CVE-2023-33218 : Security Advisory and Response

A stack buffer overflow vulnerability has been identified in IDEMIA's products, potentially leading to remote code execution on the affected devices.

Understanding CVE-2023-33218

This CVE involves a vulnerability that allows malicious actors to exploit the Parameter Zone Read and Parameter Zone Write command handlers, resulting in a stack buffer overflow.

What is CVE-2023-33218?

The Parameter Zone Read and Parameter Zone Write command handlers allow performing a stack buffer overflow, which could ultimately lead to remote code execution on the targeted device.

The Impact of CVE-2023-33218

The impact of this vulnerability is classified as critical, with a CVSS base score of 9.1. It has a high impact on confidentiality and integrity, requiring no special privileges from the attacker.

Technical Details of CVE-2023-33218

This vulnerability is related to CAPEC-100 Overflow Buffers and is categorized under CWE-121 Stack-based Buffer Overflow.

Vulnerability Description

The Parameter Zone Read and Parameter Zone Write command handlers enable a stack buffer overflow, potentially allowing remote code execution on the affected device.

Affected Systems and Versions

The vulnerability affects the following IDEMIA products:

SIGMA Lite & Lite + versions less than 4.15.5
SIGMA Wide versions less than 4.15.5
SIGMA Extreme versions less than 4.15.5
MorphoWave Compact/XP versions less than 2.12.2
VisionPass versions less than 2.12.2
MorphoWave SP versions less than 1.2.7

Exploitation Mechanism

The exploitation of the Parameter Zone Read and Parameter Zone Write command handlers allows threat actors to execute remote code on the targeted device.

Mitigation and Prevention

To address CVE-2023-33218, immediate steps should be taken to mitigate the risk of exploitation and enhance overall security.

Immediate Steps to Take

Apply security patches provided by IDEMIA promptly.
Restrict network access to vulnerable devices.
Monitor for any suspicious activities on the network.

Long-Term Security Practices

Implement network segmentation to isolate critical devices.
Regularly update and patch systems to protect against known vulnerabilities.

Patching and Updates

Ensure that all affected IDEMIA products are updated to versions that are not vulnerable to the stack buffer overflow exploit.