A vulnerability has been found in GeoVision Door Access Control (unknown version) and classified as problematic. This vulnerability affects an unknown code block of the component SSH/HTTPS. The manipulation with an unknown input leads to a hard-coded credentials vulnerability. The CWE definition for the vulnerability is CWE-798. The product contains hard-coded credentials, such as a password or cryptographic key, which it uses for its own inbound authentication, outbound communication to external components, or encryption of internal data. As an impact it is known to affect confidentiality. CVE summarizes:

GeoVision Door Access Control device family employs shared cryptographic private keys for SSH and HTTPS. Attackers may conduct MITM attack with the derived keys and plaintext recover of encrypted messages.

The weakness was presented 06/12/2020 as confirmed advisory (CERT.org). The advisory is available at twcert.org.tw. This vulnerability was named CVE-2020-3929 since 12/20/2019. The exploitation appears to be difficult. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1110.001 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

See 156659 and 156657 for similar entries.

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• GeoVision

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• Door Access Control

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