CVE-2017-12638 : Security Advisory and Response

Ipswitch IMail server versions up to and including 12.5.5 are affected by a buffer overflow vulnerability, known as CVE-2017-12638 or ETCETERABLUE.

Understanding CVE-2017-12638

What is CVE-2017-12638?

A buffer overflow vulnerability in Ipswitch IMail server versions up to 12.5.5 allows remote attackers to execute arbitrary code through unspecified vectors in IMmailSrv.

The Impact of CVE-2017-12638

This vulnerability can be exploited by attackers to remotely execute arbitrary code on affected systems.

Technical Details of CVE-2017-12638

Vulnerability Description

The vulnerability is a stack-based buffer overflow in Ipswitch IMail server versions up to 12.5.5, enabling the execution of arbitrary code.

Affected Systems and Versions

Product: Ipswitch IMail server
Vendor: Ipswitch
Versions affected: Up to and including 12.5.5

Exploitation Mechanism

Attackers can exploit unspecified vectors in IMmailSrv to trigger the buffer overflow and execute malicious code.

Mitigation and Prevention

Immediate Steps to Take

Update Ipswitch IMail server to version 12.5.6 or later.
Implement network segmentation to limit the impact of potential attacks.

Long-Term Security Practices

Regularly monitor and patch software vulnerabilities.
Conduct security assessments and penetration testing to identify and address weaknesses.

Patching and Updates

Ensure timely installation of security patches and updates to mitigate the risk of exploitation.