The underlying feedback mechanism of Rockwell Automation's FactoryTalk System Services that transfers the FactoryTalk Policy Manager rules to relevant devices on the network does not verify that the origin of the communication is from a legitimate local client device.  This may allow a threat actor to craft a malicious website that, when visited, will send a malicious script that can connect to the local WebSocket endpoint and wait for events as if it was a valid client device. If successfully exploited, this would allow a threat actor to receive information including whether FactoryTalk Policy Manager is installed and potentially the entire security policy. 
Published 2023-06-13 21:15:10
Updated 2023-06-26 16:22:05
View at NVD,   CVE.org

Products affected by CVE-2023-2639

Exploit prediction scoring system (EPSS) score for CVE-2023-2639

0.05%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 18 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2023-2639

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
4.7
MEDIUM CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N
2.8
1.4
NIST
4.1
MEDIUM CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N
2.3
1.4
Rockwell Automation

CWE ids for CVE-2023-2639

  • The product does not properly verify that the source of data or communication is valid.
    Assigned by:
    • nvd@nist.gov (Primary)
    • PSIRT@rockwellautomation.com (Secondary)

References for CVE-2023-2639

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