Detections
Analytics
CVE-2023-46218
medium
Description
This flaw allows a malicious HTTP server to set "super cookies" in curl that are then passed back to more origins than what is otherwise allowed or possible. This allows a site to set cookies that then would get sent to different and unrelated sites and domains. It could do this by exploiting a mixed case flaw in curl's function that verifies a given cookie domain against the Public Suffix List (PSL). For example a cookie could be set with `domain=co.UK` when the URL used a lower case hostname `curl.co.uk`, even though `co.uk` is listed as a PSL domain.
References
https://www.cisa.gov/news-events/ics-advisories/icsa-24-319-04
https://www.cisa.gov/news-events/ics-advisories/icsa-24-137-07