CVE-2015-1130 is an authentication bypass vulnerability in Apple OS X. CISA added it to the Known Exploited Vulnerabilities catalogue on 10 February 2022, which means attackers have used it in real attacks. The XPC implementation in Admin Framework in Apple OS X before 10.10.3 allows local users to bypass authentication and obtain admin privileges.
What the vulnerability means in practice
CVE-2015-1130 is an NIST National Vulnerability Database record for an authentication bypass in Apple OS X, and the important security meaning is straightforward: a local attacker can cross an authentication boundary and reach admin-level actions they should not have.
That makes the issue more than a simple login defect. When a local bypass is present in an operating system privilege path, the attacker is no longer trying to guess credentials, they are trying to sidestep the control that decides who is trusted to act as an administrator.
Why this kind of authentication bypass is dangerous
An authentication bypass in a core OS component is dangerous because it can turn ordinary local access into privileged control. Once the boundary fails, the attacker may be able to change system settings, weaken security tools, install persistence, or access data and credentials that were meant to be protected by the admin model.
In practice, the main danger is privilege escalation, not just unauthorized login. The bypass can become a stepping stone to broader compromise if the system stores secrets, trusts local administrative changes, or uses the compromised host as a launch point for later activity.
How organisations should check exposure
Exposure review starts with asset inventory and version identification, because you cannot judge risk without knowing where Apple OS X systems are present and whether any are running affected releases. For vulnerability records, the authoritative sources are the CVE Program and the NVD entry for the record.
Organisations should also look for systems with local user access, shared administrator use, unmanaged endpoints, and any place where OS-level privilege is granted broadly. If the host is externally reachable through remote support, shared access workflows, or weak local controls, the practical exposure can be higher even though the exploit starts locally.
Remediation, detection, and post-patch review
Remediation is to move affected systems to the vendor-fixed release path and verify that the authentication bypass is closed. Where patching is delayed, reduce local attack opportunity by tightening administrative access, restricting interactive use, and isolating untrusted users or shared endpoints.
Detection should focus on signs that a normal local user may have gained administrative capability, such as unexpected privilege changes, suspicious account creation, security-setting tampering, and other post-exploitation activity. After patching, review the host for persistence, altered configuration, and evidence that administrative access was already abused before the fix was applied.
Because this is a privilege-escalation issue, any confirmed exploitation should also trigger a review of credentials, sessions, or accounts that may have been accessed from the compromised system.
Risk and Threat Considerations
An authentication bypass in an operating system privilege path is high-value to attackers because it can convert low-privilege local access into admin control without needing to break passwords. That makes it attractive for post-compromise escalation, malware installation, and defence evasion on the affected host.
Failure mechanism: The control that separates ordinary local use from administrative authority can be skipped, so the attacker inherits the trust normally reserved for an admin session.
Impact: The compromise can expand from one local account to full host control, which may expose local secrets, weaken system protections, and create a platform for persistence or lateral movement.
Standards & Framework Alignment
This section maps relevant standards and security frameworks to the operational risks and controls described in this guidance.
MITRE ATT&CK addresses the attack surface, NIST SP 800-53 Rev 5 and CIS Controls v8 set the technical controls, and ISO/IEC 27001:2022 defines the regulatory obligations.
| Framework | Control / Reference | Relevance |
|---|---|---|
| NIST SP 800-53 Rev 5 | IA-2 — Identification and Authentication (Organizational Users) | The issue is a failure of user authentication and privilege separation on a host. |
| IA-5 — Authenticator Management | Admin access depends on authenticators that must be protected, rotated, and reviewed after compromise. | |
| Recommendation — Enforce strong user authentication and privilege separation for administrative access. Manage and rotate authenticators tied to administrative access paths. | ||
| CIS Controls v8 | CIS-6 — Access Control Management | The vulnerability enables unauthorized privilege gain, which access-control management is meant to prevent. |
| Recommendation — Restrict administrative privileges and remove unnecessary local access. | ||
| MITRE ATT&CK | T1068 — Exploitation for Privilege Escalation | The vulnerability is an authentication bypass that can yield admin privileges through privilege escalation. |
| Recommendation — Map the bypass to privilege-escalation detection and hunt for post-exploitation activity. | ||
| ISO/IEC 27001:2022 | A.8.5 — Secure authentication | The term concerns an authentication failure in a technology control path. |
| Recommendation — Review authentication design and verify it blocks local privilege bypass. | ||
Practitioner Guidance
Why practitioners should care: Treat operating-system authentication bypasses as privilege-escalation issues, not just login defects. The practical question is whether a local user can cross into a trust level that changes what they can change, read, or persist on the host.
What to watch for: Pay special attention to systems where local access is broad, admin rights are shared, or endpoint hygiene is inconsistent, because those conditions make an authentication bypass easier to turn into real operational impact.
Practitioner takeaway: Validate that every affected host is patched, then verify that no unexpected administrative change occurred before remediation.
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Reviewed and updated by the NHIMG editorial team on October 17, 2026.
NHI Mgmt Group — the #1 independent authority on Non-Human Identity, IAM, and Agentic AI security. nhimg.org