Insecure handling of image volumes in containerd CRI plugin
CVE-2022-23648

7.5HIGH

Key Information:

Vendor

Containerd

Status
Containerd
Vendor
CVE Published:
3 March 2022

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2022-23648?

containerd is a container runtime available as a daemon for Linux and Windows. A bug was found in containerd prior to versions 1.6.1, 1.5.10, and 1.14.12 where containers launched through containerd’s CRI implementation on Linux with a specially-crafted image configuration could gain access to read-only copies of arbitrary files and directories on the host. This may bypass any policy-based enforcement on container setup (including a Kubernetes Pod Security Policy) and expose potentially sensitive information. Kubernetes and crictl can both be configured to use containerd’s CRI implementation. This bug has been fixed in containerd 1.6.1, 1.5.10, and 1.4.12. Users should update to these versions to resolve the issue.

Affected Version(s)

containerd < 1.4.13 < 1.4.13

containerd >= 1.5.0, < 1.5.10 < 1.5.0, 1.5.10

containerd >= 1.6.0, < 1.6.1 < 1.6.0, 1.6.1

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.

CVE-2022-23648-POC
Created by raesene

References

https://github.com/containerd/containerd/security/advisor...
https://github.com/containerd/containerd/commit/10f428dac...
https://github.com/containerd/containerd/releases/tag/v1....

EPSS Score

6% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • đź‘ľ

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

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CVE-2022-23648 : Insecure handling of image volumes in containerd CRI plugin