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Johnson Controls exacqVision Server

Monitor6.4ICS-CERT ICSA-24-214-05Aug 1, 2024
Attack VectorAdjacent
Auth RequiredNone
ComplexityHigh
User InteractionRequired
Summary

Johnson Controls exacqVision Server versions 24.03 and earlier contain a TLS validation vulnerability (CWE-295) that allows an attacker on the same network segment to perform a man-in-the-middle attack and intercept communications between the Client and Server. This could allow interception of surveillance video streams and potential manipulation of control commands. The vulnerability requires the attacker to be on the same network segment and has high attack complexity, but no authentication is required. The advisory does not report active exploitation in the wild.

What this means
What could happen
An attacker could intercept and potentially modify communications between exacqVision Client and Server if they are on the same network segment, compromising the integrity of video surveillance data and control commands in security monitoring systems.
Who's at risk
Organizations operating video surveillance and physical security monitoring systems using Johnson Controls exacqVision Server should prioritize this fix. This affects security monitoring stations, command centers, and any facility relying on exacqVision for centralized video surveillance and event management.
How it could be exploited
An attacker positioned on the same network segment (AV:A) as the exacqVision Client and Server could perform a man-in-the-middle attack to intercept unencrypted or inadequately validated TLS communications. The attack requires user interaction (e.g., clicking a malicious link) and has high complexity, but if successful allows interception of surveillance data and potential command injection.
Prerequisites
  • Network access to the same network segment (AV:A) as exacqVision Client and Server
  • User interaction required (UI:R) - likely a user action to trigger the vulnerable code path
  • No authentication required (PR:N)
  • High attack complexity - specific conditions must be met for exploitation
Man-in-the-middle attack vectoraffects security/surveillance systemsrequires network adjacency (reduces risk but still exploitable in shared network environments)user interaction requiredhigh attack complexity
Exploitability
Low exploit probability (EPSS 0.2%)
Affected products (1)
ProductAffected VersionsFix Status
exacqVision Server: <=24.03≤ 24.0324.06
Remediation & Mitigation
0/5
Do now
0/2
HARDENINGRestrict network access to exacqVision devices to authorized surveillance workstations and monitoring stations only
WORKAROUNDIf remote access is required, use a VPN to encrypt communications between remote clients and the exacqVision Server
Schedule — requires maintenance window
0/2

Patching may require device reboot — plan for process interruption

HOTFIXUpdate exacqVision Client to version 24.06 or later
HOTFIXUpdate exacqVision Server to version 24.06 or later
Long-term hardening
0/1
HARDENINGIsolate exacqVision Server and Client devices from business networks using firewalls and network segmentation
View full CISA ICS-CERT advisory
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