Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVE-2021-23357
Summary
All versions of package github.com/tyktechnologies/tyk/gateway are vulnerable to Directory Traversal via the "handleAddOrUpdateApi" function. This function is able to delete arbitrary JSON files on the disk where Tyk is running via the management API. The APIID is provided by the user and this value is then used to create a file on disk. If there is a file found with the same name then it will be deleted and then re-created with the contents of the API creation request.
- LOW
- LOCAL
- LOW
- UNCHANGED
- NONE
- LOW
- LOW
- LOW
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.
Advisory Timeline
- Published
