#VU50275 Origin validation error in Podman - CVE-2021-20199

Vulnerability identifier: #VU50275

Vulnerability risk: High

CVSSv4.0: 8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2021-20199

CWE-ID: CWE-346

Exploitation vector: Network

Exploit availability: No

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

Vendor: Container Projects

Description

The vulnerability allows a remote attacker to bypass security restrictions.

The vulnerability exists due to missing authentication when connecting from all sources. A remote attacker can send a specially crafted request and bypass access restrictions to containerized applications.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Podman: 1.8.0 rc1 - 2.2.1

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External links
https://bugzilla.redhat.com/show_bug.cgi?id=1919050
https://github.com/containers/podman/issues/5138
https://github.com/containers/podman/pull/9052
https://github.com/rootless-containers/rootlesskit/pull/206
https://github.com/containers/podman/releases/tag/v3.0.0

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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.