remote code execution when a malicious CGF (Configuration Group File) is imported to IGSS Definition.
CVE-2020-7556 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).
An out-of-bounds read vulnerability could cause remote code execution when a malicious CGF (Configuration Group File) is imported to IGSS Definition.
CVE-2020-7557 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).
An out-of-bounds write vulnerability could cause remote code execution when a malicious CGF (Configuration Group File) is imported to IGSS Definition.
CVE-2020-7558 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).
Kimiya, working with Trend Microβs Zero Day Initiative, reported these vulnerabilities to CISA.
Schneider Electric has provided a new version of the IGSS Definition module to address these vulnerabilities. Users are recommended to update to IGSS Version 14.0.0.20248
Alternatively, the following workarounds and mitigations can be applied to reduce risk:
For more information, see Schneider Electric security notification SEVD-2020-315-03
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.cisa.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.cisa.gov 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 CISA for tracking and correlation against other incidents.
No known public exploits specifically target these vulnerabilities. These vulnerabilities are not exploitable remotely.
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-7550
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-7551
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-7552
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-7553
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-7554
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-7555
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-7556
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-7557
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-7558
cwe.mitre.org/data/definitions/119.html
cwe.mitre.org/data/definitions/119.html
cwe.mitre.org/data/definitions/119.html
cwe.mitre.org/data/definitions/119.html
cwe.mitre.org/data/definitions/125.html
cwe.mitre.org/data/definitions/787.html
cwe.mitre.org/data/definitions/787.html
cwe.mitre.org/data/definitions/787.html
cwe.mitre.org/data/definitions/787.html
igss.schneider-electric.com/igss/igssupdates/v140/IGSSUPDATE.ZIP
igss.schneider-electric.com/licensed-versions/
public.govdelivery.com/accounts/USDHSCISA/subscriber/new?topic_id=USDHSCISA_138
twitter.com/CISAgov
twitter.com/intent/tweet?text=Schneider%20Electric%20Interactive%20Graphical%20SCADA%20System%20%28IGSS%29+https://www.cisa.gov/news-events/ics-advisories/icsa-20-324-04
us-cert.cisa.gov/ics
us-cert.cisa.gov/ics
us-cert.cisa.gov/ics/recommended-practices
us-cert.cisa.gov/ics/tips/ICS-TIP-12-146-01B
us-cert.cisa.gov/ncas/tips/ST04-014
us-cert.cisa.gov/sites/default/files/publications/emailscams_0905.pdf
us-cert.cisa.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf
www.dhs.gov
www.dhs.gov/foia
www.dhs.gov/performance-financial-reports
www.facebook.com/CISA
www.facebook.com/sharer/sharer.php?u=https://www.cisa.gov/news-events/ics-advisories/icsa-20-324-04&title=Schneider%20Electric%20Interactive%20Graphical%20SCADA%20System%20%28IGSS%29
www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
www.instagram.com/cisagov
www.linkedin.com/company/cybersecurity-and-infrastructure-security-agency
www.linkedin.com/sharing/share-offsite/?url=https://www.cisa.gov/news-events/ics-advisories/icsa-20-324-04
www.oig.dhs.gov/
www.se.com/ww/en/download/document/SEVD-2020-315-03/
www.surveymonkey.com/r/CISA-cyber-survey?product=https://www.cisa.gov/news-events/ics-advisories/icsa-20-324-04
www.usa.gov/
www.whitehouse.gov/
www.youtube.com/@cisagov
mailto:?subject=Schneider%20Electric%20Interactive%20Graphical%20SCADA%20System%20%28IGSS%29&body=www.cisa.gov/news-events/ics-advisories/icsa-20-324-04
6.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8.4 High
AI Score
Confidence
High
0.003 Low
EPSS
Percentile
71.2%