Siemens SIMATIC eaSie Core Package up to 21.x MQTT Service missing authentication

CVSS Meta Temp Score
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CTI Interest Score
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8.0$0-$5k0.00

A vulnerability has been found in Siemens SIMATIC eaSie Core Package up to 21.x (SCADA Software) and classified as critical. Affected by this vulnerability is an unknown functionality of the component MQTT Service. The manipulation with an unknown input leads to a missing authentication vulnerability. The CWE definition for the vulnerability is CWE-306. The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

A vulnerability has been identified in SIMATIC eaSie Core Package (All versions < V22.00). The underlying MQTT service of affected systems does not perform authentication in the default configuration. This could allow an unauthenticated remote attacker to send arbitrary messages to the service and thereby issue arbitrary requests in the affected system.

The weakness was published 07/12/2022 as ssa-580125. It is possible to read the advisory at cert-portal.siemens.com. This vulnerability is known as CVE-2021-44222 since 11/25/2021. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 22.00 eliminates this vulnerability.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.2
VulDB Meta Temp Score: 8.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.1
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Missing authentication
CWE: CWE-306 / CWE-287
ATT&CK: Unknown

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: 🔍

Upgrade: SIMATIC eaSie Core Package 22.00

Timelineinfo

11/25/2021 🔍
07/12/2022 +228 days 🔍
07/12/2022 +0 days 🔍
07/21/2022 +9 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-580125
Status: Confirmed

CVE: CVE-2021-44222 (🔍)

Entryinfo

Created: 07/12/2022 15:39
Updated: 07/21/2022 14:31
Changes: 07/12/2022 15:39 (42), 07/21/2022 14:31 (18)
Complete: 🔍

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