Summary
Successful exploitation of this vulnerability could allow an unauthenticated attacker on the network to create and sign their own JSON web token and use it to execute an HTTP API method without the need for valid authentication/authorization. Under certain circumstances, this could be used by an attacker to impact system availability by conducting a denial-of-service attack.
Vulnerabilities 1
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High 7.1
victor Web Client and C•CURE Web Client JSON Web Token (JWT) Vulnerability
A vulnerability in specified versions of American Dynamics victor Web Client and Software House C•CURE Web Client could allow an unauthenticated attacker on the network to create and sign their own JSON Web Token and use it to execute an HTTP API Method witho…
Revision history
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#1
ICSA-20-324-01 Johnson Controls Sensormatic Electronics American Dynamics victor Web Client
References
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ICS Advisory ICSA-20-324-01 Web Version
https://www.cisa.gov/news-events/ics-advisories/icsa-20-324-01
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Recommended Practices
https://us-cert.cisa.gov/ics/alerts/ICS-ALERT-10-301-01
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Recommended Practices
https://us-cert.cisa.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf
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Recommended Practices
https://us-cert.cisa.gov/ics/tips/ICS-TIP-12-146-01B