Vulnerabilities
Misconfiguration
Runtime Security
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CVE Vulnerabilities

CVE-2022-0532

Incorrect Permission Assignment for Critical Resource

Published: Feb 09, 2022 | Modified: Nov 21, 2024
CVSS 3.x
4.2
MEDIUM
Source:
NVD
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:L
CVSS 2.x
4.9 MEDIUM
AV:N/AC:M/Au:S/C:P/I:N/A:P
RedHat/V2
RedHat/V3
4.2 MODERATE
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:L
Ubuntu
MEDIUM
Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2022-0532
CWEhttps://cwe.mitre.org/data/definitions/732.html

An incorrect sysctls validation vulnerability was found in CRI-O 1.18 and earlier. The sysctls from the list of safe sysctls specified for the cluster will be applied to the host if an attacker is able to create a pod with a hostIPC and hostNetwork kernel namespace.

Weakness

The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.

Affected Software

Name Vendor Start Version End Version
Cri-o Kubernetes * 1.18 (including)
Red Hat OpenShift Container Platform 4.10 RedHat cri-o-0:1.23.1-9.rhaos4.10.gitbdffb9a.el8 *
Red Hat OpenShift Container Platform 4.6 RedHat cri-o-0:1.19.5-3.rhaos4.6.git91f8458.el8 *
Red Hat OpenShift Container Platform 4.7 RedHat cri-o-0:1.20.6-11.rhaos4.7.git76ea3d0.el8 *
Red Hat OpenShift Container Platform 4.8 RedHat cri-o-0:1.21.5-2.rhaos4.8.gitaf64931.el8 *
Red Hat OpenShift Container Platform 4.9 RedHat cri-o-0:1.22.2-2.rhaos4.9.gitb030be8.el8 *

Potential Mitigations

  • Run the code in a “jail” or similar sandbox environment that enforces strict boundaries between the process and the operating system. This may effectively restrict which files can be accessed in a particular directory or which commands can be executed by the software.
  • OS-level examples include the Unix chroot jail, AppArmor, and SELinux. In general, managed code may provide some protection. For example, java.io.FilePermission in the Java SecurityManager allows the software to specify restrictions on file operations.
  • This may not be a feasible solution, and it only limits the impact to the operating system; the rest of the application may still be subject to compromise.
  • Be careful to avoid CWE-243 and other weaknesses related to jails.

References

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