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7.5 High

CVE-2023-3825 PTC’s KEPServerEX Versions 6.0 to 6.14.263 are vulnerable to being made to read a recursively defined object that…

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.

Affected products and versions

Product Affected versions Fixed in
KEPServerEX 6.0 6.0 → 6.14.263 No fix stated

Other CVEs of KEPServerEX

The 3 CVEs of KEPServerEX →
CVE-2023-5909 KEPServerEX does not properly validate certificates from clients which may allow unauthenticated users to connect 7.5 High CVE-2023-5908 KEPServerEX is vulnerable to a buffer overflow which may allow an attacker to crash the product being accessed or leak… 9.1 Critical
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