CVE-2021-34577 - Vulnerability Details - OpenCVE

Description

In the Kaden PICOFLUX AiR water meter an adversary can read the values through wireless M-Bus mode 5 with a hardcoded shared key while being adjacent to the device.

Published: 2022-11-09

Score: 6.5 Medium

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Kaden

PICOFLUX AiR

affected

Version	Status	Constraints
`all`	affected	—

Configuration 1 [-]

AND

cpe:2.3:o:kadenvodomery:picoflux_air_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:kadenvodomery:picoflux_air:-:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2021-21227	In the Kaden PICOFLUX AiR water meter an adversary can read the values through wireless M-Bus mode 5 with a hardcoded shared key while being adjacent to the device.

No CVSS v4.0

Attack Vector Adjacent Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00091.

Exploitation none

Automatable no

Technical Impact partial

References

Link	Providers
https://www.fit.vutbr.cz/~polcak/CVE-2021-34577

History

Thu, 01 May 2025 20:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Subscriptions

Kadenvodomery Picoflux Air Picoflux Air Firmware

MITRE

Status: PUBLISHED

Assigner: CERTVDE

Published: 2022-11-09T16:11:03.018Z

Updated: 2025-05-01T19:16:45.077Z

Reserved: 2021-06-10T19:19:08.025Z

Link: CVE-2021-34577

Vulnrichment

Updated: 2024-08-04T00:19:46.586Z

NVD

Status : Modified

Published: 2022-11-09T17:15:10.080

Modified: 2024-11-21T06:10:44.300

Link: CVE-2021-34577

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-798

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2021-34577", "assignerOrgId": "270ccfa6-a436-4e77-922e-914ec3a9685c", "state": "PUBLISHED", "assignerShortName": "CERTVDE", "requesterUserId": "520cc88b-a1c8-44f6-9154-21a4d74c769f", "dateReserved": "2021-06-10T19:19:08.025Z", "datePublished": "2022-11-09T16:11:03.018Z", "dateUpdated": "2025-05-01T19:16:45.077Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "affected", "product": "PICOFLUX AiR", "vendor": "Kaden", "versions": [{"status": "affected", "version": "all"}]}], "credits": [{"lang": "en", "type": "finder", "user": "00000000-0000-4000-9000-000000000000", "value": "Libor POL\u010c\u00c1K reported to CERT@VDE"}], "datePublic": "2021-09-16T10:00:00.000Z", "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "In the Kaden PICOFLUX AiR water meter an adversary can read the values through wireless M-Bus mode 5 with a hardcoded shared key while being adjacent to the device."}], "value": "In the Kaden PICOFLUX AiR water meter an adversary can read the values through wireless M-Bus mode 5 with a hardcoded shared key while being adjacent to the device."}], "impacts": [{"capecId": "CAPEC-21", "descriptions": [{"lang": "en", "value": "CAPEC-21 Exploitation of Trusted Credentials"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-798", "description": "CWE-798 Use of Hard-coded Credentials", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "270ccfa6-a436-4e77-922e-914ec3a9685c", "shortName": "CERTVDE", "dateUpdated": "2022-11-09T16:11:03.018Z"}, "references": [{"url": "https://www.fit.vutbr.cz/~polcak/CVE-2021-34577"}], "source": {"discovery": "EXTERNAL"}, "title": "Hardcoded credentials in Kaden PICOFLUX AiR", "x_generator": {"engine": "Vulnogram 0.1.0-dev"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T00:19:46.586Z"}, "title": "CVE Program Container", "references": [{"url": "https://www.fit.vutbr.cz/~polcak/CVE-2021-34577", "tags": ["x_transferred"]}]}, {"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2025-05-01T19:16:21.657086Z", "id": "CVE-2021-34577", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-05-01T19:16:45.077Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://www.fit.vutbr.cz/~polcak/CVE-2021-34577", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T00:19:46.586Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2021-34577", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2025-05-01T19:16:21.657086Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-05-01T19:16:40.357Z"}}], "cna": {"title": "Hardcoded credentials in Kaden PICOFLUX AiR", "source": {"discovery": "EXTERNAL"}, "credits": [{"lang": "en", "type": "finder", "user": "00000000-0000-4000-9000-000000000000", "value": "Libor POL\u010c\u00c1K reported to CERT@VDE"}], "impacts": [{"capecId": "CAPEC-21", "descriptions": [{"lang": "en", "value": "CAPEC-21 Exploitation of Trusted Credentials"}]}], "metrics": [{"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "Kaden", "product": "PICOFLUX AiR", "versions": [{"status": "affected", "version": "all"}], "defaultStatus": "affected"}], "datePublic": "2021-09-16T10:00:00.000Z", "references": [{"url": "https://www.fit.vutbr.cz/~polcak/CVE-2021-34577"}], "x_generator": {"engine": "Vulnogram 0.1.0-dev"}, "descriptions": [{"lang": "en", "value": "In the Kaden PICOFLUX AiR water meter an adversary can read the values through wireless M-Bus mode 5 with a hardcoded shared key while being adjacent to the device.", "supportingMedia": [{"type": "text/html", "value": "In the Kaden PICOFLUX AiR water meter an adversary can read the values through wireless M-Bus mode 5 with a hardcoded shared key while being adjacent to the device.", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-798", "description": "CWE-798 Use of Hard-coded Credentials"}]}], "providerMetadata": {"orgId": "270ccfa6-a436-4e77-922e-914ec3a9685c", "shortName": "CERTVDE", "dateUpdated": "2022-11-09T16:11:03.018Z"}}}, "cveMetadata": {"cveId": "CVE-2021-34577", "state": "PUBLISHED", "dateUpdated": "2025-05-01T19:16:45.077Z", "dateReserved": "2021-06-10T19:19:08.025Z", "assignerOrgId": "270ccfa6-a436-4e77-922e-914ec3a9685c", "datePublished": "2022-11-09T16:11:03.018Z", "requesterUserId": "520cc88b-a1c8-44f6-9154-21a4d74c769f", "assignerShortName": "CERTVDE"}, "dataVersion": "5.1"}