CVE-2023-1763 in IJ Network Tool
Summary
by MITRE • 05/17/2023
Canon IJ Network Tool/Ver.4.7.5 and earlier (supported OS: OS X 10.9.5-macOS 13),IJ Network Tool/Ver.4.7.3 and earlier (supported OS: OS X 10.7.5-OS X 10.8) allows an attacker to acquire sensitive information on the Wi-Fi connection setup of the printer from the software.
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Analysis
by VulDB Data Team • 08/12/2025
This vulnerability in Canon IJ Network Tool affects multiple versions across different macOS operating systems, creating a significant information disclosure risk. The flaw exists within the network configuration handling mechanisms of the printer utility software, specifically when processing Wi-Fi connection setup parameters. Attackers can exploit this weakness to extract sensitive network configuration data that should remain protected within the printer's secure communication channels.
The technical implementation of this vulnerability stems from inadequate input validation and improper handling of network parameter data within the Canon IJ Network Tool software. When the application processes Wi-Fi setup information, it fails to properly sanitize or restrict access to sensitive configuration details that are typically protected within the printer's secure communication protocols. This misconfiguration allows unauthorized data extraction through the application's network interface handling routines. The vulnerability manifests when the software attempts to establish or maintain Wi-Fi connections with printers, exposing internal network parameters that should remain confidential.
The operational impact of this vulnerability extends beyond simple information disclosure, creating potential pathways for further exploitation within network environments. An attacker who successfully exploits this vulnerability can obtain detailed information about the printer's wireless network configuration, including network SSIDs, security protocols, and potentially authentication credentials. This sensitive data can be leveraged to conduct more sophisticated attacks such as man-in-the-middle operations or targeted network reconnaissance against the affected printer and its connected network segments. The vulnerability affects both older macOS versions and newer releases, indicating a persistent flaw in the software's security architecture that spans multiple operating system generations.
Organizations utilizing Canon printers with affected software versions face increased risk of network infiltration and data compromise. The vulnerability aligns with CWE-200, which addresses information exposure, and represents a classic example of insufficient access control within network applications. Security practitioners should consider this vulnerability in relation to ATT&CK technique T1566, which covers credential access through network infrastructure reconnaissance. The exposure of Wi-Fi configuration data can enable attackers to bypass network security controls and potentially gain unauthorized access to printer management interfaces or connected network resources.
Mitigation strategies should include immediate software updates to the latest versions of Canon IJ Network Tool where the vulnerability has been addressed. Network administrators should implement additional monitoring of printer network communications to detect unusual access patterns or unauthorized configuration changes. The affected software versions should be removed from systems until proper security patches are applied, and organizations should conduct comprehensive network audits to identify all instances of the vulnerable software. Additionally, implementing network segmentation and access controls around printer management interfaces can help limit the potential impact of successful exploitation attempts.