CVE-2020-12732 in WiFi Digital Microscope
Summary
by MITRE • 07/15/2021
DEPSTECH WiFi Digital Microscope 3 has a default SSID of Jetion_xxxxxxxx with a password of 12345678.
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Analysis
by VulDB Data Team • 07/19/2021
The CVE-2020-12732 vulnerability affects the DEPSTECH WiFi Digital Microscope 3 device which presents a critical default credential security flaw. This device ships with a hardcoded Service Set Identifier that follows the pattern Jetion_xxXXXXXX where XXXXXX represents random hexadecimal characters, paired with a default password of 12345678. This configuration creates a significant security risk as the device becomes immediately accessible to anyone who knows the default network credentials without requiring any authentication or authorization. The vulnerability stems from the device manufacturer's failure to implement proper credential management during the device provisioning process, leaving the device in a highly insecure state upon initial deployment.
From a technical perspective, this vulnerability represents a classic case of weak default credentials that violates fundamental security principles outlined in the OWASP Top Ten and NIST cybersecurity guidelines. The default password of 12345678 is extremely weak and easily guessable, while the predictable SSID structure allows attackers to systematically identify vulnerable devices within network ranges. This vulnerability can be categorized under CWE-798 as the use of hard-coded credentials, and it directly enables unauthorized access to network resources. The device's network configuration does not enforce password complexity requirements or account lockout mechanisms, which are standard security controls recommended by the ISO 27001 and NIST SP 800-53 frameworks.
The operational impact of this vulnerability extends beyond simple unauthorized network access, as it creates a persistent threat vector that can be exploited by attackers at any time. Once an attacker gains access to the device through the default credentials, they can potentially intercept network traffic, modify device settings, or use the device as a foothold for further network penetration. This vulnerability aligns with the ATT&CK framework's initial access techniques, particularly T1110.001 for Brute Force and T1071.004 for Application Layer Protocol. The microscope device may also expose sensitive data through its network interface, particularly if it handles medical or scientific imagery that could be classified or proprietary in nature.
Mitigation strategies for this vulnerability must include immediate credential changes upon device deployment, as well as network segmentation to limit the device's access to critical systems. Organizations should implement mandatory credential change policies and establish procedures for verifying that default credentials have been properly updated. Network monitoring solutions should be deployed to detect unusual network activity from devices using default credentials, and regular vulnerability assessments should include checks for hardcoded credentials across all networked devices. The device manufacturer should be contacted to determine if firmware updates are available that address this issue, and in the absence of updates, the device should be isolated from critical network segments until proper security measures can be implemented. This vulnerability highlights the importance of following security best practices such as those outlined in the SANS Top 25 Software Errors and demonstrates the necessity of implementing robust device lifecycle management processes that include secure provisioning and ongoing security monitoring.