Vulnerabilities in pkg:npm/tunnel-agent

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Advisory Summary

GHSA-xc7v-wxcw-j472 is a MODERATE memory exposure vulnerability (CWE-200: Exposure of Sensitive Information to an Unauthorized Actor) affecting Tunnel agent libraries in the npm ecosystem. The issue involves memory exposure in tunnel-agent. Remediation is available by upgrading affected packages to version 0.6.0.

1 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:npm/tunnel-agent

1 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:npm/tunnel-agent. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-xc7v-wxcw-j472 - MODERATE Memory Exposure in tunnel-agent

GHSA-xc7v-wxcw-j472 at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-xc7v-wxcw-j472
Severity MODERATE
CVSS v3.1 Base Score N/A
CWE Classification CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
Affected Product Tunnel agent
Package Ecosystem npm
Published Date
Last Updated

How to Fix GHSA-xc7v-wxcw-j472

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

tunnel-agent fixed: 0.6.0 
npm install tunnel-agent@0.6.0
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 tunnel-agent

How to Check if You Are Affected

To determine whether your Node.js application is affected by GHSA-xc7v-wxcw-j472, inspect your project dependencies using npm:

npm ls tunnel-agent

Analyze the terminal output to locate any version of Tunnel agent in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.6.0), your application is affected.

Note: The npm ls tunnel-agent 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-200: Exposure of Sensitive Information to an Unauthorized Actor, where the product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. In Tunnel agent, 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 `tunnel-agent` before 0.6.0 are vulnerable to memory exposure. This is exploitable if user supplied input is provided to the auth value and is a number. Proof-of-concept: ```js require('request')({ method: 'GET', uri: 'http://www.example.com', tunnel: true, proxy:{ protocol: 'http:', host:'127.0.0.1', port:8080, auth:USERSUPPLIEDINPUT // number } }); ``` ## Recommendation Update to version 0.6.0 or later.

GHSA-xc7v-wxcw-j472 Affected Tunnel agent Versions

1 component(s)
Fixed Versions:
0.6.0
Product / Package Ecosystem Affected Versions Fixed Version
tunnel-agent
npm/tunnel-agent
npm
< 0.6.0
0.6.0

References

Security Fix Commit FIX COMMIT
https://github.com/request/tunnel-agent/commit/9ca95ec7219daface8a6fc2674000653de0922c0
Tunnel agent Source Repository REPOSITORY
https://gist.github.com/ChALkeR/fd6b2c445834244e7d440a043f9d2ff4
www.npmjs.com/advisories/598 WEB
https://www.npmjs.com/advisories/598

Frequently Asked Questions

What is GHSA-xc7v-wxcw-j472?
GHSA-xc7v-wxcw-j472 is a security vulnerability in Tunnel agent involving Memory Exposure in tunnel-agent under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor.
Which Tunnel agent versions are affected?
Affected versions include releases prior to 0.6.0 across affected packages: tunnel-agent.
What version fixes GHSA-xc7v-wxcw-j472?
Upgrading to 0.6.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is tunnel-agent affected?
Yes, tunnel-agent is affected in releases prior to 0.6.0. Upgrade your dependency to 0.6.0 or later.
What CWE is associated with GHSA-xc7v-wxcw-j472?
GHSA-xc7v-wxcw-j472 is classified under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor (The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.).
How can I check npm dependencies for GHSA-xc7v-wxcw-j472?
Run the dependency tree command: 'npm ls tunnel-agent'. 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-xc7v-wxcw-j472",
  "modified" : "2020-08-31T18:29:19Z",
  "published" : "2019-06-03T17:08:26Z",
  "aliases" : [ ],
  "summary" : "Memory Exposure in tunnel-agent",
  "details" : "Versions of `tunnel-agent` before 0.6.0 are vulnerable to memory exposure.\n\nThis is exploitable if user supplied input is provided to the auth value and is a number.\n\nProof-of-concept:\n```js\nrequire('request')({\n  method: 'GET',\n  uri: 'http://www.example.com',\n  tunnel: true,\n  proxy:{\n    protocol: 'http:',\n    host:'127.0.0.1',\n    port:8080,\n    auth:USERSUPPLIEDINPUT // number\n  }\n});\n```\n\n\n## Recommendation\n\nUpdate to version 0.6.0 or later.",
  "severity" : [ ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "tunnel-agent"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.6.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/request/tunnel-agent/commit/9ca95ec7219daface8a6fc2674000653de0922c0"
  }, {
    "type" : "WEB",
    "url" : "https://gist.github.com/ChALkeR/fd6b2c445834244e7d440a043f9d2ff4"
  }, {
    "type" : "WEB",
    "url" : "https://www.npmjs.com/advisories/598"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-200" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2019-06-03T17:08:06Z",
    "nvd_published_at" : null
  }
}