CVE-2021-34572

Insufficient Verification of Data Authenticity in Enbra EWM (replay attack)

State: Published
Severity: 6.5 Medium
Published: Sep 16, 2021
Updated: Sep 16, 2024
Reserved: Jun 10, 2021

Description

Enbra EWM 1.7.29 does not check for or detect replay attacks sent by wireless M-Bus Security mode 5 devices. Instead timestamps of the sensor are replaced by the time of the readout even if the data is a replay of earlier data.

Scores

CVSS	Score	Vector	Source
3.1	6.5 Medium	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N	CERTVDE

Weaknesses

CWE-345 Insufficient Verification of Data Authenticity

Affected Products

Product	Versions
EWM 1.7.29Enbra	03.11.2019Affected

References

https://www.fit.vutbr.cz/~polcak/CVE-2021-34572.en

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