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-25-162-05
https://www.cisa.gov/news-events/ics-advisories/icsa-24-319-04
https://www.cisa.gov/news-events/ics-advisories/icsa-24-137-07
https://www.debian.org/security/2023/dsa-5587
https://security.netapp.com/advisory/ntap-20240125-0007/
https://lists.debian.org/debian-lts-announce/2023/12/msg00015.html
https://hackerone.com/reports/2212193
https://curl.se/docs/CVE-2023-46218.html
https://cert-portal.siemens.com/productcert/html/ssa-331112.html
https://cert-portal.siemens.com/productcert/html/ssa-202008.html
https://cert-portal.siemens.com/productcert/html/ssa-093430.html
https://cert-portal.siemens.com/productcert/html/ssa-082556.html