CVE-2023-3825

Published Jul 31, 2023

Last updated 2 years ago

CVSS high 7.5

Overview

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.
Source: ics-cert@hq.dhs.gov
NVD status: Analyzed

Risk scores

CVSS 3.1

Type: Primary
Base score: 7.5
Impact score: 3.6
Exploitability score: 3.9
Vector string: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Severity: HIGH

Weaknesses

nvd@nist.gov: CWE-787
ics-cert@hq.dhs.gov: CWE-400

Hype score: Not currently trending

Configurations

[
  {
    "nodes": [
      {
        "negate": false,
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:a:kepware:kepserverex:*:*:*:*:*:*:*:*",
            "vulnerable": true,
            "matchCriteriaId": "4BCC4117-EFB3-4627-941D-B105A539D986",
            "versionEndIncluding": "6.14.263",
            "versionStartIncluding": "6.0.0"
          }
        ],
        "operator": "OR"
      }
    ]
  }
]

Overview

Risk scores

CVSS 3.1

Weaknesses

Social media

Configurations

References