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CVE-2020-2023 — Vulnerability in github.com/kata-containers/agent...

MEDIUM

Improper Privilege Management and Execution with Unnecessary Privileges in Kata Containers

Published February 15, 2022Updated November 8, 2023Source: osv

Summary

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.

Advisory Timeline

  • First published February 15, 2022 (1700 days ago).
  • Last revised November 8, 2023 — 631 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

Go
Update github.com/kata-containers/agent to 1.11.1 or later
go get github.com/kata-containers/agent@v1.11.1
Go
Update github.com/kata-containers/runtime to 1.10.5 or later
go get github.com/kata-containers/runtime@v1.10.5
Go
Update github.com/kata-containers/agent to 1.10.5 or later
go get github.com/kata-containers/agent@v1.10.5
Go
Update github.com/kata-containers/runtime to 1.11.1 or later
go get github.com/kata-containers/runtime@v1.11.1
Go
Update github.com/kata-containers/runtime to 1.9.1 or later
go get github.com/kata-containers/runtime@v1.9.1
Go
Update github.com/kata-containers/agent to 1.9.1 or later
go get github.com/kata-containers/agent@v1.9.1

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (6)

Affects 1 ecosystem: go (2).

PackageEcosystemAffectedFixed In
github.com/kata-containers/agent
go
All versions1.11.1
github.com/kata-containers/runtime
go
All versions1.10.5
github.com/kata-containers/agent
go
All versions1.10.5
github.com/kata-containers/runtime
go
All versions1.11.1
github.com/kata-containers/runtime
go
All versions1.9.1
github.com/kata-containers/agent
go
All versions1.9.1

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.8 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Frequently Asked Questions

What is CVE-2020-2023?
Improper Privilege Management and Execution with Unnecessary Privileges in Kata Containers This vulnerability has been assigned a severity rating of MEDIUM (CVSS score: 9.8/10).
How do I check if my project is affected by CVE-2020-2023?
CVE-2020-2023 affects github.com/kata-containers/agent and github.com/kata-containers/runtime. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2020-2023 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
9.8

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

GHSA-6978-vg2j-cc9q

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