CVE-2020-8158: Typeorm TypeORM Vulnerable To MAID And Vulnerability

CRITICAL
Advisory Identifier: GHSA-pf2j-9qmp-jqr2
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CVSS 9.8
CWE-1321 CWE-471
Published
Advisory Summary

CVE-2020-8158 is a CRITICAL (CVSS 9.8) typeorm vulnerable to maid and vulnerability (CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')) affecting Typeorm libraries in the npm ecosystem. The issue involves typeorm vulnerable to maid and prototype pollution. Remediation is available by upgrading affected packages to version 0.2.25.

CVE-2020-8158 at a Glance

CVE Identifier CVE-2020-8158
GHSA Identifier GHSA-pf2j-9qmp-jqr2
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Affected Product Typeorm
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-2020-8158

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

typeorm fixed: 0.2.25 
npm install typeorm@0.2.25
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 typeorm

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2020-8158, inspect your project dependencies using npm:

npm ls typeorm

Analyze the terminal output to locate any version of Typeorm in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.2.25), your application is affected.

Note: The npm ls typeorm 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-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution'), where the product receives input from an upstream component that specifies attributes that are to be initialized or updated in an object, but it does not properly control modifications of attributes of the object prototype. In Typeorm, 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

Prototype pollution vulnerability in the TypeORM package < 0.2.25 may allow attackers to add or modify Object properties leading to further denial of service or SQL injection attacks.

CVE-2020-8158 Affected Typeorm Versions

1 component(s)
Fixed Versions:
0.2.25
Product / Package Ecosystem Affected Versions Fixed Version
typeorm
npm/typeorm
npm
< 0.2.25
0.2.25

References

NVD — CVE-2020-8158 NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-8158
hackerone.com/reports/869574 WEB
https://hackerone.com/reports/869574

Frequently Asked Questions

What is CVE-2020-8158?
CVE-2020-8158 is a security vulnerability in Typeorm involving TypeORM vulnerable to MAID and Prototype Pollution under CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution').
Which Typeorm versions are affected?
Affected versions include releases prior to 0.2.25 across affected packages: typeorm.
What version fixes CVE-2020-8158?
Upgrading to 0.2.25 (or the latest patched release for your respective branch) resolves the vulnerability.
Is typeorm affected?
Yes, typeorm is affected in releases prior to 0.2.25. Upgrade your dependency to 0.2.25 or later.
What is the CVSS score of CVE-2020-8158?
CVE-2020-8158 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-2020-8158?
CVE-2020-8158 is classified under CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') (The product receives input from an upstream component that specifies attributes that are to be initialized or updated in an object, but it does not properly control modifications of attributes of the object prototype.).
How can I check npm dependencies for CVE-2020-8158?
Run the dependency tree command: 'npm ls typeorm'. 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-pf2j-9qmp-jqr2",
  "modified" : "2022-08-11T14:59:34Z",
  "published" : "2021-05-07T16:46:42Z",
  "aliases" : [ "CVE-2020-8158" ],
  "summary" : "TypeORM vulnerable to MAID and Prototype Pollution",
  "details" : "Prototype pollution vulnerability in the TypeORM package < 0.2.25 may allow attackers to add or modify Object properties leading to further denial of service or SQL injection attacks.",
  "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" : "typeorm"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.2.25"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-8158"
  }, {
    "type" : "WEB",
    "url" : "https://hackerone.com/reports/869574"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-1321", "CWE-471" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2021-04-28T17:29:12Z",
    "nvd_published_at" : "2020-09-18T21:15:00Z"
  }
}