Security readout for executives and security teams
Plain-English summary
Ceph Dashboard stored user authentication JWTs in browser localStorage. If an attacker can trigger cross-site scripting in a user’s browser, they may be able to read that token and act as the user. The stated impact is confidentiality and integrity risk.
Executive priority
Treat as a targeted administrative-console risk, not a confirmed mass-exploitation emergency. Prioritize environments where Ceph Dashboard is reachable by many users, internet-exposed, or used by high-privilege administrators.
Technical view
CVE-2020-27839 maps to CWE-522 and affects ceph-dashboard 14.2.17 and 15.2.9 per the source bundle. The frontend stored authentication JWTs in localStorage, increasing token theft risk if XSS is present. No CVSS score, fixed version, or confirmed exploit activity is provided.
Likely exposure
Exposure is most likely in environments running the listed Ceph Dashboard versions, especially where privileged users access the dashboard and browser-side XSS risk exists. Business exposure depends on dashboard access scope and user privileges.
Exploitation context
The source bundle does not show CISA KEV listing or cited active exploitation. The issue requires a browser-side path such as XSS to access tokens stored in localStorage; the bundle does not provide exploit details.
Researcher notes
Evidence is limited to the CVE description, CVE record sources, and Red Hat Bugzilla reference. No CVSS vector, patch identifier, exploit status, or detailed affected-version range beyond 14.2.17 and 15.2.9 is included.
Mitigation direction
- Check Red Hat or Ceph guidance for affected builds and fixed releases.
- Restrict Ceph Dashboard access to trusted administrative networks.
- Review and reduce XSS exposure in dashboard-adjacent workflows.
- Invalidate sessions or tokens after remediation where feasible.
- Monitor dashboard access for unusual authenticated activity.
Validation and detection
- Inventory Ceph Dashboard deployments and confirm versions.
- Check whether affected deployments store JWTs in browser localStorage.
- Review whether the dashboard is exposed beyond trusted admin users.
- Confirm vendor advisory status before declaring remediation complete.
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-522: Credential and account abuse lookup
Authentication and credential weaknesses can make valid-account abuse and credential telemetry useful review starting points. 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 lookupCredential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2020-27839 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://bugzilla.redhat.com/show_bug.cgi?id=1901330CVE reference · x_refsource_MISC
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.
Insufficiently Protected Credentials
Insufficiently Protected Credentials represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.