CVE-2018-7502 Information

Description

Kernel drivers in Beckhoff TwinCAT 3.1 Build 4022.4 TwinCAT 2.11 R3 2259 and TwinCAT 3.1 lack proper validation of user-supplied pointer values. An attacker who is able to execute code on the target may be able to exploit this vulnerability to obtain SYSTEM privileges.

CVSS Vector

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Reference

http://www.securityfocus.com/bid/103487 https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2018-001.pdf https://ics-cert.us-cert.gov/advisories/ICSA-18-081-02 https://srcincite.io/advisories/src-2018-0007/

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8