CVE-2020-7618: Sds Prototype Pollution Vulnerability

MODERATE
Advisory Identifier: GHSA-cxm3-284p-qc4v
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CVSS 5.3
CWE-1321 CWE-915
Published
Advisory Summary

CVE-2020-7618 is a MODERATE (CVSS 5.3) prototype pollution vulnerability (CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')) affecting Sds libraries in the npm ecosystem. The issue involves prototype pollution in sds. Remediation is available by upgrading affected packages to version 4.0.0.

CVE-2020-7618 at a Glance

CVE Identifier CVE-2020-7618
GHSA Identifier GHSA-cxm3-284p-qc4v
Severity MODERATE
CVSS v3.1 Base Score 5.3
CWE Classification CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Affected Product Sds
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 5.3

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:N/I:L/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 None (C:N)
Integrity Low (I:L)
Availability None (A:N)

How to Fix CVE-2020-7618

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

sds fixed: 4.0.0 
npm install sds@4.0.0
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 sds

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2020-7618, inspect your project dependencies using npm:

npm ls sds

Analyze the terminal output to locate any version of Sds in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 4.0.0), your application is affected.

Note: The npm ls sds 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 Sds, 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

Affected versions of `sds` are vulnerable to prototype pollution. The `set` function does not restrict the modification of an Object's prototype, which may allow an attacker to add or modify an existing property that will exist on all objects. ## Recommendation Upgrade to version 4.0.0 or later

CVE-2020-7618 Affected Sds Versions

1 component(s)
Fixed Versions:
4.0.0
Product / Package Ecosystem Affected Versions Fixed Version
sds
npm/sds
npm
< 4.0.0
4.0.0

References

NVD — CVE-2020-7618 NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-7618
Sds Source Repository REPOSITORY
https://github.com/monsterkodi/sds/blob/master/js/set.js#L31
snyk.io/vuln/snyk-js-sds-56... WEB
https://snyk.io/vuln/SNYK-JS-SDS-564123
www.npmjs.com/advisories/1506 WEB
https://www.npmjs.com/advisories/1506

Frequently Asked Questions

What is CVE-2020-7618?
CVE-2020-7618 is a security vulnerability in Sds involving Prototype Pollution in sds under CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution').
Which Sds versions are affected?
Affected versions include releases prior to 4.0.0 across affected packages: sds.
What version fixes CVE-2020-7618?
Upgrading to 4.0.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is sds affected?
Yes, sds is affected in releases prior to 4.0.0. Upgrade your dependency to 4.0.0 or later.
What is the CVSS score of CVE-2020-7618?
CVE-2020-7618 has a CVSS v3.1 base score of 5.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.
What CWE is associated with CVE-2020-7618?
CVE-2020-7618 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-2020-7618?
Run the dependency tree command: 'npm ls sds'. 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-cxm3-284p-qc4v",
  "modified" : "2021-07-29T15:56:20Z",
  "published" : "2020-09-03T15:53:12Z",
  "aliases" : [ "CVE-2020-7618" ],
  "summary" : "Prototype Pollution in sds",
  "details" : "Affected versions of `sds` are vulnerable to prototype pollution. The `set` function does not restrict the modification of an Object's prototype, which may allow an attacker to add or modify an existing property that will exist on all objects.\n\n## Recommendation\n\nUpgrade to version 4.0.0 or later",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "sds"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "4.0.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-7618"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/monsterkodi/sds/blob/master/js/set.js#L31"
  }, {
    "type" : "WEB",
    "url" : "https://snyk.io/vuln/SNYK-JS-SDS-564123"
  }, {
    "type" : "WEB",
    "url" : "https://www.npmjs.com/advisories/1506"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-1321", "CWE-915" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2020-08-31T19:01:47Z",
    "nvd_published_at" : "2020-04-07T14:15:00Z"
  }
}