CVE-2020-7777: Vulnerability Analysis & Exploit Details

Status: Modified - Last modified: 21-11-2024 Published: 23-11-2020

CVE-2020-7777
Vulnerability Scoring

7.2
/10

Attack Complexity Details

  • Attack Complexity: Low Impact
  • Attack Vector: NETWORK
  • Privileges Required: HIGH IMPACT
  • Scope: UNCHANGED
  • User Interaction: NONE

CIA Impact Definition

  • Confidentiality: HIGH IMPACT
  • Integrity: HIGH IMPACT
  • Availability: HIGH IMPACT

CVE-2020-7777 Vulnerability Summary

This affects all versions of package jsen. If an attacker can control the schema file, it could run arbitrary JavaScript code on the victim machine. In the module description and README file there is no mention about the risks of untrusted schema files, so I assume that this is applicable. In particular the required field of the schema is not properly sanitized. The resulting string that is build based on the schema definition is then passed to a Function.apply();, leading to an Arbitrary Code Execution.

Access Complexity Graph for CVE-2020-7777

Impact Analysis for CVE-2020-7777

CVE-2020-7777: Detailed Information and External References

EPSS

0.00196

EPSS %

0.57767

References

0.00196

CWE

NVD-CWE-noinfo

Vulnerable Configurations

  • cpe:2.3:a:jsen_project:jsen:*:*:*:*:*:node.js:*:*
    cpe:2.3:a:jsen_project:jsen:*:*:*:*:*:node.js:*:*

CVSS3 Source

report@snyk.io

CVSS3 Type

Secondary

CVSS3 Vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Protect Your Infrastructure: Combat Critical CVE Threats

Stay updated with real-time CVE vulnerabilities and take action to secure your systems. Enhance your cybersecurity posture with the latest threat intelligence and mitigation techniques. Develop the skills necessary to defend against CVEs and secure critical infrastructures. Join the top cybersecurity professionals safeguarding today's infrastructures.

Recently Published CVEs