CVE-2017-16155: Fast http cli Path Traversal Vulnerability

HIGH
Advisory Identifier: GHSA-9frq-f867-hgqc
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CVSS 7.5
CWE-22
Published
Advisory Summary

CVE-2017-16155 is a HIGH (CVSS 7.5) path traversal vulnerability (CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')) affecting Fast http cli libraries in the npm ecosystem. The issue involves directory traversal in fast-http-cli. Remediation is available in the latest vendor maintenance releases.

CVE-2017-16155 at a Glance

CVE Identifier CVE-2017-16155
GHSA Identifier GHSA-9frq-f867-hgqc
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected Product Fast http cli
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 7.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity None (I:N)
Availability None (A:N)

How to Fix CVE-2017-16155

To remediate this vulnerability, upgrade all affected Fast http cli dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

fast-http-cli fixed: Latest secure release 
npm install fast-http-cli@Latest secure release
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

npm ls fast-http-cli

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2017-16155, inspect your project dependencies using npm:

npm ls fast-http-cli

Analyze the terminal output to locate any version of Fast http cli in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The npm ls fast-http-cli command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'), where the product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. In Fast http cli, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

`fast-http-cli` is the command line interface for `fast-http`, a simple web server. `fast-http-cli` is vulnerable to a directory traversal issue, giving an attacker access to the filesystem by placing "../" in the url. **Example request:** ```http GET /../../../../../../../../../../etc/passwd HTTP/1.1 host: localhost ``` and server Response: ```http HTTP/1.1 200 OK Date: Thu, 04 May 2017 23:59:18 GMT Connection: keep-alive Transfer-Encoding: chunked {contents of /etc/passwd} ``` ## Recommendation No patch is available for this vulnerability. It is recommended that the package is only used for local development, and if the functionality is needed for production, a different package is used instead.

CVE-2017-16155 Affected Fast http cli Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
fast-http-cli
npm/fast-http-cli
npm
≤ 0.0.8

References

NVD — CVE-2017-16155 NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-16155
Fast http cli Source Repository REPOSITORY
https://github.com/JacksonGL/NPM-Vuln-PoC/tree/master/directory-traversal/fast-http-cli
GitHub Advisory / Wiki ADVISORY
https://github.com/advisories/GHSA-9frq-f867-hgqc
www.npmjs.com/advisories/383 WEB
https://www.npmjs.com/advisories/383

Frequently Asked Questions

What is CVE-2017-16155?
CVE-2017-16155 is a security vulnerability in Fast http cli involving Directory Traversal in fast-http-cli under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal').
Which Fast http cli versions are affected?
Affected versions include releases prior to current release patches across affected packages: fast-http-cli.
What version fixes CVE-2017-16155?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is fast-http-cli affected?
Yes, fast-http-cli is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2017-16155?
CVE-2017-16155 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
What CWE is associated with CVE-2017-16155?
CVE-2017-16155 is classified under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.).
How can I check npm dependencies for CVE-2017-16155?
Run the dependency tree command: 'npm ls fast-http-cli'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-9frq-f867-hgqc",
  "modified" : "2023-09-11T23:13:19Z",
  "published" : "2018-07-23T20:46:25Z",
  "aliases" : [ "CVE-2017-16155" ],
  "summary" : "Directory Traversal in fast-http-cli",
  "details" : "`fast-http-cli` is the command line interface for `fast-http`, a simple web server.\n\n`fast-http-cli` is vulnerable to a directory traversal issue, giving an attacker access to the filesystem by placing \"../\" in the url.\n\n**Example request:**\n```http\nGET /../../../../../../../../../../etc/passwd HTTP/1.1\nhost: localhost\n```\n and server Response:\n```http\nHTTP/1.1 200 OK\nDate: Thu, 04 May 2017 23:59:18 GMT\nConnection: keep-alive\nTransfer-Encoding: chunked\n\n{contents of /etc/passwd}\n```\n\n\n## Recommendation\n\nNo patch is available for this vulnerability.\n\nIt is recommended that the package is only used for local development, and if the functionality is needed for production, a different package is used instead.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "fast-http-cli"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "0.0.8"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2017-16155"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/JacksonGL/NPM-Vuln-PoC/tree/master/directory-traversal/fast-http-cli"
  }, {
    "type" : "ADVISORY",
    "url" : "https://github.com/advisories/GHSA-9frq-f867-hgqc"
  }, {
    "type" : "WEB",
    "url" : "https://www.npmjs.com/advisories/383"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-22" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2020-06-16T21:28:25Z",
    "nvd_published_at" : null
  }
}