CVE-2019-19142 : Vulnerability Insights and Analysis
Learn about CVE-2019-19142 affecting Intelbras WRN240 devices. Unauthorized firmware updates can occur via a POST request to the incoming/Firmware.cfg URI, posing security risks.
Intelbras WRN240 devices are vulnerable to an authentication bypass that allows unauthorized firmware updates through a POST request to the incoming/Firmware.cfg URI.
Understanding CVE-2019-19142
This CVE entry describes a security issue in Intelbras WRN240 devices that enables firmware updates without requiring authentication.
What is CVE-2019-19142?
The vulnerability in Intelbras WRN240 devices allows attackers to update the firmware without the need for authentication by sending a specific POST request to the incoming/Firmware.cfg URI.
The Impact of CVE-2019-19142
This vulnerability can be exploited by malicious actors to install unauthorized firmware on affected devices, potentially leading to further compromise or control of the device.
Technical Details of CVE-2019-19142
Intelbras WRN240 devices are affected by a critical security flaw that allows unauthorized firmware updates.
Vulnerability Description
The vulnerability in Intelbras WRN240 devices enables unauthorized parties to update the firmware without authentication by sending a POST request to the incoming/Firmware.cfg URI.
Affected Systems and Versions
- Product: Intelbras WRN240
- Vendor: Intelbras
- Versions: All versions are affected
Exploitation Mechanism
Attackers can exploit this vulnerability by sending a POST request to the incoming/Firmware.cfg URI without the need for authentication, allowing them to update the firmware.
Mitigation and Prevention
It is crucial to take immediate steps to secure affected Intelbras WRN240 devices and prevent unauthorized firmware updates.
Immediate Steps to Take
- Disable remote firmware update capabilities if not essential
- Implement network segmentation to restrict access to vulnerable devices
- Monitor network traffic for suspicious POST requests to the incoming/Firmware.cfg URI
Long-Term Security Practices
- Regularly update firmware to patch known vulnerabilities
- Conduct security assessments and penetration testing to identify and address potential weaknesses
Patching and Updates
- Apply firmware updates provided by Intelbras to address the authentication bypass vulnerability