Wiser Smart: Improper Authentication
CVE-2022-30238 is a high-severity improper authentication vulnerability in Wiser Smart from Schneider Electric, with a CVSS 3.1 base score of 8.8 out of 10. It can be exploited remotely over the network by an attacker with a low-privileged account, without any action from a user. The record lists version 4.5 as the first without the flaw, so updating Wiser Smart to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 1% chance of exploitation within 30 days, higher than 63% of scored CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update Wiser Smart to 4.5 or a later version.
- Read the advisory on se.com for workarounds and exact fixed builds.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Schneider Electric | Wiser Smart | EER21000 up to, but not including, 4.5; EER21001 up to, but not including, 4.5 | 4.5 |
| Schneider Electric | Wiser Smart Eer21000 Firmware | 4.5 and earlier | Not stated |
| Schneider Electric | Wiser Smart Eer21001 Firmware | 4.5 and earlier | Not stated |
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
- LowA basic user account is enough.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 8.3 | High | CNA (se.com) |
| CVSS 3.1 | 8.8 | High | NVD |
| CVSS 2.0 | 7.5 | High | NVD |
Official description
A CWE-287: Improper Authentication vulnerability exists that could allow an attacker to take over the admin account when an attacker hijacks a session. Affected Products: Wiser Smart, EER21000 & EER21001 (V4.5 and prior)
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Authentication
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
How developers prevent this class of flaw
- Use an authentication framework or library such as the OWASP ESAPI Authentication feature.
Timeline
- CVE record published.
- Record last changed materially (score, affected products, status or references).
References
Advisories
Other vulnerabilities in Wiser Smart
- 7.5 High severity
- 8.2 High severity
- 9.8 Critical severity
- 9.8 Critical severity
Recent Improper Authentication vulnerabilities
- 8.6 High severity
- 7.8 High severity
- 9.8 Critical severity
- 9.8 Critical severity
- 8.8 High severity
- 7.7 High severity
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