[Japanese]

JVNDB-2023-000059

Multiple vulnerabilities in Inaba Denki Sangyo Wi-Fi AP UNIT

Overview

Wi-Fi AP UNIT provided by Inaba Denki Sangyo Co., Ltd. contains multiple vulnerabilities listed below.

  • Missing authentication for critical function (CWE-306) - CVE-2023-31196
  • OS command injection (CWE-78) - CVE-2023-31198
  • OS command injection (CWE-78) - CVE-2023-28392


MASAHIRO IIDA of LAC Co., Ltd. reported these vulnerabilities to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
CVSS Severity (What is CVSS?)

CVSS V3 Severity:
Base Metrics 7.2 (High) [IPA Score]
  • Attack Vector: 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 6.5 (Medium) [IPA Score]
  • Access Vector: 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-2023-31198

CVSS V3 Severity:
Base Metrics 7.5 (High) [IPA Score]
  • Attack Vector: 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 5.0 (Medium) [IPA Score]
  • Access Vector: 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-2023-31196

CVSS V3 Severity:
Base Metrics 7.2 (High) [IPA Score]
  • Attack Vector: 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 6.5 (Medium) [IPA Score]
  • Access Vector: Network
  • Access Complexity: Low
  • Authentication: Single
  • Confidentiality Impact: Partial
  • Integrity Impact: Partial
  • Availability Impact: Partial
The above CVSS base scores have been assigned for CVE-2023-28392
Affected Products


INABA DENKI SANGYO CO., LTD.
  • AC-PD-WAPU v1.05_B04 and earlier
  • AC-PD-WAPU-P v1.05_B04P and earlier
  • AC-PD-WAPUM v1.05_B04 and earlier
  • AC-PD-WAPUM-P v1.05_B04P and earlier
  • AC-WAPU-300 v1.00_B07 and earlier
  • AC-WAPU-300-P v1.00_B07 and earlier
  • AC-WAPUM-300 v1.00_B07 and earlier
  • AC-WAPUM-300-P v1.00_B07 and earlier

Impact


  • A remote attacker may obtain sensitive information of the affected products - CVE-2023-31196
  • An arbitrary OS command may be executed if a remote authenticated attacker with an administrative privilege sends a specially crafted request - CVE-2023-31198
  • An arbitrary OS command may be executed by an authenticated user with the administrative privilege - CVE-2023-28392

Solution

[Apply the workaround]
The developer states that these products are no longer supported, therefore recommends users to apply the following workarounds to mitigate the impacts of these vulnerabilities.

  • Change the initial configuration values
    • Change IP address

  • Change device operation settings
    • Prohibit access from WAN/Wireless interface (Only allow access through the front LAN port)

  • Change filtering configuration
    • Set the MAC address of the client to allow wireless connection
    • Configure VPN, IP filters, etc. to restrict connections from the client

  • Additional mitigation guidance/practices
    • Setup a firewall and run the product behind it
    • Do not access to other websites while logged into the setting page of the product
    • Close the web browser after finishing the operation in the setting page
    • Delete the password for the setting page saved in the web browser

Vendor Information

INABA DENKI SANGYO CO., LTD.
CWE (What is CWE?)

  1. Improper Authentication(CWE-287) [IPA Evaluation]
  2. OS Command Injection(CWE-78) [IPA Evaluation]
CVE (What is CVE?)

  1. CVE-2023-31196
  2. CVE-2023-31198
  3. CVE-2023-28392
References

  1. JVN : JVN#28412757
  2. JVN : JVNVU#98968780
  3. National Vulnerability Database (NVD) : CVE-2023-28392
  4. National Vulnerability Database (NVD) : CVE-2023-31196
  5. National Vulnerability Database (NVD) : CVE-2023-31198
Revision History

  • [2023/06/09]
      Web page was published
  • [2023/06/14]
      CVSS Severity was modified
  • [2024/05/27]
      References : Contents were added

Date Public2023/06/09
Date First Published2023/06/09
Date Last Updated2024/05/27