Kata Containers - Containers have access to the guest root filesystem device
CVE-2020-2023

3.8LOW

Key Information:

Vendor

Kata Containers

Status
Kata Containers
Vendor
CVE Published:
10 June 2020

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2020-2023?

Kata Containers doesn't restrict containers from accessing the guest's root filesystem device. Malicious containers can exploit this to gain code execution on the guest and masquerade as the kata-agent. This issue affects Kata Containers 1.11 versions earlier than 1.11.1; Kata Containers 1.10 versions earlier than 1.10.5; and Kata Containers 1.9 and earlier versions.

Affected Version(s)

Kata Containers 1.11 < 1.11.1

Kata Containers 1.10 < 1.10.5

Kata Containers 1 <= 1.9

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

kata-cve-2020-2023-poc
Created by ssst0n3

References

https://github.com/kata-containers/runtime/pull/2487
x_refsource_MISC
https://github.com/kata-containers/runtime/pull/2477
x_refsource_MISC
https://github.com/kata-containers/runtime/issues/2488
x_refsource_MISC

CVSS V3.1

Score:
3.8
Severity:
LOW
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Yuval Avrahami, Palo Alto Networks
.