[Japanese]

JVNDB-2023-000125

Multiple vulnerabilities in BUFFALO VR-S1000

Overview

VR-S1000 provided by BUFFALO INC. contains multiple vulnerabilities listed below.
  • OS command injection (CWE-78) - CVE-2023-45741
  • Argument injection (CWE-88) - CVE-2023-46681
  • Use of hard-coded cryptographic key (CWE-321) - CVE-2023-46711
  • Information disclosure (CWE-200) - CVE-2023-51363

CVE-2023-45741, CVE-2023-46681, CVE-2023-46711
Thomas J. Knudsen and Samy Younsi of NeroTeam Security Labs reported these vulnerabilities to JPCERT/CC.
JPCERT/CC coordinated with the developer.

CVE-2023-51363
MASAHIRO IIDA of LAC Co., Ltd. reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
CVSS Severity (What is CVSS?)

CVSS V3 Severity:
Base Metrics 6.8 (Medium) [IPA Score]
  • Attack Vector: Adjacent Network
  • Attack Complexity: Low
  • Privileges Required: High
  • User Interaction: None
  • Scope: Unchanged
  • Confidentiality Impact: High
  • Integrity Impact: High
  • Availability Impact: High
CVSS V2 Severity:
Base Metrics 5.2 (Medium) [IPA Score]
  • Access Vector: Adjacent Network
  • Access Complexity: Low
  • Authentication: Single Instance
  • Confidentiality Impact: Partial
  • Integrity Impact: Partial
  • Availability Impact: Partial
The above CVSS base scores have been assigned for CVE-2023-45741

CVSS V3 Severity:
Base Metrics 7.8 (High) [IPA Score]
  • Attack Vector: Local
  • Attack Complexity: Low
  • Privileges Required: Low
  • User Interaction: None
  • Scope: Unchanged
  • Confidentiality Impact: High
  • Integrity Impact: High
  • Availability Impact: High
CVSS V2 Severity:
Base Metrics 4.3 (Medium) [IPA Score]
  • Access Vector: Local
  • Access Complexity: Low
  • Authentication: Single
  • Confidentiality Impact: Partial
  • Integrity Impact: Partial
  • Availability Impact: Partial
The above CVSS base scores have been assigned for CVE-2023-46681

CVSS V3 Severity:
Base Metrics 2.4 (Low) [IPA Score]
  • Attack Vector: Physical
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: None
  • Scope: Unchanged
  • Confidentiality Impact: Low
  • Integrity Impact: None
  • Availability Impact: None
CVSS V2 Severity:
Base Metrics 1.9 (Low) [IPA Score]
  • Access Vector: Local
  • Access Complexity: Medium
  • Authentication: None
  • Confidentiality Impact: Partial
  • Integrity Impact: None
  • Availability Impact: None
The above CVSS base scores have been assigned for CVE-2023-46711

CVSS V3 Severity:
Base Metrics 6.5 (Medium) [IPA Score]
  • Attack Vector: Adjacent Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: None
  • Scope: Unchanged
  • Confidentiality Impact: High
  • Integrity Impact: None
  • Availability Impact: None
CVSS V2 Severity:
Base Metrics 3.3 (Low) [IPA Score]
  • Access Vector: Adjacent Network
  • Access Complexity: Low
  • Authentication: None
  • Confidentiality Impact: Partial
  • Integrity Impact: None
  • Availability Impact: None
The above CVSS base scores have been assigned for CVE-2023-51363
Affected Products


BUFFALO INC.
  • VR-S1000 firmware Ver. 2.37 and earlier

Impact

  • A network-adjacent attacker with access to the product's web management page may execute an arbitrary OS command - CVE-2023-45741
  • A local attacker who can access to the product's command line interface may execute an arbitrary command - CVE-2023-46681
  • The password of a specific product user may be cracked - CVE-2023-46711
  • A network-adjacent attacker who can access the product's web management page may obtain sensitive information - CVE-2023-51363
Solution

[Update the firmware]
Update the firmware to the latest version according to the information provided by the developer.
Vendor Information

BUFFALO INC.
CWE (What is CWE?)

  1. Information Exposure(CWE-200) [IPA Evaluation]
  2. OS Command Injection(CWE-78) [IPA Evaluation]
  3. No Mapping(CWE-Other) [IPA Evaluation]
CVE (What is CVE?)

  1. CVE-2023-45741
  2. CVE-2023-46681
  3. CVE-2023-46711
  4. CVE-2023-51363
References

  1. JVN : JVN#23771490
  2. National Vulnerability Database (NVD) : CVE-2023-45741
  3. National Vulnerability Database (NVD) : CVE-2023-46681
  4. National Vulnerability Database (NVD) : CVE-2023-46711
  5. National Vulnerability Database (NVD) : CVE-2023-51363
Revision History

  • [2023/12/26]
      Web page was published
  • [2024/03/19]
      References : Contents were added

Date Public2023/12/26
Date First Published2023/12/26
Date Last Updated2024/03/19