CVE-2018-3749: Deap Improper Input Validation Vulnerability

CRITICAL
Advisory Identifier: GHSA-xg47-r67p-vhv5
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CVSS 9.8
CWE-20
Published
Advisory Summary

CVE-2018-3749 is a CRITICAL (CVSS 9.8) improper input validation vulnerability (CWE-20: Improper Input Validation) affecting Deap libraries in the npm ecosystem. The issue involves improper input validation in deap. Remediation is available by upgrading affected packages to version 1.0.1.

CVE-2018-3749 at a Glance

CVE Identifier CVE-2018-3749
GHSA Identifier GHSA-xg47-r67p-vhv5
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification CWE-20: Improper Input Validation
Affected Product Deap
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 9.8

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:H/A:H).

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 High (I:H)
Availability High (A:H)

How to Fix CVE-2018-3749

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

deap fixed: 1.0.1 
npm install deap@1.0.1
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 deap

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2018-3749, inspect your project dependencies using npm:

npm ls deap

Analyze the terminal output to locate any version of Deap in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.0.1), your application is affected.

Note: The npm ls deap 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-20: Improper Input Validation, where the product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. In Deap, 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

The utilities function in all versions < 1.0.1 of the deap node module can be tricked into modifying the prototype of Object when the attacker can control part of the structure passed to this function. This can let an attacker add or modify existing properties that will exist on all objects.

CVE-2018-3749 Affected Deap Versions

1 component(s)
Fixed Versions:
1.0.1
Product / Package Ecosystem Affected Versions Fixed Version
deap
npm/deap
npm
< 1.0.1
1.0.1

References

NVD — CVE-2018-3749 NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-3749
Security Fix Commit FIX COMMIT
https://github.com/selfcontained/deap/commit/ed27b7e890bdd616e1ee931ea1c64228e2b52a71
hackerone.com/reports/310446 WEB
https://hackerone.com/reports/310446
Deap Source Repository REPOSITORY
https://github.com/selfcontained/deap

Frequently Asked Questions

What is CVE-2018-3749?
CVE-2018-3749 is a security vulnerability in Deap involving Improper Input Validation in Deap under CWE-20: Improper Input Validation.
Which Deap versions are affected?
Affected versions include releases prior to 1.0.1 across affected packages: deap.
What version fixes CVE-2018-3749?
Upgrading to 1.0.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is deap affected?
Yes, deap is affected in releases prior to 1.0.1. Upgrade your dependency to 1.0.1 or later.
What is the CVSS score of CVE-2018-3749?
CVE-2018-3749 has a CVSS v3.1 base score of 9.8 (CRITICAL) with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2018-3749?
CVE-2018-3749 is classified under CWE-20: Improper Input Validation (The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.).
How can I check npm dependencies for CVE-2018-3749?
Run the dependency tree command: 'npm ls deap'. 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-xg47-r67p-vhv5",
  "modified" : "2022-06-28T23:46:37Z",
  "published" : "2022-05-14T03:05:46Z",
  "aliases" : [ "CVE-2018-3749" ],
  "summary" : "Improper Input Validation in Deap",
  "details" : "The utilities function in all versions < 1.0.1 of the deap node module can be tricked into modifying the prototype of Object when the attacker can control part of the structure passed to this function. This can let an attacker add or modify existing properties that will exist on all objects.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "deap"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.0.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2018-3749"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/selfcontained/deap/commit/ed27b7e890bdd616e1ee931ea1c64228e2b52a71"
  }, {
    "type" : "WEB",
    "url" : "https://hackerone.com/reports/310446"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/selfcontained/deap"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-20" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-06-28T23:46:37Z",
    "nvd_published_at" : "2018-07-03T21:29:00Z"
  }
}