CVE-2020-7697: Mock2easy Code Injection Vulnerability

CRITICAL
Advisory Identifier: GHSA-g4xj-wcq6-qwx5
Share
CVSS 9.8
CWE-77
Published
Advisory Summary

CVE-2020-7697 is a CRITICAL (CVSS 9.8) code injection vulnerability (CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')) affecting Mock2easy libraries in the npm ecosystem. The issue involves code injection in mock2easy. Remediation is available in the latest vendor maintenance releases.

CVE-2020-7697 at a Glance

CVE Identifier CVE-2020-7697
GHSA Identifier GHSA-g4xj-wcq6-qwx5
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')
Affected Product Mock2easy
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-2020-7697

To remediate this vulnerability, upgrade all affected Mock2easy dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

mock2easy fixed: Latest secure release 
npm install mock2easy@Latest secure release
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 mock2easy

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2020-7697, inspect your project dependencies using npm:

npm ls mock2easy

Analyze the terminal output to locate any version of Mock2easy in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The npm ls mock2easy 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-77: Improper Neutralization of Special Elements used in a Command ('Command Injection'), where the product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. In Mock2easy, 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

This affects all versions up to and including version 0.0.24 of package mock2easy. a malicious user could inject commands through the `_data` variable: Affected Area ```js require('../server/getJsonByCurl')(mock2easy, function(error, stdout) { if (error) { return res.json(500, error); } res.json(JSON.parse(stdout)); }, '', _data.interfaceUrl, query, _data.cookie, _data.interfaceType);```

CVE-2020-7697 Affected Mock2easy Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
mock2easy
npm/mock2easy
npm
≤ 0.0.24

References

NVD — CVE-2020-7697 NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-7697
Mock2easy Source Repository REPOSITORY
https://github.com/appLhui/mock2easy/blob/1da728fa0f61cc29fb415f0677e54ad4902261d3/routes/index.js#L132-L139
snyk.io/vuln/snyk-js-mock2e... WEB
https://snyk.io/vuln/SNYK-JS-MOCK2EASY-572312
www.npmjs.com/package/mock2easy WEB
https://www.npmjs.com/package/mock2easy

Frequently Asked Questions

What is CVE-2020-7697?
CVE-2020-7697 is a security vulnerability in Mock2easy involving Code injection in mock2easy under CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection').
Which Mock2easy versions are affected?
Affected versions include releases prior to current release patches across affected packages: mock2easy.
What version fixes CVE-2020-7697?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is mock2easy affected?
Yes, mock2easy is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2020-7697?
CVE-2020-7697 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-2020-7697?
CVE-2020-7697 is classified under CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection') (The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.).
How can I check npm dependencies for CVE-2020-7697?
Run the dependency tree command: 'npm ls mock2easy'. 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-g4xj-wcq6-qwx5",
  "modified" : "2023-09-08T19:29:12Z",
  "published" : "2021-05-06T18:25:58Z",
  "aliases" : [ "CVE-2020-7697" ],
  "summary" : "Code injection in mock2easy",
  "details" : "This affects all versions up to and including version 0.0.24 of package mock2easy. a malicious user could inject commands through the `_data` variable: \n\nAffected Area\n\n```js\nrequire('../server/getJsonByCurl')(mock2easy, function(error, stdout) {\n    if (error) {\n        return res.json(500, error);\n    }\n    res.json(JSON.parse(stdout));\n}, '', _data.interfaceUrl, query, _data.cookie, _data.interfaceType);```",
  "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" : "mock2easy"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "0.0.24"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-7697"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/appLhui/mock2easy/blob/1da728fa0f61cc29fb415f0677e54ad4902261d3/routes/index.js#L132-L139"
  }, {
    "type" : "WEB",
    "url" : "https://snyk.io/vuln/SNYK-JS-MOCK2EASY-572312"
  }, {
    "type" : "WEB",
    "url" : "https://www.npmjs.com/package/mock2easy"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-77" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2021-05-06T18:23:33Z",
    "nvd_published_at" : "2020-07-29T13:15:00Z"
  }
}