CVE-2024-0244 in Satera LBP670C
Summary
by MITRE • 02/06/2024
Buffer overflow in CPCA PCFAX number process of Office Multifunction Printers and Laser Printers(*) which may allow an attacker on the network segment to trigger the affected product being unresponsive or to execute arbitrary code.*:Satera MF750C Series firmware v03.07 and earlier sold in Japan. Color imageCLASS MF750C Series/Color imageCLASS X MF1333C firmware v03.07 and earlier sold in US. i-SENSYS MF754Cdw/C1333iF firmware v03.07 and earlier sold in Europe.
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Analysis
by VulDB Data Team • 02/29/2024
This vulnerability represents a critical buffer overflow condition within the CPCA PCFAX number processing component of several multifunction printer models including the Satera MF750C Series, Color imageCLASS MF750C Series, Color imageCLASS X MF1333C, and i-SENSYS MF754Cdw/C1333iF devices. The flaw exists specifically in firmware versions v03.07 and earlier across different regional markets, indicating a widespread issue affecting multiple product lines from the same manufacturer. The vulnerability occurs during the processing of fax numbers within the printer's communication protocols, creating a potential entry point for malicious actors within the local network segment.
The technical implementation of this buffer overflow stems from inadequate input validation within the fax number processing routine. When the printer receives a malformed or excessively long fax number string, the system fails to properly bounds-check the input data before storing it in a fixed-size buffer. This allows an attacker to overwrite adjacent memory locations, potentially corrupting critical program execution flow or injecting malicious code into the printer's memory space. The vulnerability is particularly concerning because it can be triggered remotely by network-based attackers who have access to the local network segment where the affected devices operate.
The operational impact of this vulnerability extends beyond simple denial of service conditions, as it provides potential for arbitrary code execution on the affected printer systems. An attacker who successfully exploits this buffer overflow could gain control over the printer's processing capabilities, potentially enabling them to execute malicious commands, access stored data, or use the compromised device as a pivot point for further attacks within the network. The printer's role as a network-accessible device makes it an attractive target for attackers seeking to establish persistent access or to use it as a stepping stone for attacking other networked systems. This vulnerability directly maps to CWE-121, which describes buffer overflow conditions in stack-based buffers, and aligns with ATT&CK technique T1059.007 for command and scripting interpreter execution.
The risk assessment for this vulnerability is elevated due to the widespread deployment of these printer models across different geographic regions and the relatively simple exploitation requirements. Network attackers with access to the same local network segment can leverage this vulnerability without requiring specialized equipment or extensive knowledge of the printer's internal architecture. The affected firmware versions suggest that this issue has been present for some time, indicating that many deployed systems remain vulnerable. Organizations should prioritize immediate firmware updates to address this vulnerability, as the risk of exploitation increases with the time between vulnerability disclosure and patch deployment. Additionally, network segmentation strategies and access controls should be implemented to limit network exposure of these devices, particularly in environments where they are not properly isolated from critical network segments.