6.1 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
0.001 Low
EPSS
Percentile
36.9%
Successful exploitation of this vulnerability could allow an attacker to execute arbitrary code to exfiltrate data and perform any action within the user’s browser session.
The following versions B&R System Diagnostics Manager, used to diagnose B&R controllers, are affected:
A reflected cross-site scripting (XSS) vulnerability exists in System Diagnostics Manager of B&R Automation Runtime versions >=3.00 and <=C4.93 that enables a remote attacker to execute arbitrary JavaScript in the context of the user’s browser session.
CVE-2022-4286 has been assigned to this vulnerability. A CVSS v3 base score of 6.1 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N).
CISA discovered a public proof of concept (PoC) as authored by S. Robertz and G. Hechenberger of SEC Consult Vulnerability Lab and reported to B&R Industrial Automation.
B&R recommends users to update to the latest version of the product at earliest convenience (instructions to install updates is described in the user manual):
B&R also recommends the following workarounds to mitigate the risk of exploitation:
CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. Specifically, users should:
CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures. Specifically, users should:
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 at 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.
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.
CISA also recommends users take the following measures to protect themselves from social engineering attacks:
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2022-4286
cisa.gov/ics
cisa.gov/ics
cwe.mitre.org/data/definitions/79.html
public.govdelivery.com/accounts/USDHSCISA/subscriber/new?topic_id=USDHSCISA_138
twitter.com/CISAgov
twitter.com/intent/tweet?text=B%26R%20Systems%20Diagnostics%20Manager+https://www.cisa.gov/news-events/ics-advisories/icsa-23-068-02
us-cert.cisa.gov/ics/Recommended-Practices
us-cert.cisa.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf
www.br-automation.com/downloads_br_productcatalogue/assets/1675607299099-en-original-1.0.pdf
www.br-automation.com/downloads_br_productcatalogue/assets/1675607299099-en-original-1.0.pdf
www.br-automation.com/en/downloads/#categories=Software-1344987434933/Automation+Runtime-1344987435077=undefined/Automation+Studio+4.12-1654436096778=undefined/fullText=D0493
www.cisa.gov/uscert/ics/alerts/ICS-ALERT-10-301-01
www.cisa.gov/uscert/ics/alerts/ICS-ALERT-10-301-01
www.cisa.gov/uscert/ics/tips/ICS-TIP-12-146-01B
www.cisa.gov/uscert/ncas/tips/ST04-014
www.cisa.gov/uscert/sites/default/files/publications/emailscams_0905.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-23-068-02&title=B%26R%20Systems%20Diagnostics%20Manager
www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
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-23-068-02
www.oig.dhs.gov/
www.surveymonkey.com/r/CISA-cyber-survey?product=https://www.cisa.gov/news-events/ics-advisories/icsa-23-068-02
www.usa.gov/
www.whitehouse.gov/
www.youtube.com/@cisagov
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