Relion670: Improper Validation of Specified Quantity in Input
CVE-2023-4518 is a high-severity improper validation of specified quantity in input vulnerability in Relion670 from Hitachi Energy, with a CVSS 3.1 base score of 7.5 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected Relion670 versions: Relion 670 series version 2.2.0 all revisions; Relion 670/650/SAM600-IO series version 2.2.1 all revisions; elion 670 series version 2.2.2 all revisions, and others listed below. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.7% chance of exploitation within 30 days, higher than 54% of scored CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update Relion 670 Firmware to 2.2.2.6 or 2.2.3.7 or 2.2.4.4 or 2.2.5.6, whichever matches your release line, or a later version.
- Update Relion 650 Firmware to 2.2.4.4 or 2.2.5.6, whichever matches your release line, or a later version.
- Update Relion Sam600-io Firmware to 2.2.5.6 or a later version.
- Read the advisory on publisher.hitachienergy.com for workarounds and exact fixed builds.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Hitachi Energy | Relion670 | Relion 670 series version 2.2.0 all revisions; Relion 670/650/SAM600-IO series version 2.2.1 all revisions; elion 670 series version 2.2.2 all revisions; Relion 670 series version 2.2.3 all revisions; Relion 670/650 series version 2.2.4 all revisions; Relion 670/650/SAM600-IO series version 2.2.5 all revisions | Not stated |
| Hitachienergy | Relion 670 Firmware | 2.2.0 up to, but not including, 2.2.2.6; 2.2.3 up to, but not including, 2.2.3.7; 2.2.4 up to, but not including, 2.2.4.4; 2.2.5 up to, but not including, 2.2.5.6 | 2.2.2.6, 2.2.3.7, 2.2.4.4, 2.2.5.6 |
| Hitachienergy | Relion 650 Firmware | 2.2.4 up to, but not including, 2.2.4.4; 2.2.5 up to, but not including, 2.2.5.6; 2.2.1; 2.2.1.6 | 2.2.4.4, 2.2.5.6 |
| Hitachienergy | Relion Sam600-io Firmware | 2.2.5 up to, but not including, 2.2.5.6; 2.2.1; 2.2.1.6 | 2.2.5.6 |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- NoneNo data is disclosed.
- Integrity
- NoneNothing can be modified.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 6.5 | Medium | CNA (hitachienergy.com) |
| CVSS 3.1 | 7.5 | High | NVD |
Official description
A vulnerability exists in the input validation of the GOOSE messages where out of range values received and processed by the IED caused a reboot of the device. In order for an attacker to exploit the vulnerability, goose receiving blocks need to be configured.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Validation of Specified Quantity in Input
The product receives input that is expected to specify a quantity (such as size or length), but it does not validate or incorrectly validates that the quantity has the required properties.
More Improper Validation of Specified Quantity in Input vulnerabilities (CWE-1284)
Timeline
- CVE record published.
- Record last changed materially (score, affected products, status or references).
References
Recent Improper Validation of Specified Quantity in Input vulnerabilities
- 7.5 High severity
- 7.5 High severity
- 8.1 High severity
- 7.5 High severity
- 7.5 High severity
- 7.5 High severity
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