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Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CVE-2020-7758

High
7.5/10

Summary

This affects versions of package browserless-chrome before 1.40.2-chrome-stable. User input flowing from the workspace endpoint gets used to create a file path filePath and this is fetched and then sent back to a user. This can be escaped to fetch arbitrary files from a server.

  • LOW
  • NETWORK
  • NONE
  • UNCHANGED
  • NONE
  • NONE
  • HIGH
  • NONE

CWE-22 - Path Traversal

Path traversal (or directory traversal), is a vulnerability that allows malicious users to traverse the server's root directory, gaining access to arbitrary files and folders such as application code & data, back-end credentials, and sensitive operating system files. In the worst-case scenario, an attacker could potentially execute arbitrary files on the server, resulting in a denial of service attack. Such an exploit may severely impact the integrity, confidentiality, and availability of an application.

References

Advisory Timeline

  • Published