VDB-199730 · CVE-2021-27478 · icsa-21-105-02

EIPStackGroup OpENer EtherNet-IP Packet numeric conversion

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 was found in EIPStackGroup OpENer EtherNet-IP. It has been declared as problematic. This vulnerability affects unknown code of the component Packet Handler. Such manipulation leads to numeric conversion. This vulnerability is referenced as CVE-2021-27478. It is possible to launch the attack remotely. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in EIPStackGroup OpENer EtherNet-IP (version now known). Affected by this issue is some unknown processing of the component Packet Handler. The manipulation with an unknown input leads to a numeric conversion vulnerability. Using CWE to declare the problem leads to CWE-681. When converting from one data type to another, such as long to integer, data can be omitted or translated in a way that produces unexpected values. If the resulting values are used in a sensitive context, then dangerous behaviors may occur. Impacted is availability.

The weakness was published 05/13/2022 as icsa-21-105-02. The advisory is available at cisa.gov. This vulnerability is handled as CVE-2021-27478 since 02/19/2021. The technical details are unknown and an exploit is not available.

Upgrading eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

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

Productinfo

Vendor

EIPStackGroup

Name

OpENer EtherNet-IP

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.7

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 8.2
CNA Vector (ICS-CERT): 🔍

CVSSv2info

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

Exploitinginfo

Class: Numeric conversion
CWE: CWE-681 / CWE-704
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: 🔍

Timelineinfo

02/10/2021 🔍
02/19/2021 +9 days 🔍
05/13/2022 +447 days 🔍
05/13/2022 +0 days 🔍
05/15/2022 +2 days 🔍

Sourcesinfo

Advisory: icsa-21-105-02
Status: Confirmed

CVE: CVE-2021-27478 (🔍)
GCVE (CVE): GCVE-0-2021-27478
GCVE (VulDB): GCVE-100-199730

Entryinfo

Created: 05/13/2022 07:44
Updated: 05/15/2022 11:39
Changes: 05/13/2022 07:44 (49), 05/15/2022 11:39 (1)
Complete: 🔍
Cache ID: 216::103