victor Web Client and C•CURE Web Client JSON Web Token (JWT) Vulnerability
CVE-2020-9049

7.1HIGH

Key Information:

Vendor

Johnson Controls

Status
Victor Web Client Version 5.6 And Prior
C•cure Web Client Version 2.90 And Prior (note - This Does Not Affect The New Web-based C•cure 9000 Client That Was Introduced In C•cure 9000 V2.90)
Vendor
CVE Published:
19 November 2020

What is CVE-2020-9049?

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 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.

Affected Version(s)

C•CURE Web Client version 2.90 and prior (Note - This does not affect the new web-based C•CURE 9000 client that was introduced in C•CURE 9000 v2.90) <= 2.90

victor Web Client version 5.6 and prior <= 5.6

References

https://www.johnsoncontrols.com/cyber-solutions/security-...
x_refsource_CONFIRM
https://us-cert.cisa.gov/ics/advisories/icsa-20-324-01
third-party-advisoryx_refsource_CERT
https://us-cert.cisa.gov/ics/advisories/icsa-20-324-01
x_refsource_MISC

CVSS V3.1

Score:
7.1
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Joachim Kerschbaumer reported this vulnerability to Johnson Controls, Inc.
.