cve/2023/CVE-2023-38546.md

CVE-2023-38546

Description

This flaw allows an attacker to insert cookies at will into a running programusing libcurl, if the specific series of conditions are met.libcurl performs transfers. In its API, an application creates "easy handles"that are the individual handles for single transfers.libcurl provides a function call that duplicates en easy handle calledcurl_easy_duphandle.If a transfer has cookies enabled when the handle is duplicated, thecookie-enable state is also cloned - but without cloning the actualcookies. If the source handle did not read any cookies from a specific file ondisk, the cloned version of the handle would instead store the file name asnone (using the four ASCII letters, no quotes).Subsequent use of the cloned handle that does not explicitly set a source toload cookies from would then inadvertently load cookies from a file namednone - if such a file exists and is readable in the current directory of theprogram using libcurl. And if using the correct file format of course.

POC

Reference

No PoCs from references.

Github

• https://github.com/alex-grandson/docker-python-example
• https://github.com/fokypoky/places-list
• https://github.com/industrial-edge/iih-essentials-development-kit
• https://github.com/malinkamedok/devops_sandbox
• https://github.com/testing-felickz/docker-scout-demo