CVE-2020-27267

Severity Score

9.1

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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, and Software Toolbox TOP Server all 6.x versions, are vulnerable to a heap-based buffer overflow. Opening a specifically crafted OPC UA message could allow an attacker to crash the server and potentially leak data.

KEPServerEX versiones v6.0 hasta v6.9, ThingWorx Kepware Server versiones v6.8 y v6.9, ThingWorx Industrial Connectivity (todas las versiones), OPC-Aggregator (todas las versiones), Rockwell Automation KEPServer Enterprise, GE Digital Industrial Gateway Server versiones v7.68.804 y v7.66, y Software Toolbox TOP Server, todas las versiones 6.x, son vulnerables a un desbordamiento del búfer en la región heap de la memoria. Abrir un mensaje OPC UA específicamente diseñado podría permitir a un atacante bloquear el servidor y potencialmente filtrar datos

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-10-19 CVE Reserved
2021-01-13 CVE Published
2024-01-02 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-416: Use After Free
CWE-787: Out-of-bounds Write

CAPEC

References (1)

URL	Tag	Source
https://us-cert.cisa.gov/ics/advisories/icsa-20-352-02	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Ge Search vendor "Ge"		Industrial Gateway Server Search vendor "Ge" for product "Industrial Gateway Server"				7.66 Search vendor "Ge" for product "Industrial Gateway Server" and version "7.66"		-		Affected
Ge Search vendor "Ge"		Industrial Gateway Server Search vendor "Ge" for product "Industrial Gateway Server"				7.68.804 Search vendor "Ge" for product "Industrial Gateway Server" and version "7.68.804"		-		Affected
Ptc Search vendor "Ptc"		Kepware Kepserverex Search vendor "Ptc" for product "Kepware Kepserverex"				6.0 Search vendor "Ptc" for product "Kepware Kepserverex" and version "6.0"		-		Affected
Ptc Search vendor "Ptc"		Kepware Kepserverex Search vendor "Ptc" for product "Kepware Kepserverex"				6.9 Search vendor "Ptc" for product "Kepware Kepserverex" and version "6.9"		-		Affected
Ptc Search vendor "Ptc"		Opc-aggregator Search vendor "Ptc" for product "Opc-aggregator"				-		-		Affected
Ptc Search vendor "Ptc"		Thingworx Industrial Connectivity Search vendor "Ptc" for product "Thingworx Industrial Connectivity"				-		-		Affected
Ptc Search vendor "Ptc"		Thingworx Kepware Server Search vendor "Ptc" for product "Thingworx Kepware Server"				6.8 Search vendor "Ptc" for product "Thingworx Kepware Server" and version "6.8"		-		Affected
Ptc Search vendor "Ptc"		Thingworx Kepware Server Search vendor "Ptc" for product "Thingworx Kepware Server"				6.9 Search vendor "Ptc" for product "Thingworx Kepware Server" and version "6.9"		-		Affected
Rockwellautomation Search vendor "Rockwellautomation"		Kepserver Enterprise Search vendor "Rockwellautomation" for product "Kepserver Enterprise"				6.6.504.0 Search vendor "Rockwellautomation" for product "Kepserver Enterprise" and version "6.6.504.0"		-		Affected
Rockwellautomation Search vendor "Rockwellautomation"		Kepserver Enterprise Search vendor "Rockwellautomation" for product "Kepserver Enterprise"				6.9.572.0 Search vendor "Rockwellautomation" for product "Kepserver Enterprise" and version "6.9.572.0"		-		Affected
Softwaretoolbox Search vendor "Softwaretoolbox"		Top Server Search vendor "Softwaretoolbox" for product "Top Server"				>= 6.0 <= 6.9 Search vendor "Softwaretoolbox" for product "Top Server" and version " >= 6.0 <= 6.9"		-		Affected