Improper Preservation of Permissions in Kata Containers - CVE-2020-2025
Published: August 5, 2020
Vulnerability identifier: #VU33995
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:U/U:Amber
CVE-ID: CVE-2020-2025
CWE-ID:
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vendor: Kata Containers
Affected software:
Kata Containers
Kata Containers
Detailed vulnerability description
The vulnerability allows a remote attacker to take over all guest operating systems on the hypervisor.
Kata Containers before 1.11.0 on Cloud Hypervisor persists guest filesystem changes to the underlying image file on the host. A malicious guest can overwrite the image file to gain control of all subsequent guest VMs. Since Kata Containers uses the same VM image file with all VMMs, this issue may also affect QEMU and Firecracker based guests.
How to mitigate CVE-2020-2025
Install updates from vendor's website.