Medium severity · published May 10, 2023
CVE-2023-23901
Improper following of a certificate's chain of trust exists in SkyBridge MB-A200 firmware Ver
6.5
CVSS
0.5%
EPSS
No
On KEV
Description
Improper following of a certificate's chain of trust exists in SkyBridge MB-A200 firmware Ver. 01.00.05 and earlier, and SkyBridge BASIC MB-A130 firmware Ver. 1.4.1 and earlier, which may allow a remote unauthenticated attacker to eavesdrop on or alter the communication sent to the WebUI of the product.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 39% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SB
Skybridge Basic Mb-a130 Firmware · Seiko-sol
through 1.4.1 · source: NVD
SM
Skybridge Mb-a200 Firmware · Seiko-sol
through 01.00.05 · source: NVD
Affected product
SB
Skybridge Basic Mb-a130 Firmware
Seiko-sol
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-23901
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-23901
Third Party Advisory
https://jvn.jp/en/jp/JVN40604023/
Vendor Advisory
https://www.seiko-sol.co.jp/archives/73969/
Product
https://www.seiko-sol.co.jp/products/skybridge/skybridge_download/mb-a100/
Product
https://www.seiko-sol.co.jp/products/skybridge/skybridge_download/mb-a130/
Product
https://www.seiko-sol.co.jp/products/skybridge/skybridge_download/mb-a200/
Product
https://www.seiko-sol.co.jp/products/skyspider/skyspider_download/mb-r210/
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