CVE-2017-18354: Rendertron Rendertron LFI Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-j87c-cj65-vmh5
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CVSS 7.5
CWE-22
Published
Advisory Summary

CVE-2017-18354 is a HIGH (CVSS 7.5) rendertron lfi vulnerability vulnerability (CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')) affecting Rendertron libraries in the npm ecosystem. The issue involves rendertron lfi vulnerability. Remediation is available by upgrading affected packages to version 1.1.0.

CVE-2017-18354 at a Glance

CVE Identifier CVE-2017-18354
GHSA Identifier GHSA-j87c-cj65-vmh5
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 Rendertron
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-2017-18354

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

rendertron fixed: 1.1.0 
npm install rendertron@1.1.0
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 rendertron

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2017-18354, inspect your project dependencies using npm:

npm ls rendertron

Analyze the terminal output to locate any version of Rendertron in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.1.0), your application is affected.

Note: The npm ls rendertron 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 Rendertron, 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

Rendertron 1.0.0 allows for alternative protocols such as 'file://' introducing a Local File Inclusion (LFI) bug where arbitrary files can be read by a remote attacker.

CVE-2017-18354 Affected Rendertron Versions

1 component(s)
Fixed Versions:
1.1.0
Product / Package Ecosystem Affected Versions Fixed Version
rendertron
npm/rendertron
npm
< 1.1.0
1.1.0

References

NVD — CVE-2017-18354 NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-18354
Rendertron Source Repository REPOSITORY
https://github.com/GoogleChrome/rendertron/pull/88
Security Fix Commit FIX COMMIT
https://github.com/GoogleChrome/rendertron/commit/8d70628c96ae72eff6eebb451d26fc9ed6b58b0e
bugs.chromium.org/p/chromium/issues/d... WEB
https://bugs.chromium.org/p/chromium/issues/detail?id=759111
Rendertron Source Repository REPOSITORY
https://github.com/GoogleChrome/rendertron
GitHub Advisory / Wiki ADVISORY
https://github.com/advisories/GHSA-j87c-cj65-vmh5

Frequently Asked Questions

What is CVE-2017-18354?
CVE-2017-18354 is a security vulnerability in Rendertron involving rendertron LFI vulnerability under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal').
Which Rendertron versions are affected?
Affected versions include releases prior to 1.1.0 across affected packages: rendertron.
What version fixes CVE-2017-18354?
Upgrading to 1.1.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is rendertron affected?
Yes, rendertron is affected in releases prior to 1.1.0. Upgrade your dependency to 1.1.0 or later.
What is the CVSS score of CVE-2017-18354?
CVE-2017-18354 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-2017-18354?
CVE-2017-18354 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-2017-18354?
Run the dependency tree command: 'npm ls rendertron'. 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-j87c-cj65-vmh5",
  "modified" : "2023-09-06T20:06:31Z",
  "published" : "2019-01-04T17:41:51Z",
  "aliases" : [ "CVE-2017-18354" ],
  "summary" : "rendertron LFI vulnerability",
  "details" : "Rendertron 1.0.0 allows for alternative protocols such as 'file://' introducing a Local File Inclusion (LFI) bug where arbitrary files can be read by a remote attacker.",
  "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" : "rendertron"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.1.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2017-18354"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/GoogleChrome/rendertron/pull/88"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/GoogleChrome/rendertron/commit/8d70628c96ae72eff6eebb451d26fc9ed6b58b0e"
  }, {
    "type" : "WEB",
    "url" : "https://bugs.chromium.org/p/chromium/issues/detail?id=759111"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/GoogleChrome/rendertron"
  }, {
    "type" : "ADVISORY",
    "url" : "https://github.com/advisories/GHSA-j87c-cj65-vmh5"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-22" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2020-06-16T21:42:38Z",
    "nvd_published_at" : null
  }
}