Security readout for executives and security teams
Plain-English summary
CVE-2017-16179 is a directory traversal flaw in the dasafio Node module web server. A remote user could include parent-directory sequences in a URL to read files outside the intended web root. The provided sources say access is limited to .html files, but all listed versions are affected.
Executive priority
Treat this as a targeted cleanup item unless dasafio is internet-facing or serves sensitive HTML content. Prioritize removal or replacement because the affected range is listed as all versions and the bundle does not name a fixed version.
Technical view
The issue is CWE-22 path traversal in dasafio. URL path handling allows "../" traversal, exposing filesystem content beyond the intended directory. The CVE source notes a .html-only restriction. No CVSS score, fixed version, or vendor mitigation is present in the provided bundle.
Likely exposure
Exposure applies to applications that directly use the dasafio node module as a web server and accept external URL requests. The affected list says all versions. Organizations not using dasafio are not exposed based on the provided evidence.
Exploitation context
The sources describe a URL-based traversal condition and include a public proof-of-concept reference. CISA KEV status is false in the bundle, and no cited source states active exploitation. Impact is file disclosure, apparently limited to .html files.
Researcher notes
Evidence is sparse. The record identifies CWE-22, all versions affected, .html-only file access, and public advisory/PoC references. It does not provide CVSS, patch metadata, exploitation telemetry, or complete product lifecycle status.
Mitigation direction
- Identify and remove exposed dasafio deployments where practical.
- Check vendor or package maintainer guidance for a fixed release or deprecation notice.
- Replace dasafio with a maintained static file server if no fix is available.
- Restrict network access to any service still using dasafio.
- Review hosted .html files for sensitive content.
Validation and detection
- Search dependency manifests and lockfiles for the dasafio package.
- Confirm whether any dasafio-backed service is reachable from untrusted networks.
- Review routing and static-file handling around user-controlled URL paths.
- Check logs for suspicious traversal-like URL patterns.
- Verify that sensitive .html files are not served outside intended directories.
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-2017-16179 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://github.com/JacksonGL/NPM-Vuln-PoC/blob/master/directory-traversal/dasafioCVE reference · x_refsource_MISC
- https://nodesecurity.io/advisories/460CVE 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.