CVE-2023-3825
Last modified
CVE-2023-3825 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 0.77% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Kepware | Kepserverex | >= 6.0.0, <= 6.14.263 |
References
- https://www.cisa.gov/news-events/ics-advisories/icsa-23-208-02Third Party Advisory, US Government Resource
- https://www.cisa.gov/news-events/ics-advisories/icsa-23-208-02Third Party Advisory, US Government Resource
Timeline
- Published
- Last Modified
- Status
- Modified
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