[Japanese]

JVNDB-2024-000117

Stack-based buffer overflow vulnerability in multiple Ricoh laser printers and MFPs which implement Web Image Monitor

Overview

Web Image Monitor provided by Ricoh Company, Ltd. is an web server included and runs in Ricoh laser printers and MFPs (multifunction printers). Web Image Monitor contains a stack-based buffer overflow vulnerability (CWE-121) due to inappropriate parsing process of HTTP request.

Zhihong Tian, Hui Lu, Guocheng Wu, and Xingchi Chen of the Cyberspace Advanced Technology Institute of Guangzhou University reported this vulnerability to Ricoh Company, Ltd. directly and coordinated.
After the coordination, Ricoh Company, Ltd. reported this case to IPA under Information Security Early Warning Partnership, and JPCERT/CC coordinated with Ricoh Company, Ltd. for JVN publication.
CVSS Severity (What is CVSS?)

CVSS V3 Severity:
Base Metrics 7.7 (High) [IPA Score]
  • Attack Vector: Network
  • Attack Complexity: High
  • Privileges Required: None
  • User Interaction: None
  • Scope: Unchanged
  • Confidentiality Impact: High
  • Integrity Impact: High
  • Availability Impact: Low
Affected Products


Ricoh Co., Ltd
  • Web Image Monitor (Specific products and versions which implement Web Image Monitor)

As for the details of affected product names and versions, refer to the information provided by the developer.
Impact

Receiving a specially crafted request created and sent by an attacker may lead to arbitrary code execution and/or a denial-of-service (DoS) condition.
Solution

[Update Web Image Monitor]
Update Web Image Monitor to the latest version according to the information provided by the developer.
Vendor Information

Ricoh Co., Ltd
CWE (What is CWE?)

  1. Buffer Errors(CWE-119) [IPA Evaluation]
CVE (What is CVE?)

  1. CVE-2024-47939
References

  1. JVN : JVN#87770340
Revision History

  • [2024/10/31]
      Web page was published
  • [2025/03/25]
      CVSS Severity was modified

Date Public2024/10/31
Date First Published2024/10/31
Date Last Updated2025/03/25