CVE-2021-23632:Command Injection Vulnerability in git package allows Remote Code Execution

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All versions of the JavaScript 'git' package are vulnerable to Remote Code Execution (RCE) due to improper input sanitization in the Git.git method. This vulnerability allows attackers to execute arbitrary OS commands by injecting command separators into the input parameters, rather than limiting execution to only git commands as intended.

Overview

This vulnerability (CVE-2021-23632) is classified as CWE-78 (OS Command Injection). The issue exists in the Git.git method of the JavaScript 'git' package, which fails to properly sanitize user input before passing it to command execution functions. As a result, an attacker can inject OS command separators (such as semicolons) to execute arbitrary system commands with the same privileges as the application running the code. This poses a significant security risk, especially in applications that process user-controlled input and pass it to the Git.git method.

Remediation

To remediate this vulnerability:

  1. Update to a patched version of the 'git' package if available.
  2. If updating is not possible, implement input validation and sanitization before passing any user-controlled data to the Git.git method.
  3. Consider using alternative Git libraries that properly handle command injection risks.
  4. Apply the principle of least privilege to the application running the git package to minimize potential damage from successful exploits.
  5. Monitor for suspicious activity that may indicate exploitation attempts of this vulnerability.

References

  1. Snyk Advisory: https://snyk.io/vuln/SNYK-JS-GIT-1568518
  2. MITRE CWE-78: https://cwe.mitre.org/data/definitions/78.html
  3. CVE-2021-23632 in the National Vulnerability Database

Industry ExposureMost to least
This section illustrates the prevalence of a specific Common Vulnerabilities and Exposures (CVE) across various industries based on customer reports. The ranking displays industries from the most to least affected by this particular vulnerability, offering valuable insight into where this CVE has been most frequently observed. This information can help organizations within these sectors prioritize their security efforts, understand their relative risk exposure compared to their peers, and focus remediation strategies where they are most needed. By understanding the industry-specific impact, organizations can make more informed decisions regarding patching, resource allocation, and overall risk management related to this CVE.

  1. Management of Companies & Enterprises
    Management of Companies & Enterprises
  2. Manufacturing
    Manufacturing
  3. Accommodation & Food Services
    Accommodation & Food Services
  4. Administrative, Support, Waste Management & Remediation Services
    Administrative, Support, Waste Management & Remediation Services
  5. Agriculture, Forestry Fishing & Hunting
    Agriculture, Forestry Fishing & Hunting
  6. Arts, Entertainment & Recreation
    Arts, Entertainment & Recreation
  7. Construction
    Construction
  8. Educational Services
    Educational Services
  9. Finance and Insurance
    Finance and Insurance
  10. Health Care & Social Assistance
    Health Care & Social Assistance
  11. Information
    Information
  12. Mining
    Mining
  13. Other Services (except Public Administration)
    Other Services (except Public Administration)
  14. Professional, Scientific, & Technical Services
    Professional, Scientific, & Technical Services
  15. Public Administration
    Public Administration
  16. Real Estate Rental & Leasing
    Real Estate Rental & Leasing
  17. Retail Trade
    Retail Trade
  18. Transportation & Warehousing
    Transportation & Warehousing
  19. Utilities
    Utilities
  20. Wholesale Trade
    Wholesale Trade

Focus on What Matters

  1. See Everything.
  2. Identify True Risk.
  3. Proactively Mitigate Threats.

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