Description
Improper Authorization vulnerability in nerves-hub nerves_hub_web allows cross-organization device control via device bulk actions and device update API. Missing authorization checks in the device bulk actions and device update API endpoints allow authenticated users to target devices belonging to other organizations and perform actions outside of their privilege level. An attacker can select devices outside of their organization by manipulating device identifiers and perform management actions on them, such as moving them to products they control. This may allow attackers to interfere with firmware updates, access device functionality exposed by the platform, or disrupt device connectivity. In environments where additional features such as remote console access are enabled, this could lead to full compromise of affected devices. This issue affects nerves_hub_web: from 1.0.0 before 2.4.0.
EPSS Score:
0%
Comprehensive Technical Analysis of EUVD-2026-10904
1. Vulnerability Assessment and Severity Evaluation
The vulnerability described in EUVD-2026-10904 is an Improper Authorization issue in the nerves-hub nerves_hub_web component. This vulnerability allows authenticated users to perform actions on devices belonging to other organizations, effectively bypassing authorization checks. The severity of this vulnerability is rated with a Base Score of 9.4 according to CVSS 4.0, indicating a critical risk.
CVSS Vector Breakdown:
- AV:N (Network Vector): The vulnerability is exploitable over the network.
- AC:L (Low Complexity): The attack requires low skill or resources.
- AT:N (None): No special conditions are required for the attack.
- PR:L (Low Privileges): The attacker needs low-level privileges (authenticated user).
- UI:N (None): No user interaction is required.
- VC:H (High Confidentiality Impact): The vulnerability can lead to significant confidentiality breaches.
- VI:H (High Integrity Impact): The vulnerability can lead to significant integrity breaches.
- VA:H (High Availability Impact): The vulnerability can lead to significant availability breaches.
- SC:H (High Scope Change): The vulnerability affects components beyond the initial scope.
- SI:H (High Scope Integrity): The vulnerability affects the integrity of components beyond the initial scope.
- SA:H (High Scope Availability): The vulnerability affects the availability of components beyond the initial scope.
2. Potential Attack Vectors and Exploitation Methods
Attack Vectors:
- Cross-Organization Device Control: An authenticated user can manipulate device identifiers to target devices outside their organization.
- Device Bulk Actions: The attacker can perform bulk actions on devices they do not own, such as moving them to different products.
- Device Update API: The attacker can interfere with firmware updates or disrupt device connectivity.
Exploitation Methods:
- Manipulating Device Identifiers: By altering device identifiers, an attacker can select devices from other organizations.
- Performing Unauthorized Actions: The attacker can perform management actions on devices they do not own, such as moving them to products they control.
- Remote Console Access: In environments where remote console access is enabled, the attacker could gain full control over affected devices.
3. Affected Systems and Software Versions
The vulnerability affects the following versions of nerves_hub_web:
- From version 1.0.0 to before version 2.4.0.
- Specific GitHub commit ranges:
adaeefdb7a835525482588f43332ef988cc448c7to1f69c9d595684a4650c3ac702f3dc7c5bcd7526c. - OTP package versions:
pkg:otp/nerves_hub@1.0.0topkg:otp/nerves_hub@2.4.0. - OCI image tags:
pkg:oci/nerves-hub?repository_url=ghcr.io/nerves-hub&tag=1.0.0topkg:oci/nerves-hub?repository_url=ghcr.io/nerves-hub&tag=2.4.0.
4. Recommended Mitigation Strategies
Immediate Actions:
- Update Software: Upgrade to
nerves_hub_webversion 2.4.0 or later. - Patch Management: Apply the security patch available in the GitHub commit
1f69c9d595684a4650c3ac702f3dc7c5bcd7526c.
Long-Term Strategies:
- Enhanced Authorization Checks: Implement robust authorization checks for all device management actions.
- Monitoring and Logging: Enable detailed logging and monitoring for device management actions to detect unauthorized activities.
- Access Controls: Review and tighten access controls to ensure that users have the minimum necessary privileges.
- Regular Audits: Conduct regular security audits to identify and mitigate similar vulnerabilities.
5. Impact on European Cybersecurity Landscape
This vulnerability poses a significant risk to organizations using nerves_hub_web for device management, particularly those in critical infrastructure sectors such as healthcare, energy, and transportation. The potential for cross-organization device control and full device compromise could lead to widespread disruptions and data breaches, impacting the overall cybersecurity posture of the European Union.
6. Technical Details for Security Professionals
Vulnerability Details:
- CVE ID: CVE-2026-28806
- Affected Component:
nerves_hub_web - Vulnerability Type: Improper Authorization
- Exploitability: Authenticated users can manipulate device identifiers to perform unauthorized actions on devices belonging to other organizations.
References:
- GitHub Advisory: GHSA-f8fr-mccc-xvcx
- GitHub Commit: 1f69c9d595684a4650c3ac702f3dc7c5bcd7526c
Mitigation Steps:
- Identify Affected Systems: Use vulnerability scanners to identify systems running vulnerable versions of
nerves_hub_web. - Apply Patches: Upgrade to the patched version or apply the security patch from the referenced GitHub commit.
- Implement Additional Controls: Enhance authorization checks and monitoring to prevent similar vulnerabilities in the future.
By addressing this vulnerability promptly and comprehensively, organizations can mitigate the risk of unauthorized device control and ensure the integrity and security of their device management systems.