Vulnerability identifier: #VU60972

Vulnerability risk: Medium

CVSSv3.1: 5.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C]

CVE-ID: CVE-2022-23648

CWE-ID: CWE-264

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
containerd
Other software / Other software solutions

Vendor: containerd

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to an error when handling specially crafted image configuration in containerd where containers launched through containerd’s CRI implementation. A remote attacker can bypass any policy-based enforcement on container setup and access the read-only copies of arbitrary files and directories on the host.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

containerd: 1.0.0 - 1.0.3, 1.1.0 - 1.1.8, 1.2.0 - 1.2.14, 1.3.0 - 1.3.10, 1.4.0 - 1.4.12, 1.5.0 - 1.5.9, 1.6.0

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External links
http://github.com/containerd/containerd/releases/tag/v1.6.1
http://github.com/containerd/containerd/security/advisories/GHSA-crp2-qrr5-8pq7
http://github.com/containerd/containerd/releases/tag/v1.5.10
http://github.com/containerd/containerd/releases/tag/v1.4.13

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.