Revision History
Revision History
Version 1.0 – September 12, 2023
Affected Products
| Affected Product | First Known in Software Version | Corrected in Software Version |
| KEPServer Enterprise | v11.00 | Expected November 2023 |
Vulnerability Details
Rockwell Automation was notified by CISA of vulnerabilities discovered in Kepware® KEPServerEX (also known as PTC ThingWorx Industrial Connectivity), which affects Rockwell Automation’s KEPServer Enterprise product. Successful exploitation of these vulnerabilities could allow a threat actor to gain elevated privileges, execute arbitrary code, and obtain server hashes and credentials.
CVE 2023-29444 KEPServer Enterprise Uncontrolled Search Path Element
The installer application of KEPServerEX is vulnerable to DLL search order hijacking. This could allow an adversary to repackage the installer with a malicious DLL and trick users into installing the trojanized software. Successful exploitation could lead to code execution with administrator privileges.
CVSS Base Score: 6.3 /10 (Medium)
CVSS 3.1 Vector String: AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H
CWE-427: Uncontrolled Search Path Element
CVE 2023-29445 KEPServer Enterprise Uncontrolled Search Path Element
KEPServerEX binary is vulnerable to DLL search order hijacking. A locally authenticated adversary could escalate privileges to administrator by planting a malicious DLL in a specific directory.
CVSS Base Score: 6.3 /10 (Medium)
CVSS 3.1 Vector String: AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H
CWE-427: Uncontrolled Search Path Element
CVE 2023-29446 KEPServer Enterprise Improper Input Validation
KEPServerEx is vulnerable to UNC path injection via a malicious project file. By tricking a user into loading a project file and clicking a specific button in the GUI, an adversary could obtain Windows user NTLMv2 hashes, and crack them offline.
CVSS Base Score: 4.7 /10 (Medium)
CVSS 3.1 Vector String: AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
CWE-20: Improper Input Validation
CVE 2023-29447 KEPServer Enterprise Insufficiently Protected Credentials
The KEPServerEX Configuration web server uses basic authentication to protect user credentials. An adversary could perform a man-in-the-middle (MitM) attack via ARP spoofing to obtain the web server's plaintext credentials.
CVSS Base Score: 5.7 /10 (Medium)
CVSS 3.1 Vector String: AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CWE-522: Insufficiently Protected Credentials
Known Exploited Vulnerability (KEV) database: No
Customers can use Stakeholder-Specific Vulnerability Categorization to generate environment-specific prioritization.
Risk Mitigation & User Action
Customers using the affected versions are encouraged to apply the risk mitigations below and implement our suggested security best practices to minimize risk of this vulnerability in their environments.
- Users should follow the directions in PTC’s secure configuration documentation.
- Implement QA43240 - Recommended Security Guidelines from Rockwell Automation.
Additional Resources
