EcoStruxure™ Cybersecurity Admin Expert (CAE): Improper Certificate Validation
CVE-2022-32748 is a high-severity improper certificate validation vulnerability in EcoStruxure™ Cybersecurity Admin Expert (CAE) from Schneider Electric, with a CVSS 3.1 base score of 8.3 out of 10. It can be exploited from the same local network by an unauthenticated attacker, without any action from a user. The record lists version 2.2 as the first without the flaw, so updating EcoStruxure™ Cybersecurity Admin Expert (CAE) to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.14% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update EcoStruxure™ Cybersecurity Admin Expert (CAE) to 2.2 or a later version.
- Update Ecostruxure Cybersecurity Admin Expert to 2.4 or a later version.
- Read the advisory on download.schneider-electric.com for workarounds and exact fixed builds.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Schneider Electric | EcoStruxure™ Cybersecurity Admin Expert (CAE) | All up to, but not including, 2.2 | 2.2 |
| Schneider Electric | Ecostruxure Cybersecurity Admin Expert | before 2.4 | 2.4 |
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
- AdjacentThe attacker must be on the same local network segment.
- Attack complexity
- HighSuccess depends on conditions outside the attacker's control.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Scope
- ChangedThe attack can reach beyond the vulnerable component into other systems.
- 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:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 7.9 | High | CNA (se.com) |
| CVSS 3.1 | 8.3 | High | NVD |
Official description
A CWE-295: Improper Certificate Validation vulnerability exists that could cause the CAE software to give wrong data to end users when using CAE to configure devices. Additionally, credentials could leak which would enable an attacker the ability to log into the configuration tool and compromise other devices in the network. Affected Products: EcoStruxure™ Cybersecurity Admin Expert (CAE) (Versions prior to 2.2)
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Certificate Validation
The product does not validate, or incorrectly validates, a certificate.
How developers prevent this class of flaw
- Certificates should be carefully managed and checked to assure that data are encrypted with the intended owner's public key.
- If certificate pinning is being used, ensure that all relevant properties of the certificate are fully validated before the certificate is pinned, including the hostname.
More Improper Certificate Validation vulnerabilities (CWE-295)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Other vulnerabilities in EcoStruxure™ Cybersecurity Admin Expert (CAE)
- 8.1 High severity
Recent Improper Certificate Validation vulnerabilities
- 7.0 High severity
- 8.8 High severity
- 8.1 High severity
- 9.1 Critical severity
- 7.5 High severity
- 7.5 High severity
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