CVE-2022-27779

Summary

libcurl wrongly allows cookies to be set for Top Level Domains (TLDs) if thehost name is provided with a trailing dot.curl can be told to receive and send cookies. curl's "cookie engine" can bebuilt with or without Public Suffix Listawareness. If PSL support not provided, a more rudimentary check exists to atleast prevent cookies from being set on TLDs. This check was broken if thehost name in the URL uses a trailing dot.This can allow arbitrary sites to set cookies that then would get sent to adifferent and unrelated site or domain.

Affected Software

VendorProductVersion RangeStatus
n/ahttps://github.com/curl/curlFixed in 7.83.1affected

Weaknesses

  • CWE-201: Information Exposure Through Sent Data (CWE-201)

ADP Enrichment

CVE Program Container

Additional References

References