Vulnerability in Puppet package - Remote Code Execution
Summary
DLA-1012-1: puppet - security update. Affects puppet versions < 2.7.23-1~deb7u4. Fixed in 2.7.23-1~deb7u4. How to fix ↓
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Background
Puppet is an open-source configuration management tool that allows system administrators to automate the provisioning, configuration, and management of multiple machines. It uses a client-server model, where the Puppet agent runs on the client machines and communicates with the Puppet server to retrieve configuration instructions. The Puppet package is vulnerable to a remote code execution vulnerability in versions prior to 4.10.1.
Vulnerability Detail
The vulnerability in Puppet arises from the deserialization of data sent from the Puppet agent to the server. An attacker can manipulate the data format to force YAML deserialization in an unsafe manner, potentially leading to remote code execution. This can allow an attacker to execute arbitrary code on the server, compromising the integrity and security of the system.
How To Fix
Minimum fixed version
2.7.23-1~deb7u4
This is the first release that contains the fix.
sudo apt-get install --only-upgrade puppetTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
There is no specific workaround mentioned for this vulnerability.
Conclusion
The Puppet package is vulnerable to a remote code execution vulnerability that can be exploited by manipulating the data format during deserialization. To mitigate this vulnerability, it is crucial to upgrade to Puppet version 4.10.1 or later. For further assistance and support on vulnerability remediation, please contact DevNack.com.
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FAQ
Puppet is an open-source configuration management tool used for automating the provisioning, configuration, and management of multiple machines.
The vulnerability allows an attacker to execute arbitrary code on the Puppet server, potentially compromising the system's security and integrity.
Versions of Puppet prior to 4.10.1 are affected by this vulnerability.
To fix this vulnerability, upgrade the Puppet package to version 4.10.1 or later, ensuring that all client machines are updated before the server.
No specific workaround has been mentioned for this vulnerability.
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