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The Insights proxy Container is used by the Insights proxy product RPM
and serves as an intermediary between cystomer systems in disconnected networks,
air-gapped systems or systems with no outside connections and Insights.

The Insights proxy routes all Red Hat Insights traffic through itself, providing
a layer of privary and security for disconnected customer systems.

The Red Hat Security Advisory RHSA-2025:22868 covers vulnerabilities including CVE-2024-56433 in shadow-utils, which sets default subordinate user ID ranges in /etc/login.defs that may overlap with user IDs on local networks. This misconfiguration can lead to potential account takeover by exploiting newuidmap for access to NFS home directories or same-host resources during remote logins. The advisory also references multiple other CVEs affecting Red Hat Ceph Storage and the Insights proxy container image. Red Hat has not explicitly stated a patch availability in the advisory content provided. The CVSS score for CVE-2024-56433 is 3.6 (low) per Red Hat, but the overall severity is marked as high due to the combined impact of multiple vulnerabilities.

Detailed information about Red Hat Security Advisory: Insights proxy Container Image affecting Red Hat Product Security Red Hat. Get real-time updates, technica

Red Hat Security Advisory: Insights proxy Container Image - Live Threat Intelligence - Threat Radar | OffSeq.com

https://access.redhat.com/errata/RHSA-2025:22868

https://access.redhat.com/security/cve/CVE-2024-56433

https://access.redhat.com/security/cve/CVE-2025-4598

https://access.redhat.com/security/cve/CVE-2025-53905

https://access.redhat.com/security/cve/CVE-2025-53906

https://access.redhat.com/security/cve/CVE-2025-6965

https://access.redhat.com/security/cve/CVE-2025-9230

https://access.redhat.com/security/cve/CVE-2025-9714

https://access.redhat.com/security/updates/classification/

Canonical URL

https://access.redhat.com/errata/RHSA-2025:22548

https://access.redhat.com/security/cve/cve-2024-56433

https://access.redhat.com/security/cve/cve-2025-9230

https://access.redhat.com/security/cve/cve-2025-6965

https://access.redhat.com/security/cve/cve-2025-11561

https://access.redhat.com/security/cve/CVE-2025-11230

https://docs.redhat.com/en/documentation/red_hat_ceph_storage/

Red Hat Security Advisory: Insights proxy Container Image

shadow-utils

shadow-utils (aka shadow) 4.4 through 4.17.0 establishes a default /etc/subuid behavior (e.g., uid 100000 through 165535 for the first user account) that can realistically conflict with the uids of users defined on locally administered networks, potentially leading to account takeover, e.g., by leveraging newuidmap for access to an NFS home directory (or same-host resources in the case of remote logins by these local network users). NOTE: it may also be argued that system administrators should not have assigned uids, within local networks, that are within the range that can occur in /etc/subuid.

The vulnerability CVE-2024-56433 affects shadow-utils (shadow) versions 4.4 through 4.17.0, specifically involving the initialization of the /etc/subuid file with an insecure default UID range (commonly 100000 through 165535 for the first user account). This default range can overlap with user IDs assigned within locally administered networks, creating a conflict that attackers can exploit. The exploitation vector involves leveraging the newuidmap utility, which is used to map user IDs for user namespaces, to gain unauthorized access to resources such as NFS-mounted home directories or same-host resources accessed via remote logins. This can lead to account takeover scenarios where an attacker with low privileges on the system can escalate access by exploiting the UID range overlap. The root cause is the insecure default initialization of the subuid resource, categorized under CWE-1188. The vulnerability requires local access and has a high attack complexity, with no user interaction required. The CVSS 3.1 score is 3.6, indicating low severity, primarily due to the limited scope and complexity of exploitation. No public exploits or active exploitation in the wild have been reported. The issue highlights the importance of system administrators avoiding UID conflicts by customizing /etc/subuid ranges to ensure they do not overlap with locally assigned UIDs on networks. Proper UID management and network segmentation can mitigate the risk. This vulnerability is relevant to Linux environments using shadow-utils, particularly those employing user namespaces and networked home directories.

Detailed information about CVE-2024-56433: CWE-1188 Initialization of a Resource with an Insecure Default in shadow-maint shadow-utils affecting shadow-maint sh

CVE-2024-56433: CWE-1188 Initialization of a Resource with an Insecure Default in shadow-maint shadow-utils - Live Threat Intelligence - Threat Radar | OffSeq.com

CVE-2024-56433: CWE-1188 Initialization of a Resource with an Insecure Default in shadow-maint shadow-utils


Red Hat Security Advisory: Insights proxy Container ImageCVE-2024-56433 0 The Insights proxy Container is used by the Insights proxy product RPM and serves as an intermediary between cystomer systems in disconnected networks, air-gapped systems or systems with no outside connections and Insights. The Insights proxy routes all Red Hat Insights traffic through itself, providing a layer of privary and security for disconnected customer systems. HighVulnerability#gcve #csaf #cve-2024-56433 Join the discussion	GCVE Database	12/08/2025, 18:05:34 UTC Added: 05/28/2026, 22:15:03 UTC
CVE-2024-56433: CWE-1188 Initialization of a Resource with an Insecure Default in shadow-maint shadow-utilsCVE-2024-56433 0 shadow-utils (aka shadow) 4.4 through 4.17.0 establishes a default /etc/subuid behavior (e.g., uid 100000 through 165535 for the first user account) that can realistically conflict with the uids of users defined on locally administered networks, potentially leading to account takeover, e.g., by leveraging newuidmap for access to an NFS home directory (or same-host resources in the case of remote logins by these local network users). NOTE: it may also be argued that system administrators should not have assigned uids, within local networks, that are within the range that can occur in /etc/subuid. LowVulnerabilityUnited StatesGermanyJapan+7#cve #cve-2024-56433 #cwe-1188 Join the discussion	CVE Database V5	12/26/2024, 00:00:00 UTC Added: 02/25/2026, 21:38:28 UTC

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