CVE-2021-34572

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

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.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.03%
Third-Party Advisory vutbr.cz
Affected: Enbra EWM 1.7.29
Published at:
Updated at:

References

Link Tags
https://www.fit.vutbr.cz/~polcak/CVE-2021-34572.en third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-34572?
CVE-2021-34572 has been scored as a medium severity vulnerability.
How to fix CVE-2021-34572?
To fix CVE-2021-34572, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-34572 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-34572 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-34572?
CVE-2021-34572 affects Enbra EWM 1.7.29.
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