SB2023090139 - Multiple vulnerabilities in PTC Kepware KepServerEX and ThingWorx Kepware Server

Description

This security bulletin contains information about 4 secuirty vulnerabilities.

1) Insecure DLL loading (CVE-ID: CVE-2023-29444)

The vulnerability allows a local user to compromise vulnerable system.

The vulnerability exists due to the application loads DLL libraries in an insecure manner. A local administrator can place a specially crafted .dll file and execute arbitrary code on victim's system.

2) Insecure DLL loading (CVE-ID: CVE-2023-29445)

The vulnerability allows a local user to compromise vulnerable system.

The vulnerability exists due to the application loads DLL libraries in an insecure manner. A local administrator can place a specially crafted .dll file and gain elevated privileges on the system.

3) Path traversal (CVE-ID: CVE-2023-29446)

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences. A remote attacker can trick a victim to load a specially crafted project file and read arbitrary files on the system.

4) Insufficiently protected credentials (CVE-ID: CVE-2023-29447)

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to insufficiently protected credentials. A remote attacker on the local network can perform a man-in-the-middle (MitM) attack via ARP spoofing and obtain the web server's plaintext credentials.

Remediation

Install update from vendor's website.

References

• https://www.cisa.gov/news-events/ics-advisories/icsa-23-243-03
• https://www.ptc.com/en/support/article/cs399528