VDB-169995 · CVE-2021-20986 · vde-2021-006

Hilscher PROFINET IO Device prior 3.14.0.7 stack-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.
4.4	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Hilscher PROFINET IO Device. It has been rated as critical. Affected by this issue is some unknown functionality. Performing a manipulation results in stack-based overflow. This vulnerability is known as CVE-2021-20986. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as critical, was found in Hilscher PROFINET IO Device. This affects an unknown function. The manipulation with an unknown input leads to a stack-based overflow vulnerability. CWE is classifying the issue as CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). This is going to have an impact on integrity, and availability.

The weakness was published 02/16/2021 as vde-2021-006. It is possible to read the advisory at cert.vde.com. This vulnerability is uniquely identified as CVE-2021-20986. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 3.14.0.7 eliminates this vulnerability. The upgrade is hosted for download at kb.hilscher.com.

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Productinfo

Vendor

Hilscher

Name

PROFINET IO Device

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.6
VulDB Meta Temp Score: 4.4

VulDB Base Score: 4.6
VulDB Temp Score: 4.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
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Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Stack-based overflow
CWE: CWE-121 / 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: PROFINET IO Device 3.14.0.7

Timelineinfo

12/17/2020 🔍
02/16/2021 +61 days 🔍
02/16/2021 +0 days 🔍
03/02/2021 +14 days 🔍

Sourcesinfo

Advisory: vde-2021-006
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-20986 (🔍)
GCVE (CVE): GCVE-0-2021-20986
GCVE (VulDB): GCVE-100-169995

Entryinfo

Created: 02/16/2021 22:16
Updated: 03/02/2021 07:45
Changes: 02/16/2021 22:16 (39), 03/02/2021 07:42 (5), 03/02/2021 07:45 (8)
Complete: 🔍
Cache ID: 216::103