Security readout for executives and security teams
Plain-English summary
CVE-2017-8452 is an availability issue in older Kibana. When Kibana before 5.2.1 is configured for SSL client access, certain requests can leave file descriptors open until the process crashes. The main business risk is monitoring and search dashboard downtime.
Executive priority
Treat this as a targeted legacy remediation item. It is not supported as actively exploited, but vulnerable dashboards can crash and disrupt security or operations visibility.
Technical view
Affected Kibana versions before 5.2.1 may fail to release file descriptors after certain SSL client access requests. This matches CWE-775 and can cause descriptor exhaustion and process crash over time. The sources do not provide CVSS, request details, or authentication requirements.
Likely exposure
Exposure is limited to environments running Elastic Kibana before 5.2.1 with SSL client access configured. Legacy internet-facing Kibana instances or shared operations dashboards would carry the most operational impact.
Exploitation context
The provided sources do not show CISA KEV listing or confirmed active exploitation. They describe a crash condition after certain requests, but do not provide exploit mechanics or real-world incident evidence.
Researcher notes
Evidence is sparse: no CVSS vector, no detailed advisory text, and no exploitation data are included. The affected condition is configuration-specific, so validation should focus on version and SSL client access state.
Mitigation direction
- Upgrade Kibana to 5.2.1 or later where feasible.
- Review Elastic security guidance for supported remediation details.
- Restrict network access to legacy Kibana instances.
- Monitor Kibana process stability and file descriptor usage.
Validation and detection
- Inventory Kibana versions across all environments.
- Confirm whether SSL client access is configured.
- Check uptime logs for repeated Kibana process crashes.
- Review operating system file descriptor exhaustion indicators.
- Verify upgraded instances are no longer before version 5.2.1.
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-775: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. 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-2017-8452 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.
Missing Release of File Descriptor or Handle after Effective Lifetime
Missing Release of File Descriptor or Handle after Effective Lifetime represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.