CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS
Percentile
29.3%
Successful exploitation of these vulnerabilities might result in false alerts being issued to broadcast or cable sites that are immediately connected to the compromised system.
The following versions of DASDEC, an emergency communication system, are affected:
3.2.1 IMPROPER NEUTRALIZATION OF INPUT DURING WEB PAGE GENERATION (βCROSS-SITE SCRIPTINGβ) CWE-79
Digital Alert Systemsβ DASDEC software prior to version 4.1 contains a cross-site scripting (XSS) vulnerability where remote attackers could inject arbitrary web script or HTML code via the username field of the login page or the HTTP host header. The injected content is stored in logs and rendered when viewed in the web application.
CVE-2019-18265 has been assigned to this vulnerability. A CVSS v3 base score of 4.7 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N).
3.2.2 IMPROPER NEUTRALIZATION OF INPUT DURING WEB PAGE GENERATION (βCROSS-SITE SCRIPTINGβ) CWE-79
Affected versions of Digital Alert Systemsβ DASDEC software contain a XSS vulnerability via the Host Header in undisclosed pages after login.
CVE-2022-40204 has been assigned to this vulnerability. A CVSS v3 base score of 4.1 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N).
Ken Pyle reported these vulnerabilities to CISA.
Digital Alert Systems recommends users update systems to the latest version. CVE-2019-18265 has been patched as of Version 4.1, CVE-2022-40204 will be fixed in a future patch.
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.
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-12-146-01BβTargeted 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.gov/ics
cisa.gov/ics
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cwe.mitre.org/data/definitions/79.html
cwe.mitre.org/data/definitions/79.html
nvd.nist.gov/vuln/detail/CVE-2019-18265
nvd.nist.gov/vuln/detail/CVE-2022-40204
public.govdelivery.com/accounts/USDHSCISA/subscriber/new?topic_id=USDHSCISA_138
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us-cert.cisa.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf
www.cisa.gov/uscert/ics/alerts/ICS-ALERT-10-301-01
www.cisa.gov/uscert/ics/tips/ICS-TIP-12-146-01B
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