Multiple Wireless M-Bus devices by Enbra use Hard-coded Credentials in Security mode 5 without an option to change the encryption key. An adversary can learn all information that is available in Enbra EWM.
CVSS 3.x
| Source | Score | Severity | Vector | Exploitability | Impact |
|---|---|---|---|---|---|
| nvd@nist.gov | 6.5 | MEDIUM | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N | 2.8 | 3.6 |
| info@cert.vde.com | 6.5 | MEDIUM | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N | 2.8 | 3.6 |
CVSS 2.0
Severity: LOW
Problem Type: CWE-798,
Products Affected
| Vendor | Product | Version |
|---|---|---|
| enbra | ewm | 1.7.29 |
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.
CVSS 3.x
| Source | Score | Severity | Vector | Exploitability | Impact |
|---|---|---|---|---|---|
| info@cert.vde.com | 6.5 | MEDIUM | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N | 2.8 | 3.6 |
| nvd@nist.gov | 6.5 | MEDIUM | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N | 2.8 | 3.6 |
CVSS 2.0
Severity: LOW
Problem Type: CWE-345,
Products Affected
| Vendor | Product | Version |
|---|---|---|
| enbra | ewm | 1.7.29 |
In Enbra EWM in Version 1.7.29 together with several tested wireless M-Bus Sensors the events backflow and "no flow" are not reconized or misinterpreted. This may lead to wrong values and missing events.
CVSS 3.x
| Source | Score | Severity | Vector | Exploitability | Impact |
|---|---|---|---|---|---|
| info@cert.vde.com | 6.2 | MEDIUM | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N | 2.5 | 3.6 |
| nvd@nist.gov | 5.5 | MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N | 1.8 | 3.6 |
CVSS 2.0
Severity: LOW
Problem Type: CWE-682,
Products Affected
| Vendor | Product | Version |
|---|---|---|
| enbra | ewm | 1.7.29 |