CVE-2019-12568 : Security Advisory and Response

Open TFTP Server SP version 1.66 and earlier contain a stack-based overflow vulnerability that allows attackers to execute arbitrary code or cause a denial of service.

Understanding CVE-2019-12568

This CVE involves a vulnerability in the logMess function of Open TFTP Server SP version 1.66 and earlier.

What is CVE-2019-12568?

The vulnerability in the logMess function allows remote attackers to execute arbitrary code or perform a denial of service by sending a TFTP error packet with an excessively long length.

The Impact of CVE-2019-12568

Attackers can exploit this vulnerability to execute arbitrary code or cause a denial of service on affected systems.

Technical Details of CVE-2019-12568

This section provides more technical insights into the CVE.

Vulnerability Description

The stack-based overflow vulnerability in the logMess function of Open TFTP Server SP version 1.66 and earlier enables remote attackers to execute arbitrary code or trigger a denial of service.

Affected Systems and Versions

Product: Open TFTP Server SP
Vendor: N/A
Versions affected: 1.66 and earlier

Exploitation Mechanism

Attackers exploit this vulnerability by sending a TFTP error packet with an excessively long length, triggering the stack-based overflow.

Mitigation and Prevention

Protecting systems from CVE-2019-12568 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply security patches or updates provided by the software vendor.
Implement network segmentation to limit the impact of potential attacks.
Monitor network traffic for any suspicious TFTP error packets.

Long-Term Security Practices

Regularly update and patch software to address known vulnerabilities.
Conduct security assessments and penetration testing to identify and mitigate potential risks.

Patching and Updates

Stay informed about security advisories related to Open TFTP Server SP.
Apply patches promptly to mitigate the risk of exploitation.