EIPStackGroup OpENer EtherNet-IP Packet denial of service

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in EIPStackGroup OpENer EtherNet-IP. The affected element is an unknown function of the component Packet Handler. The manipulation leads to denial of service. This vulnerability is listed as CVE-2021-27500. The attack may be initiated remotely. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in EIPStackGroup OpENer EtherNet-IP (affected version not known) and classified as critical. This issue affects some unknown functionality of the component Packet Handler. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability.

The weakness was presented 05/13/2022 as icsa-21-105-02. The advisory is shared at cisa.gov. The identification of this vulnerability is CVE-2021-27500 since 02/19/2021. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

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

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Productinfo

Vendor

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.3

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

CNA Base Score: 7.5
CNA Vector (ICS-CERT): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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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-2021-27500 (🔍)
GCVE (CVE): GCVE-0-2021-27500
GCVE (VulDB): GCVE-100-199733

Entryinfo

Created: 05/13/2022 08:27
Updated: 05/15/2022 12:09
Changes: 05/13/2022 08:27 (39), 05/15/2022 12:01 (1), 05/15/2022 12:09 (11)
Complete: 🔍
Cache ID: 216::103

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