Security readout for executives and security teams
Plain-English summary
CVE-2015-7561 describes an authorization weakness in Kubernetes as used by OpenShift3. An authenticated remote user could use another user's private container image if they knew the image name. The public record does not provide CVSS, named affected versions, or confirmed exploitation.
Executive priority
Prioritize this if legacy OpenShift3 still supports multi-user or tenant workloads with private images. The issue can undermine confidentiality and tenancy boundaries, but urgency is reduced by authenticated access requirements and lack of confirmed exploitation in the provided evidence.
Technical view
The issue is an access-control failure around private image use in OpenShift3 Kubernetes. The CVE description states remote authenticated users could use private images belonging to other users when the image name was known. Available bundle evidence does not identify exact vulnerable versions, patch levels, CWE, or detailed remediation.
Likely exposure
Exposure is most relevant to legacy OpenShift3 environments using Kubernetes private images with multiple authenticated users or tenants. Organizations without OpenShift3, private image workflows, or shared cluster access are less likely to be affected based on the provided sources.
Exploitation context
The provided sources do not show CISA KEV listing or active exploitation. The vulnerability requires authenticated access and knowledge of a private image name, so the main risk is cross-user or cross-project misuse inside a shared OpenShift3 environment.
Researcher notes
Evidence is limited to the CVE description and references to a Kubernetes pull request and Red Hat Bugzilla entry. The bundle does not include CVSS, CWE, exact affected versions, patch identifiers, or exploit confirmation, so conclusions should remain scoped to OpenShift3 private image authorization.
Mitigation direction
- Check Red Hat and Kubernetes guidance for affected OpenShift3 versions and fixed releases.
- Inventory OpenShift3 clusters that host private images for multiple users or projects.
- Restrict cluster access to trusted users until remediation status is confirmed.
- Review private image authorization controls and registry access policies.
- Treat image-name secrecy as insufficient protection for private images.
Validation and detection
- Identify whether any OpenShift3 Kubernetes environments remain in use.
- Review private image usage across projects or namespaces for unexpected consumers.
- Check audit or registry logs for private image pulls by unexpected users.
- Compare cluster version and configuration against vendor guidance or referenced fixes.
- Document evidence gaps where affected versions or patch status cannot be confirmed.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
Container behavior lookup
The affected technology mentions containers, so container-specific ATT&CK technique review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2015-7561 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/kubernetes/kubernetes/pull/18909CVE reference · x_refsource_CONFIRM
- https://bugzilla.redhat.com/show_bug.cgi?id=1291963CVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.