CVE-2017-2648 : Security Advisory and Response

A vulnerability in the jenkins-ssh-slaves-plugin prior to version 1.15 could allow for Man-in-the-Middle attacks.

Understanding CVE-2017-2648

This CVE involves a lack of host key verification in the jenkins-ssh-slaves-plugin, potentially exposing systems to security risks.

What is CVE-2017-2648?

The jenkins-ssh-slaves-plugin, versions before 1.15, lacked host key verification, making it susceptible to Man-in-the-Middle attacks.

The Impact of CVE-2017-2648

The vulnerability could lead to unauthorized access and interception of sensitive data due to inadequate host key verification.

Technical Details of CVE-2017-2648

The technical aspects of the vulnerability are as follows:

Vulnerability Description

The jenkins-ssh-slaves-plugin, versions prior to 1.15, did not perform host key verification, creating a security gap for potential Man-in-the-Middle attacks.

Affected Systems and Versions

Product: jenkins-ssh-slaves-plugin
Vendor: Jenkins
Vulnerable Version: 1.15

Exploitation Mechanism

Attack Complexity: High
Attack Vector: Network
Privileges Required: None
User Interaction: Required
Scope: Unchanged
Confidentiality Impact: High
Integrity Impact: High
Availability Impact: None

Mitigation and Prevention

Steps to address and prevent the CVE-2017-2648 vulnerability:

Immediate Steps to Take

Upgrade the jenkins-ssh-slaves-plugin to version 1.15 or later.
Implement host key verification mechanisms.
Monitor network traffic for any suspicious activities.

Long-Term Security Practices

Regularly update and patch software to address security vulnerabilities.
Conduct security audits and assessments to identify and mitigate risks.

Patching and Updates

Stay informed about security advisories from Jenkins.
Apply patches and updates promptly to secure systems against known vulnerabilities.