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SCA: security update for github.com/metal3-io/baremetal-operator (GHSA-pqfh-xh7w-7h3p)

medium Tenable Self-Hosted Container Security Plugin ID 417659

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - The Bare Metal Operator (BMO) implements a Kubernetes API for managing bare metal hosts in Metal3. The
 `BareMetalHost` (BMH) CRD allows the `userData`, `metaData`, and `networkData` for the provisioned host to
 be specified as links to Kubernetes Secrets. There are fields for both the `Name` and `Namespace` of the
 Secret, meaning that versions of the baremetal-operator prior to 0.8.0, 0.6.2, and 0.5.2 will read a
 `Secret` from any namespace. A user with access to create or edit a `BareMetalHost` can thus exfiltrate a
 `Secret` from another namespace by using it as e.g. the `userData` for provisioning some host (note that
 this need not be a real host, it could be a VM somewhere). BMO will only read a key with the name `value`
 (or `userData`, `metaData`, or `networkData`), so that limits the exposure somewhat. `value` is probably a
 pretty common key though. Secrets used by _other_ `BareMetalHost`s in different namespaces are always
 vulnerable. It is probably relatively unusual for anyone other than cluster administrators to have RBAC
 access to create/edit a `BareMetalHost`. This vulnerability is only meaningful, if the cluster has users
 other than administrators and users' privileges are limited to their respective namespaces. The patch
 prevents BMO from accepting links to Secrets from other namespaces as BMH input. Any BMH configuration is
 only read from the same namespace only. The problem is patched in BMO releases v0.7.0, v0.6.2 and v0.5.2
 and users should upgrade to those versions. Prior upgrading, duplicate the BMC Secrets to the namespace
 where the corresponding BMH is. After upgrade, remove the old Secrets. As a workaround, an operator can
 configure BMO RBAC to be namespace scoped for Secrets, instead of cluster scoped, to prevent BMO from
 accessing Secrets from other namespaces. (CVE-2024-43803)

See Also

https://github.com/advisories/GHSA-pqfh-xh7w-7h3p

Plugin Details

Severity: Medium

ID: 417659

Version: Revision 1.21

Type: Local

Family: SCA Checks

Published: 1/23/2025

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.92

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 4.5

Vector: CVSS2#AV:N/AC:L/Au:M/C:C/I:N/A:N

CVSS Score Source: CVE-2024-43803

CVSS v3

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 4.3

Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: Medium

Base Score: 6.9

Threat Score: 4.6

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 9/3/2024

Vulnerability Publication Date: 9/3/2024

Reference Information

CVE: CVE-2024-43803