CVE-2020-28282: Getobject Prototype Pollution Vulnerability

CRITICAL
Advisory Identifier: GHSA-957j-59c2-j692
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CVSS 9.8
CWE-1321
Published
Advisory Summary

CVE-2020-28282 is a CRITICAL (CVSS 9.8) prototype pollution vulnerability (CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')) affecting Getobject libraries in the npm ecosystem. The issue involves prototype pollution in getobject. Remediation is available by upgrading affected packages to version 1.0.0.

CVE-2020-28282 at a Glance

CVE Identifier CVE-2020-28282
GHSA Identifier GHSA-957j-59c2-j692
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Affected Product Getobject
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-2020-28282

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

getobject fixed: 1.0.0 
npm install getobject@1.0.0
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 getobject

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2020-28282, inspect your project dependencies using npm:

npm ls getobject

Analyze the terminal output to locate any version of Getobject in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.0.0), your application is affected.

Note: The npm ls getobject 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 Getobject, 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 'getobject' version 0.1.0 allows an attacker to cause a denial of service and may lead to remote code execution.

CVE-2020-28282 Affected Getobject Versions

1 component(s)
Fixed Versions:
1.0.0
Product / Package Ecosystem Affected Versions Fixed Version
getobject
npm/getobject
npm
< 1.0.0
1.0.0

References

NVD — CVE-2020-28282 NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-28282
Getobject Source Repository REPOSITORY
https://github.com/cowboy/node-getobject
Getobject Source Repository REPOSITORY
https://github.com/cowboy/node-getobject/blob/aba04a8e1d6180eb39eff09990c3a43886ba8937/lib/getobject.js#L48
www.whitesourcesoftware.com/vulnerability-datab... WEB
https://www.whitesourcesoftware.com/vulnerability-database/CVE-2020-28282

Frequently Asked Questions

What is CVE-2020-28282?
CVE-2020-28282 is a security vulnerability in Getobject involving Prototype pollution in getobject under CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution').
Which Getobject versions are affected?
Affected versions include releases prior to 1.0.0 across affected packages: getobject.
What version fixes CVE-2020-28282?
Upgrading to 1.0.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is getobject affected?
Yes, getobject is affected in releases prior to 1.0.0. Upgrade your dependency to 1.0.0 or later.
What is the CVSS score of CVE-2020-28282?
CVE-2020-28282 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-2020-28282?
CVE-2020-28282 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-2020-28282?
Run the dependency tree command: 'npm ls getobject'. 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-957j-59c2-j692",
  "modified" : "2023-09-07T18:57:59Z",
  "published" : "2021-10-12T16:26:37Z",
  "aliases" : [ "CVE-2020-28282" ],
  "summary" : "Prototype pollution in getobject",
  "details" : "Prototype pollution vulnerability in 'getobject' version 0.1.0 allows an attacker to cause a denial of service and may lead to remote code execution.",
  "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" : "getobject"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.0.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-28282"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/cowboy/node-getobject"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/cowboy/node-getobject/blob/aba04a8e1d6180eb39eff09990c3a43886ba8937/lib/getobject.js#L48"
  }, {
    "type" : "WEB",
    "url" : "https://www.whitesourcesoftware.com/vulnerability-database/CVE-2020-28282"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-1321" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2021-10-08T22:07:57Z",
    "nvd_published_at" : "2020-12-29T18:15:00Z"
  }
}