Security readout for executives and security teams
Plain-English summary
CVE-2020-14366 can let an unauthenticated remote user expose files through Keycloak’s resources endpoint when affected URL paths are encoded in a specific way. The public record says exposure is limited to a few folder hierarchies, but confidentiality impact can be high.
Executive priority
Treat as a medium-priority confidentiality issue. Prioritize exposed identity infrastructure because Keycloak commonly supports authentication workflows, but do not escalate to emergency status without local exposure evidence or vendor-specific indicators.
Technical view
Keycloak before 12.0.0 has a CWE-22 path traversal flaw. The resources endpoint transforms URL paths into file paths, and URL-encoded path segments can bypass intended path handling. CVSS 3.1 is 6.8 with network attack vector, high complexity, no privileges, no user interaction, changed scope, and high confidentiality impact.
Likely exposure
Organizations running Red Hat Keycloak versions earlier than 12.0.0 are potentially exposed, especially if the Keycloak service is reachable from untrusted networks. The source bundle does not identify affected CPEs or specific deployment configurations.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. The CVSS vector indicates exploitation is remote and unauthenticated, but high complexity. The expected impact is data exposure, not integrity or availability compromise.
Researcher notes
Evidence is limited to the CVE description, CVSS vector, affected version boundary, CWE-22 classification, and Red Hat Bugzilla reference. No exploit details, indicators, or file hierarchy specifics are provided in the source bundle.
Mitigation direction
- Upgrade affected Keycloak deployments to version 12.0.0 or later.
- Check Red Hat vendor guidance for supported fixed builds and backports.
- Reduce untrusted network access to Keycloak where operationally possible.
- Review reverse proxy rules for unnecessary exposure of Keycloak resource paths.
Validation and detection
- Inventory Keycloak deployments and confirm exact versions are before or after 12.0.0.
- Identify internet-facing or partner-facing Keycloak services.
- Review access logs for suspicious encoded traversal-like requests to resource paths.
- Confirm remediation by verifying all affected instances run fixed vendor-supported builds.
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-22: File access and web shell behavior lookup
File traversal and upload weaknesses can lead teams to review file, web shell, execution, and collection telemetry. 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 lookupFile access behavior lookup
The CVE wording references file access or upload behavior, so file telemetry and web shell review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2020-14366 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
- Medium
- CVSS
- 6.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
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 vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N2.24Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.8MediumVector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14366CVE 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.
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.