CVE-2023-29446: kepware Input Validation Flaw — Fix

Description

An improper input validation vulnerability has been discovered that could allow an adversary to inject a UNC path via a malicious project file. This allows an adversary to capture NLTMv2 hashes and potentially crack them offline.

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CVSS v3.1 Score

4.7

MEDIUM

CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N

Weakness Type (CWE)

CWE-40 CWE-40

CWE-20 Improper Input Validation

Affected Products

Vendor	Product	Versions
ptc	kepware_kepserverex	6.0.2107.0 — 6.14.263.0
ptc	thingworx_kepware_server	6.8 — 6.14.263.0
ptc	thingworx_industrial_connectivity	8.0 — 8.5

References

Advisories & Patches

https://www.ptc.com/en/support/article/cs399528 https://www.ptc.com/en/support/article/cs399528

Other References

https://www.cisa.gov/news-events/ics-advisories/icsa-23-243-03 https://www.dragos.com/advisory/ptcs-kepserverex-vulnerabilities/ https://www.cisa.gov/news-events/ics-advisories/icsa-23-243-03 https://www.dragos.com/advisory/ptcs-kepserverex-vulnerabilities/

Frequently Asked Questions

What is CVE-2023-29446? +

An improper input validation vulnerability has been discovered that could allow an adversary to inject a UNC path via a malicious project file. This allows an adversary to capture NLTMv2 hashes and potentially crack them offline. It has a CVSS v3.1 base score of 4.7 (MEDIUM).

How severe is CVE-2023-29446? +

CVE-2023-29446 has a CVSS v3.1 score of 4.7 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2023-29446? +

CVE-2023-29446 affects products from ptc, specifically: kepware_kepserverex, thingworx_industrial_connectivity, thingworx_kepware_server. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2023-29446? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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