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.
History

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cve-icon MITRE Information

Status: PUBLISHED

Assigner: hackerone

Published: 2023-12-07T01:10:34.846Z

Updated: 2023-12-07T01:10:34.846Z

Reserved: 2023-10-19T01:00:12.854Z


Link: CVE-2023-46218

JSON object: View

cve-icon NVD Information

Status : Modified

Published: 2023-12-07T01:15:07.160

Modified: 2024-01-25T14:15:26.117


Link: CVE-2023-46218

JSON object: View

cve-icon Redhat Information

No data.