CVE-2019-12567 : Vulnerability Insights and Analysis

Open TFTP Server MT 1.65 and earlier is affected by a stack-based overflow vulnerability that allows remote attackers to trigger a denial of service attack or execute arbitrary code by sending a lengthy TFTP error packet. This CVE is distinct from CVE-2018-10387 and CVE-2019-12568.

Understanding CVE-2019-12567

The logMess function in Open TFTP Server MT 1.65 and earlier is vulnerable to a stack-based overflow.

What is CVE-2019-12567?

The vulnerability in Open TFTP Server MT 1.65 and earlier allows attackers to remotely trigger a denial of service attack or execute arbitrary code through a long TFTP error packet.

The Impact of CVE-2019-12567

Attackers can exploit this vulnerability to remotely initiate a denial of service attack or execute arbitrary code.

Technical Details of CVE-2019-12567

Open TFTP Server MT 1.65 and earlier is susceptible to a stack-based overflow vulnerability.

Vulnerability Description

The logMess function in Open TFTP Server MT 1.65 and earlier is the source of the stack-based overflow vulnerability.

Affected Systems and Versions

Product: Open TFTP Server MT 1.65 and earlier
Vendor: N/A
Version: N/A

Exploitation Mechanism

Attackers can exploit this vulnerability by sending a lengthy TFTP error packet.

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent exploitation of CVE-2019-12567.

Immediate Steps to Take

Update Open TFTP Server to the latest version.
Implement network segmentation to limit exposure.
Monitor network traffic for any suspicious activity.

Long-Term Security Practices

Regularly update and patch software to mitigate vulnerabilities.
Conduct security assessments and penetration testing to identify weaknesses.

Patching and Updates

Apply patches and updates provided by the software vendor to fix the vulnerability.