CyberRota Analysis
AI-GeneratedKata Containers versions prior to 3.31.0 are vulnerable due to a default configuration that permits pod creators to inject arbitrary command-line arguments into the virtiofsd process, potentially exposing the entire host root filesystem to a guest VM. This vulnerability allows attackers to access sensitive files, such as /etc/shadow, by leveraging the `kernel_params` annotation to enable the agent debug console. Organizations using affected versions should prioritize upgrading to 3.31.0 to mitigate the risk of unauthorized access to host resources.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
Note: these links are listed for security research and verification purposes only.
Original NVD Description
Kata Containers is an open source project focusing on a standard implementation of lightweight Virtual Machines (VMs) that perform like containers. Versions prior to 3.31.0 ship with a default configuration that allows pod creators to inject arbitrary command-line arguments into the virtiofsd process through the `io.katacontainers.config.hypervisor.virtio_fs_extra_args` pod annotation. By injecting `-o source=/` along with `--no-announce-submounts` and `--sandbox=none`, an attacker can override the virtiofsd shared directory to serve the entire host root filesystem into the guest VM. Combined with the `kernel_params` annotation (also enabled by default) to activate the agent debug console, the attacker can mount the host filesystem from inside the VM and read or write any file on the host, including /etc/shadow. Version 3.31.0 patches the issue.
Related CVEs
Other vulnerabilities affecting the same vendor(s)