Kata Containers is an open source project focusing on a standard implementation of lightweight Virtual Machines (VMs) that perform like containers. Prior to version 4.0.0, kata-runtime is vulnerable to host code execution via an unvalidated configuration path annotation. The runtime accepts an arbitrary io.katacontainers.config_path pod annotation and loads the referenced host TOML file without restriction.
As a result, a pod user who can place a file at a host-visible path can supply a configuration that selects an attacker-controlled hypervisor or virtio-fs daemon binary, executing code as root on the host. This issue is fixed in version 4.0.0.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
None
No disruption
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products
kata-containers:kata-containers
References 2
https://github.com/kata-containers/kata-containers/security/advisories/GHSA-mp2…
https://github.com/kata-containers/kata-containers/security/advisories/GHSA-mp2j-xm59-qfgw
https://github.com/kata-containers/kata-containers/commit/03cc670076099530f4e1e…
https://github.com/kata-containers/kata-containers/commit/03cc670076099530f4e1e9cb22849afdafb20f65