CVE-2018-16493: Static resource server Path Traversal Vulnerability

HIGH
Advisory Identifier: GHSA-45j8-pm75-5v8x
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CWE-548
Published
Advisory Summary

CVE-2018-16493 is a HIGH path traversal vulnerability (CWE-548: Exposure of Information Through Directory Listing) affecting Static resource server libraries in the npm ecosystem. The issue involves path traversal in simplehttpserver. Remediation is available in the latest vendor maintenance releases.

CVE-2018-16493 at a Glance

CVE Identifier CVE-2018-16493
GHSA Identifier GHSA-45j8-pm75-5v8x
Severity HIGH
CVSS v3.1 Base Score N/A
CWE Classification CWE-548: Exposure of Information Through Directory Listing
Affected Product Static resource server
Package Ecosystem npm
Published Date
Last Updated

How to Fix CVE-2018-16493

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

static-resource-server fixed: Latest secure release 
npm install static-resource-server@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 static-resource-server

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2018-16493, inspect your project dependencies using npm:

npm ls static-resource-server

Analyze the terminal output to locate any version of Static resource server 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 static-resource-server 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-548: Exposure of Information Through Directory Listing, where the product inappropriately exposes a directory listing with an index of all the resources located inside of the directory. In Static resource server, 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

Versions of `simplehttpserver` prior to 0.2.1 are vulnerable to Path Traversal. Due to insufficient input sanitization, attackers can access server files by using relative paths. ## Recommendation Upgrade to version 0.2.1 or later.

CVE-2018-16493 Affected Static resource server Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
static-resource-server
npm/static-resource-server
npm
≤ 1.7.2

References

NVD — CVE-2018-16493 NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-16493
hackerone.com/reports/357109 WEB
https://hackerone.com/reports/357109
hackerone.com/reports/432600 WEB
https://hackerone.com/reports/432600
GitHub Advisory / Wiki ADVISORY
https://github.com/advisories/GHSA-45j8-pm75-5v8x
www.npmjs.com/advisories/967 WEB
https://www.npmjs.com/advisories/967
www.npmjs.com/advisories/968 WEB
https://www.npmjs.com/advisories/968

Frequently Asked Questions

What is CVE-2018-16493?
CVE-2018-16493 is a security vulnerability in Static resource server involving Path Traversal in simplehttpserver under CWE-548: Exposure of Information Through Directory Listing.
Which Static resource server versions are affected?
Affected versions include releases prior to current release patches across affected packages: static-resource-server.
What version fixes CVE-2018-16493?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is static-resource-server affected?
Yes, static-resource-server is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What CWE is associated with CVE-2018-16493?
CVE-2018-16493 is classified under CWE-548: Exposure of Information Through Directory Listing (The product inappropriately exposes a directory listing with an index of all the resources located inside of the directory.).
How can I check npm dependencies for CVE-2018-16493?
Run the dependency tree command: 'npm ls static-resource-server'. 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-45j8-pm75-5v8x",
  "modified" : "2020-08-31T18:42:22Z",
  "published" : "2019-02-07T18:18:04Z",
  "aliases" : [ "CVE-2018-16493" ],
  "summary" : "Path Traversal in simplehttpserver",
  "details" : "Versions of `simplehttpserver` prior to 0.2.1 are vulnerable to Path Traversal.  Due to insufficient input sanitization, attackers can access server files by using relative paths. \n\n\n## Recommendation\n\nUpgrade to version 0.2.1 or later.",
  "severity" : [ ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "static-resource-server"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "1.7.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2018-16493"
  }, {
    "type" : "WEB",
    "url" : "https://hackerone.com/reports/357109"
  }, {
    "type" : "WEB",
    "url" : "https://hackerone.com/reports/432600"
  }, {
    "type" : "ADVISORY",
    "url" : "https://github.com/advisories/GHSA-45j8-pm75-5v8x"
  }, {
    "type" : "WEB",
    "url" : "https://www.npmjs.com/advisories/967"
  }, {
    "type" : "WEB",
    "url" : "https://www.npmjs.com/advisories/968"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-548" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2020-06-16T20:57:24Z",
    "nvd_published_at" : null
  }
}