Security readout for executives and security teams
Plain-English summary
CVE-2017-16142 affects the infraserver npm module, a RESTful server. The reported issue lets an attacker use directory traversal patterns in a URL to access files outside intended paths. Business risk depends on whether this module is deployed and reachable, but exposed instances could leak sensitive filesystem data.
Executive priority
Prioritize investigation if any internet-facing Node.js service uses infraserver. The issue can expose server files, and the available sources do not identify a safe fixed version.
Technical view
The vulnerability is classified as CWE-22 directory traversal. The CVE description says infraserver can expose filesystem content when path traversal sequences are placed in the URL. The bundle lists all versions of the infraserver node module as affected. No CVSS score, authentication requirement, patch version, or fixed release is provided.
Likely exposure
Exposure is most likely in Node.js applications or services that depend on the infraserver module and expose its RESTful server routes to users or the internet.
Exploitation context
The source bundle includes a public proof-of-concept reference, but KEV is false and no cited source states active exploitation. Practical risk depends on deployment reachability and accessible filesystem permissions.
Researcher notes
Evidence is limited to the CVE record, NPM advisory reference, and public PoC reference. Avoid assuming exploitability details beyond URL-based traversal and filesystem access. Validate in a controlled environment without accessing sensitive files.
Mitigation direction
- Identify whether infraserver is present in application dependencies or deployed services.
- Check vendor or maintainer guidance for any fixed package or replacement recommendation.
- Restrict external access to affected routes until remediation is confirmed.
- Run the service with least-privilege filesystem permissions.
- Add path normalization and traversal blocking if maintaining an internal fork.
Validation and detection
- Search package manifests and lockfiles for the infraserver module.
- Map any public or internal routes served by infraserver.
- Review dependency inventory for transitive inclusion of infraserver.
- Verify service runtime permissions limit sensitive file access.
- Confirm no exposed route returns files outside intended directories.
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-2017-16142 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://nodesecurity.io/advisories/471CVE reference · x_refsource_MISC
- https://github.com/JacksonGL/NPM-Vuln-PoC/blob/master/directory-traversal/infraserverCVE 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.
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.