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[Japanese]
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JVNDB-2023-002905
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Multiple vulnerabilities in CBC digital video recorders
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Digital video recorders provided by CBC Co.,Ltd. contain multiple vulnerabilities listed below.
* Improper authentication (CWE-287) - CVE-2023-38585
* OS command injection (CWE-78) - CVE-2023-40144
* Hidden functionality (CWE-912) - CVE-2023-40158
Yoshiki Mori, Ushimaru Hayato, Hiromu Kubiura and Masaki Kubo of National Institute of Information and Communications Technology Cybersecurity Research Institute reported these vulnerabilities to JPCERT/CC.
JPCERT/CC coordinated with the developer.
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CVSS V3 Severity:
Base Metrics 8.8 (High) [Other]
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: Low
- User Interaction: None
- Scope: Unchanged
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: High
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CBC AMERICA
- DR-16F series
- DR-16H series
- DR-16M series
- DR-4F series
- DR-4H series
- DR-4M41 series
- DR-4M51 series
- DR-8F series
- DR-8H series
- DR-8M series
- NR-16F series
- NR-16M series
- NR-4F series
- NR-4M series
- NR-8F series
- NR-8M series
- NR16H series
- NR4H series
- NR8H series
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An arbitrary OS command may be executed on the device or its settings may be altered by a remote attacker.
[Comment]
This analysis assumes a scenario that OS commands are executed on the device using the credentials obtained by exploiting CVE-2023-38585 vulnerability.
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[Update the firmware]
For the following devices, update the firmware to the latest version according to the information provided by the developer.
* NR-4M, NR-8M, NR-16M series
* NR-4F, NR-8F, NR-16F series
* DR-16M, DR-8M, DR-4M51 series
[Stop connecting to the internet]
Since the devices listed below are no longer supported, they do not meet current security requirements. Therefore, it is not suitable for connecting to internet.
* NR4H, NR8H, NR16H series
* DR-16F, DR-8F, DR-4F, DR-16H, DR-8H, DR-4H, DR-4M41 series
For more information, refer to the information provided by the developer.
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CBC AMERICA
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- Improper Authentication(CWE-287) [Other]
- OS Command Injection(CWE-78) [Other]
- Hidden Functionality(CWE-912) [Other]
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- CVE-2023-38585
- CVE-2023-40144
- CVE-2023-40158
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- JVN : JVNVU#92545432
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- [2023/08/22]
Web page was published
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