Plattform
ruby
Komponente
puppet
Behoben in
2.7.21
CVE-2013-1655 is a remote code execution (RCE) vulnerability affecting Puppet versions 2.7.x prior to 2.7.21 and 3.1.x prior to 3.1.1. This vulnerability arises from insecure handling of serialized attributes when running Puppet with Ruby 1.9.3 or later, enabling attackers to potentially gain control of affected systems. A fix is available in Puppet 2.7.21 and later, and applying this update is crucial for maintaining system security.
The impact of CVE-2013-1655 is severe. A successful exploit allows an attacker to execute arbitrary code on a Puppet agent or master server. This could lead to complete system compromise, including data theft, modification, or destruction. Attackers could leverage this vulnerability to gain persistent access to the network, move laterally to other systems, and potentially disrupt critical infrastructure. The use of serialized attributes, while convenient for configuration management, introduces a significant security risk if not properly validated and sanitized. This vulnerability shares similarities with other deserialization vulnerabilities where untrusted data is processed without sufficient safeguards.
CVE-2013-1655 was publicly disclosed in 2017. While no active exploitation campaigns have been definitively linked to this specific CVE, the nature of RCE vulnerabilities makes them attractive targets for attackers. Public proof-of-concept exploits are available, increasing the risk of exploitation. It is not listed on the CISA KEV catalog at this time. The vulnerability's age and the availability of exploits warrant continued vigilance.
Organizations heavily reliant on Puppet for configuration management are particularly at risk. Environments with legacy Puppet deployments running older, unsupported versions are also vulnerable. Shared hosting environments where Puppet agents are managed centrally pose a significant risk, as a compromise of the Puppet master could affect multiple systems.
• ruby: Monitor Ruby processes running Puppet for unusual network connections or code execution patterns.
Get-Process | Where-Object {$_.ProcessName -like '*puppet*'} | Select-Object Name, Id, CPU, WorkingSet• linux: Examine Puppet agent and master logs (/var/log/puppet/puppet.log) for errors related to attribute serialization or unexpected code execution.
journalctl -u puppet -f | grep -i "error" -i "serialization"• generic web: Check Puppet agent configuration files for insecure attribute serialization practices. Review Puppet code for usage of serialized_attribute or similar constructs.
• windows: Use Autoruns to check for unusual startup entries related to Puppet or Ruby that could indicate malicious code execution.
discovery
disclosure
patch
Exploit-Status
EPSS
0.63% (70% Perzentil)
The primary mitigation for CVE-2013-1655 is to upgrade Puppet to version 2.7.21 or later. If upgrading is not immediately feasible, consider temporarily restricting access to Puppet agents and masters to trusted networks. While not a complete solution, implementing strict network segmentation can limit the potential blast radius of a successful exploit. Review Puppet configurations for any unusual or suspicious serialized attribute usage. After upgrading, verify the fix by attempting to trigger the serialization process with malicious input and confirming that it is properly handled without code execution.
Kein offizieller Patch verfügbar. Prüfe auf Workarounds oder überwache auf Updates.
Schwachstellenanalysen und kritische Warnungen direkt in deinen Posteingang.
CVE-2013-1655 is a remote code execution vulnerability affecting Puppet versions 2.7.x before 2.7.21 and 3.1.x before 3.1.1, allowing attackers to execute arbitrary code via insecure attribute serialization.
You are affected if you are running Puppet versions 2.7.x prior to 2.7.21 or 3.1.x prior to 3.1.1, especially when using Ruby 1.9.3 or later.
Upgrade Puppet to version 2.7.21 or later. As a temporary workaround, disable attribute serialization in your Puppet manifests.
While no widespread exploitation has been confirmed, the availability of public proof-of-concept exploits suggests a potential risk.
Refer to the Puppet security advisory for details: https://puppet.com/security/advisories/puppet-security-advisory-2013-0006
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