Vulnerability · Published Sep 16, 2021 · Assigned by CERTVDE
CVE-2021-34572Insufficient Verification of Data Authenticity in Enbra EWM (replay attack)
Medium 6.5
In plain English
A medium-severity insufficient verification of data authenticity in EWM 1.7.29 from Enbra. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 13% of all known vulnerabilities).
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.2%top 86.5% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Enbra | EWM 1.7.29 | 03.11.2019 |
Weakness: CWE-345 · Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
References
- https://www.fit.vutbr.cz/~polcak/CVE-2021-34572.en x_refsource_CONFIRM