#VU62468 Security restrictions bypass in Podman - CVE-2022-1227

Vulnerability identifier: #VU62468

Vulnerability risk: Medium

CVSSv4.0: 7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Green]

CVE-ID: CVE-2022-1227

CWE-ID: CWE-264

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
Podman
Universal components / Libraries / Libraries used by multiple products

Vendor: Container Projects

Description

The vulnerability allows a remote attacker to escalate privileges on the system.

The vulnerability exists due to improper privilege management when running podman top on a container made from a maliciously-crafted image and using a user namespace. An attacker with full access to the container can execute arbitrary code  in the host context.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Podman: 3.2.0 - 3.4.6

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External links
https://github.com/containers/libpod/releases/tag/v3.4.7
https://github.com/containers/podman/issues/10941

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user 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.