Security readout for executives and security teams
Plain-English summary
CVE-2017-8451 is an open redirect in the Kibana login page when X-Pack is installed. An attacker could craft a Kibana link that sends users to an arbitrary website. The main business risk is phishing or credential-harvesting using a trusted Kibana URL, not direct system takeover.
Executive priority
Treat this as a moderate-priority cleanup item. It is not reported as actively exploited, but exposed legacy Kibana login pages can lend credibility to phishing attempts. Prioritize remediation for internet-facing or broadly accessible administrative portals.
Technical view
The source describes CWE-601 in Kibana versions before 5.3.1 with X-Pack installed. The vulnerable login page can redirect to an attacker-chosen external site. No CVSS vector, exploit maturity detail, or deeper technical root cause is provided in the bundle.
Likely exposure
Exposure is most likely where Kibana with X-Pack Security before 5.3.1 is deployed, especially if users access it through reachable internal or internet-facing URLs. Systems without X-Pack installed are not identified as affected by the provided sources.
Exploitation context
The bundle does not cite active exploitation, and KEV status is false. Practical abuse would require convincing a user to follow a crafted trusted-looking Kibana login link. The vulnerability may support phishing workflows but is not described as enabling code execution or data access by itself.
Researcher notes
Evidence is sparse: the CVE description identifies affected versions, X-Pack dependency, and open redirect behavior only. No CVSS, proof of exploitation, request parameters, or vendor workaround details are included. Avoid expanding affected scope beyond Kibana before 5.3.1 with X-Pack installed.
Mitigation direction
- Upgrade affected Kibana/X-Pack deployments to version 5.3.1 or later.
- Check Elastic security guidance for any environment-specific instructions.
- Restrict access to Kibana login pages to trusted networks where possible.
- Educate administrators about phishing risk from trusted internal URLs.
Validation and detection
- Inventory Kibana deployments and record versions.
- Confirm whether X-Pack Security is installed on each Kibana instance.
- Flag any Kibana/X-Pack deployment older than 5.3.1.
- Review login-page access logs for suspicious external redirect patterns.
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.
CWE-601: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2017-8451 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://www.elastic.co/community/securityCVE 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.
URL Redirection to Untrusted Site ('Open Redirect')
URL Redirection to Untrusted Site ('Open Redirect') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.