Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2020-27265

Severity CVSS v4.0:
Pending analysis
Type:
CWE-787 Out-of-bounds Write
Publication date:
14/01/2021
Last modified:
21/01/2021

Description

KEPServerEX: v6.0 to v6.9, ThingWorx Kepware Server: v6.8 and v6.9, ThingWorx Industrial Connectivity: All versions, OPC-Aggregator: All versions, Rockwell Automation KEPServer Enterprise, GE Digital Industrial Gateway Server: v7.68.804 and v7.66, Software Toolbox TOP Server: All 6.x versions are vulnerable to a stack-based buffer overflow. Opening a specifically crafted OPC UA message could allow an attacker to crash the server and remotely execute code.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 9.80 CRITICAL
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x
9.80
Severity 3.x
CRITICAL
Vector 2.0
AV:N/AC:L/Au:N/C:P/I:P/A:P CVSS v2.0 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): Physical
Availability (A): Physical

Base Score 2.0
7.50
Severity 2.0
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:ge:industrial_gateway_server:7.66:*:*:*:*:*:*:*
cpe:2.3:a:ge:industrial_gateway_server:7.68.804:*:*:*:*:*:*:*
cpe:2.3:a:ptc:kepware_kepserverex:6.0:*:*:*:*:*:*:*
cpe:2.3:a:ptc:kepware_kepserverex:6.9:*:*:*:*:*:*:*
cpe:2.3:a:ptc:opc-aggregator:-:*:*:*:*:*:*:*
cpe:2.3:a:ptc:thingworx_industrial_connectivity:-:*:*:*:*:*:*:*
cpe:2.3:a:ptc:thingworx_kepware_server:6.8:*:*:*:*:*:*:*
cpe:2.3:a:ptc:thingworx_kepware_server:6.9:*:*:*:*:*:*:*
cpe:2.3:a:rockwellautomation:kepserver_enterprise:6.6.504.0:*:*:*:*:*:*:*
cpe:2.3:a:rockwellautomation:kepserver_enterprise:6.9.572.0:*:*:*:*:*:*:*
cpe:2.3:a:softwaretoolbox:top_server:*:*:*:*:*:*:*:* 6.0 (including) 6.9 (including)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools