Security readout for executives and security teams
Plain-English summary
This CVE describes an insecure file permission on D-Link DIR-850L Rev. A and Rev. B routers. A runtime file tied to storage account data is readable and writable by any local process or user on the device. The record does not provide a CVSS score, active exploitation evidence, or a confirmed vendor fix.
Executive priority
Treat this as a targeted asset hygiene issue, not a confirmed emergency. Prioritize identifying affected DIR-850L routers, removing external management exposure, and replacing or updating devices if vendor support is unavailable.
Technical view
Affected firmware sets `/var/run/storage_account_root` to mode 0666, allowing world read and write access. That can weaken confidentiality and integrity boundaries on the router if an attacker already has a way to interact with the device filesystem or local processes. The CVE record does not define CWE, CVSS, exploit prerequisites, or remediation details.
Likely exposure
Exposure is limited to D-Link DIR-850L Rev. A through FW114WWb07_h2ab_beta1 and Rev. B through FW208WWb02. The provided evidence does not establish internet-reachable exploitation by itself. Risk is higher where router administration, storage features, or local device access are available to untrusted parties.
Exploitation context
The source bundle does not show CISA KEV listing or active exploitation. The issue was disclosed as part of public research on DIR-850L vulnerabilities. Evidence provided supports an insecure permission flaw, but not a complete remote attack path for this specific CVE.
Researcher notes
The record is sparse: no CVSS, CWE, exploitability detail, or vendor fix is supplied. The key confirmed fact is world-readable and writable permissions on a runtime file in specified DIR-850L firmware. Avoid extrapolating remote code execution or credential theft without additional evidence.
Mitigation direction
- Inventory DIR-850L Rev. A and Rev. B routers and record firmware versions.
- Check D-Link guidance for fixed firmware, workarounds, or retirement recommendations.
- Restrict router management access to trusted administrative networks only.
- Disable unnecessary storage or sharing features where operationally feasible.
- Replace affected devices if no supported vendor remediation is available.
Validation and detection
- Confirm hardware revision and firmware match the affected ranges.
- Where authorized, verify permissions on `/var/run/storage_account_root`.
- Check that management interfaces are not exposed to the internet.
- Review router configuration for unexpected storage-account or administration changes.
- Document firmware status, vendor guidance, and compensating controls.
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.
CVE-2017-14427 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://pierrekim.github.io/blog/2017-09-08-dlink-850l-mydlink-cloud-0days-vulnerabilities.htmlCVE 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.