Vulnerability Description
PTC’s KEPServerEX Versions 6.0 to 6.14.263 are vulnerable to being made to read a recursively defined object that leads to uncontrolled resource consumption. KEPServerEX uses OPC UA, a protocol which defines various object types that can be nested to create complex arrays. It does not implement a check to see if such an object is recursively defined, so an attack could send a maliciously created message that the decoder would try to decode until the stack overflowed and the device crashed.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Kepware | Kepserverex | >= 6.0.0, <= 6.14.263 |
Related Weaknesses (CWE)
References
- https://www.cisa.gov/news-events/ics-advisories/icsa-23-208-02Third Party AdvisoryUS Government Resource
- https://www.cisa.gov/news-events/ics-advisories/icsa-23-208-02Third Party AdvisoryUS Government Resource
FAQ
What is CVE-2023-3825?
CVE-2023-3825 is a vulnerability with a CVSS score of 7.5 (HIGH). PTC’s KEPServerEX Versions 6.0 to 6.14.263 are vulnerable to being made to read a recursively defined object that leads to uncontrolled resource consumption. KEPServerEX uses OPC UA, a protocol which...
How severe is CVE-2023-3825?
CVE-2023-3825 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-3825?
Check the references section above for vendor advisories and patch information. Affected products include: Kepware Kepserverex.