7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.3 High
AI Score
Confidence
Low
0.0004 Low
EPSS
Percentile
5.2%
Successful exploitation of these vulnerabilities could allow privilege escalation or denial of service.
AVEVA has created a security update to address vulnerabilities in the AVEVA Operations Control Logger (formerly known as ArchestrA Logger), impacting the following products:
3.2.1 Execution with Unnecessary Privileges CWE-250
This privilege escalation vulnerability, if exploited, cloud allow a local OS-authenticated user with standard privileges to escalate to System privilege on the machine where these products are installed, resulting in complete compromise of the target machine.
CVE-2023-33873 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:L/UI:N/S:U/C:H/I:H/A:H).
3.2.2 External Control of File Name or Path CWE-73
This external control vulnerability, if exploited, could allow a local OS-authenticated user with standard privileges to delete files with System privilege on the machine where these products are installed, resulting in denial of service.
CVE-2023-34982 has been assigned to this vulnerability. A CVSS v3 base score of 5.5 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).
Lukasz Piotrowski from Equinor reported these vulnerabilities to AVEVA.
AVEVA recommends that organizations evaluate the impact of these vulnerabilities based on their operational environment, architecture, and product implementation. Users of affected products should apply security updates as soon as possible.
In addition to applying security updates, users should follow these general precautions:
Please see AVEVA Security Bulletin number AVEVA-2023-003 for more information and for links for individual security updates and mitigations for each of the affected products.
AVEVA System Platform 2020 through 2020 R2 SP1 cannot be newly installed on top of other AVEVA products which have been previously patched with the Operations Control Logger v22.1. For additional details please refer to Alert 000038736.
CISA recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities, such as:
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 cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.
CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets.
Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B–Targeted Cyber Intrusion Detection and Mitigation Strategies.
Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.
No known public exploitation specifically targeting these vulnerabilities has been reported to CISA at this time. These vulnerabilities are not exploitable remotely.
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-33873
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-34982
cwe.mitre.org/data/definitions/250.html
cwe.mitre.org/data/definitions/73.html
github.com/cisagov/CSAF
public.govdelivery.com/accounts/USDHSCISA/subscriber/new?topic_id=USDHSCISA_138
softwaresupportsp.aveva.com/#/knowledgebase/details/000038736?lang=en_us
twitter.com/CISAgov
twitter.com/intent/tweet?text=AVEVA%20Operations%20Control%20Logger+https://www.cisa.gov/news-events/ics-advisories/icsa-23-318-01
us-cert.cisa.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf
www.aveva.com/en/support-and-success/cyber-security-updates/
www.cisa.gov/resources-tools/resources/ics-recommended-practices
www.cisa.gov/sites/default/files/publications/Cybersecurity_Best_Practices_for_Industrial_Control_Systems.pdf
www.cisa.gov/topics/industrial-control-systems
www.cisa.gov/topics/industrial-control-systems
www.cisa.gov/uscert/ics/alerts/ICS-ALERT-10-301-01
www.cisa.gov/uscert/ics/tips/ICS-TIP-12-146-01B
www.dhs.gov
www.dhs.gov/foia
www.dhs.gov/performance-financial-reports
www.facebook.com/CISA
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www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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mailto:?subject=AVEVA%20Operations%20Control%20Logger&body=www.cisa.gov/news-events/ics-advisories/icsa-23-318-01
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.3 High
AI Score
Confidence
Low
0.0004 Low
EPSS
Percentile
5.2%