CVE-2017-2298 : Security Advisory and Response
Learn about CVE-2017-2298, a vulnerability in the mcollective-sshkey-security plugin by Puppet, allowing a compromised server to write files to client systems. Find mitigation steps and prevention measures here.
CVE-2017-2298 was published on June 30, 2017, and is related to a vulnerability in the mcollective-sshkey-security plugin by Puppet.
Understanding CVE-2017-2298
What is CVE-2017-2298?
The vulnerability in the mcollective-sshkey-security plugin, before version 0.5.1, allows a compromised server to write a file to any location on the client by manipulating the file path.
The Impact of CVE-2017-2298
This vulnerability can be exploited to write files to unintended locations on the client system, potentially leading to unauthorized access or data manipulation.
Technical Details of CVE-2017-2298
Vulnerability Description
The mcollective-sshkey-security plugin, prior to version 0.5.1, allows a compromised server to write files to arbitrary locations on the client by specifying identifiers in the file path.
Affected Systems and Versions
- Product: mcollective
- Vendor: Puppet
- Versions Affected: < 0.5.1
Exploitation Mechanism
The vulnerability arises from the lack of proper input sanitization, enabling a compromised server to manipulate file paths and write files to unintended locations on the client.
Mitigation and Prevention
Immediate Steps to Take
- Upgrade to version 0.5.1 or later of the mcollective-sshkey-security plugin.
- Implement network segmentation to limit the impact of a compromised server.
Long-Term Security Practices
- Regularly update and patch software to address known vulnerabilities.
- Conduct security audits and assessments to identify and mitigate potential risks.
Patching and Updates
Apply security patches and updates provided by Puppet to ensure the plugin is secure and protected against known vulnerabilities.