CVE-2019-10750: Deeply Prototype Pollution Vulnerability

CRITICAL
Advisory Identifier: GHSA-8j4w-5fw4-rm27
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CVSS 9.8
CWE-400
Published
Advisory Summary

CVE-2019-10750 is a CRITICAL (CVSS 9.8) prototype pollution vulnerability (CWE-400: Uncontrolled Resource Consumption) affecting Deeply libraries in the npm ecosystem. The issue involves prototype pollution in deeply. Remediation is available by upgrading affected packages to version 3.1.0.

CVE-2019-10750 at a Glance

CVE Identifier CVE-2019-10750
GHSA Identifier GHSA-8j4w-5fw4-rm27
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification CWE-400: Uncontrolled Resource Consumption
Affected Product Deeply
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:3.1/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-2019-10750

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

deeply fixed: 3.1.0 
npm install deeply@3.1.0
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 deeply

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2019-10750, inspect your project dependencies using npm:

npm ls deeply

Analyze the terminal output to locate any version of Deeply in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 3.1.0), your application is affected.

Note: The npm ls deeply 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-400: Uncontrolled Resource Consumption, where the product does not properly control the allocation and maintenance of a limited resource. In Deeply, 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 `deeply` prior to 1.0.1 are vulnerable to Prototype Pollution. The package fails to validate which Object properties it updates. This allows attackers to modify the prototype of Object, causing the addition or modification of an existing property on all objects. ## Recommendation Upgrade to version 3.1.0 or later.

CVE-2019-10750 Affected Deeply Versions

1 component(s)
Fixed Versions:
3.1.0
Product / Package Ecosystem Affected Versions Fixed Version
deeply
npm/deeply
npm
< 3.1.0
3.1.0

References

NVD — CVE-2019-10750 NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-10750
snyk.io/vuln/snyk-js-deeply... WEB
https://snyk.io/vuln/SNYK-JS-DEEPLY-451026
www.npmjs.com/advisories/1030 WEB
https://www.npmjs.com/advisories/1030

Frequently Asked Questions

What is CVE-2019-10750?
CVE-2019-10750 is a security vulnerability in Deeply involving Prototype Pollution in deeply under CWE-400: Uncontrolled Resource Consumption.
Which Deeply versions are affected?
Affected versions include releases prior to 3.1.0 across affected packages: deeply.
What version fixes CVE-2019-10750?
Upgrading to 3.1.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is deeply affected?
Yes, deeply is affected in releases prior to 3.1.0. Upgrade your dependency to 3.1.0 or later.
What is the CVSS score of CVE-2019-10750?
CVE-2019-10750 has a CVSS v3.1 base score of 9.8 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2019-10750?
CVE-2019-10750 is classified under CWE-400: Uncontrolled Resource Consumption (The product does not properly control the allocation and maintenance of a limited resource.).
How can I check npm dependencies for CVE-2019-10750?
Run the dependency tree command: 'npm ls deeply'. 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-8j4w-5fw4-rm27",
  "modified" : "2021-08-17T22:18:25Z",
  "published" : "2019-08-27T17:45:33Z",
  "aliases" : [ "CVE-2019-10750" ],
  "summary" : "Prototype Pollution in deeply",
  "details" : "Versions of `deeply` prior to 1.0.1 are vulnerable to Prototype Pollution. The package fails to validate which Object properties it updates. This allows attackers to modify the prototype of Object, causing the addition or modification of an existing property on all objects.\n\n\n\n\n## Recommendation\n\nUpgrade to version 3.1.0 or later.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "deeply"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "3.1.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2019-10750"
  }, {
    "type" : "WEB",
    "url" : "https://snyk.io/vuln/SNYK-JS-DEEPLY-451026"
  }, {
    "type" : "WEB",
    "url" : "https://www.npmjs.com/advisories/1030"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-400" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2019-08-27T17:28:49Z",
    "nvd_published_at" : null
  }
}