VDB-168778 · CVE-2020-27297 · icsa-21-021-03

Matrikon OPC UA Tunneller prior 6.3.0.8233 heap-based overflow

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.7	$0-$5k	0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Matrikon OPC UA Tunneller. Impacted is an unknown function. Executing a manipulation can lead to heap-based overflow. This vulnerability appears as CVE-2020-27297. The attack may be performed from remote. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Matrikon OPC UA Tunneller. This vulnerability affects an unknown functionality. The manipulation with an unknown input leads to a heap-based overflow vulnerability. The CWE definition for the vulnerability is CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was presented 01/27/2021 as icsa-21-021-03. The advisory is available at us-cert.cisa.gov. This vulnerability was named CVE-2020-27297. The technical details are unknown and an exploit is not available.

Upgrading to version 6.3.0.8233 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

Matrikon

Name

OPC UA Tunneller

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 7.9

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: OPC UA Tunneller 6.3.0.8233

Timelineinfo

10/19/2020 🔍
01/27/2021 +100 days 🔍
01/27/2021 +0 days 🔍
02/20/2021 +24 days 🔍

Sourcesinfo

Advisory: icsa-21-021-03
Status: Confirmed

CVE: CVE-2020-27297 (🔍)
GCVE (CVE): GCVE-0-2020-27297
GCVE (VulDB): GCVE-100-168778

Entryinfo

Created: 01/27/2021 12:20
Updated: 02/20/2021 16:53
Changes: 01/27/2021 12:20 (37), 02/20/2021 16:47 (5), 02/20/2021 16:53 (18)
Complete: 🔍
Cache ID: 216::103