SkyBridge MB-A200: Origin Validation Error
CVE-2023-23578 is a high-severity origin validation error vulnerability in SkyBridge MB-A200 from Seiko Solutions, 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 SkyBridge MB-A200 versions: firmware Ver. 01.00.05 and earlier. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 2.02% chance of exploitation within 30 days, higher than 81% of scored CVEs.
High severity with no evidence of exploitation so far.
What to do
- Check which version of SkyBridge MB-A200 you run against the affected versions below, and install the vendor's latest release.
- Read the advisory on seiko-sol.co.jp 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 |
|---|---|---|---|
| Seiko Solutions | SkyBridge MB-A200 | firmware Ver. 01.00.05 and earlier | Not stated |
| Seiko-sol | Skybridge Mb-a200 Firmware | 01.00.05 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
- 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
- NoneNothing can be modified.
- Availability
- NoneAvailability is not affected.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 7.5 | High | NVD |
| CVSS 3.1 | 7.5 | High | CISA (ADP) |
Official description
Improper access control vulnerability in SkyBridge MB-A200 firmware Ver. 01.00.05 and earlier allows a remote unauthenticated attacker to connect to the product's ADB port.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Origin Validation Error
The product does not properly verify that the source of data or communication is valid.
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: yes, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Advisories
Third-party and government advisories
- jvn.jp/en/jp/JVN40604023/Third Party Advisory
Other references
Recent Origin Validation Error vulnerabilities
- 8.6 High severity
- 10.0 Critical severity
- 9.3 Critical severity
- 9.6 Critical severity
- 8.1 High severity
- 9.6 Critical severity
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