Multiple vulnerabilities in Runtime



| Updated: 2023-05-09
Risk Low
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2020-2023
CVE-2020-2026
CWE-ID CWE-269
CWE-59
Exploitation vector Local
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
 Runtime
Server applications / Virtualization software

Vendor Kata Containers

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Improper Privilege Management

EUVDB-ID: #VU34359

Risk: Low

CVSSv4.0: 1.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:P/U:Clear]

CVE-ID: CVE-2020-2023

CWE-ID: CWE-269 - Improper Privilege Management

Exploit availability: Yes

Description

The vulnerability allows a local authenticated user to read and manipulate data.

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.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Runtime: 1.11.0

CPE2.3 External links

https://github.com/kata-containers/agent/issues/791
https://github.com/kata-containers/agent/pull/792
https://github.com/kata-containers/runtime/issues/2488
https://github.com/kata-containers/runtime/pull/2477
https://github.com/kata-containers/runtime/pull/2487
https://github.com/kata-containers/runtime/releases/tag/1.10.5
https://github.com/kata-containers/runtime/releases/tag/1.11.1


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

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.

2) Link following

EUVDB-ID: #VU34360

Risk: Low

CVSSv4.0: 7.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:U/U:Clear]

CVE-ID: CVE-2020-2026

CWE-ID: CWE-59 - Improper Link Resolution Before File Access ('Link Following')

Exploit availability: No

Description

The vulnerability allows a local authenticated user to execute arbitrary code.

A malicious guest compromised before a container creation (e.g. a malicious guest image or a guest running multiple containers) can trick the kata runtime into mounting the untrusted container filesystem on any host path, potentially allowing for code execution on the host. This issue affects: Kata Containers 1.11 versions earlier than 1.11.1; Kata Containers 1.10 versions earlier than 1.10.5; Kata Containers 1.9 and earlier versions.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Runtime: 1.11.0

CPE2.3 External links

https://github.com/kata-containers/runtime/issues/2712
https://github.com/kata-containers/runtime/pull/2713
https://github.com/kata-containers/runtime/releases/tag/1.10.5
https://github.com/kata-containers/runtime/releases/tag/1.11.1


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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