[Japanese]

JVNDB-2021-005998

Multiple vulnerabilities in QNAP VioStar NVR

Overview

VioStar series NVR provided by QNAP Systems contains multiple vulnerabilities listed below.

* Command injection (CWE-77) - CVE-2021-38685
* Improper authentication (CWE-287) - CVE-2021-38686

CVSS Severity (What is CVSS?)

CVSS V3 Severity:
Base Metrics 9.8 (Critical) [Other]
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: None
  • Scope: Unchanged
  • Confidentiality Impact: High
  • Integrity Impact: High
  • Availability Impact: High
The above CVSS base scores have been assigned for CVE-2021-38685


CVSS V3 Severity:
Base Metrics:9.8 (Critical) [Other]
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: None
  • Scope: Unchanged
  • Confidentiality Impact: High
  • Integrity Impact: High
  • Availability Impact: High
The above CVSS base scores have been assigned for CVE-2021-38686
Affected Products


QNAP Systems
  • VioStor NVR firmware

Impact

* An arbitrary command may be executed by a remote attacker. - CVE-2021-38685
* A remote attacker can login to the vulnerable system. - CVE-2021-38686

Solution

[Update the firmware]
Apply the appropriate firmware update according to the information provided by the developer.
The developer has released fixed version below.

* QVR 5.1.6 build 20211109
Vendor Information

QNAP Systems
CWE (What is CWE?)

  1. Improper Authentication(CWE-287) [Other]
  2. Command Injection(CWE-77) [Other]
CVE (What is CVE?)

  1. CVE-2021-38685
  2. CVE-2021-38686
References

  1. JVN : JVNVU#95429813
  2. National Vulnerability Database (NVD) : CVE-2021-38685
  3. National Vulnerability Database (NVD) : CVE-2021-38686
Revision History

  • [2013/12/24]
      Web page was published