Neutron Smart VMS: Authentication Bypass by Spoofing
CVE-2023-4178 is a critical-severity authentication bypass by spoofing vulnerability in Neutron Smart VMS from Neutron, with a CVSS 3.1 base score of 9.8 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. The record lists version b1130.1.0.1 as the first without the flaw, so updating Neutron Smart VMS to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.77% chance of exploitation within 30 days, higher than 56% of scored CVEs.
Critical severity: a successful attack would have severe impact.
What to do
- Update Neutron Smart VMS to b1130.1.0.1 or a later version.
- Update Smart Vms to b1130.1.0.1 or a later version.
- 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 |
|---|---|---|---|
| Neutron | Neutron Smart VMS | before b1130.1.0.1 | b1130.1.0.1 |
| Neutron | Smart Vms | before b1130.1.0.1 | b1130.1.0.1 |
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
- 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:N/UI:N/S:U/C:H/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 9.8 | Critical | CNA (usom.gov.tr) |
| CVSS 3.1 | 9.8 | Critical | NVD |
Official description
Authentication Bypass by Spoofing vulnerability in Neutron Neutron Smart VMS allows Authentication Bypass. This issue affects Neutron Smart VMS: before b1130.1.0.1.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Authentication Bypass by Spoofing
This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks.
More Authentication Bypass by Spoofing vulnerabilities (CWE-290)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: yes, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Third-party and government advisories
- usom.gov.tr/bildirim/tr-23-0496Third Party Advisory
Other references
Recent Authentication Bypass by Spoofing vulnerabilities
- 9.8 Critical severity
- 8.0 High severity
- 9.8 Critical severity
- 9.8 Critical severity
- 9.8 Critical severity
- 9.8 Critical severity
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