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Improper Validation of Certificate with Host Mismatch

CVE-2014-3577

Medium
5.8/10

Summary

org.apache.http.conn.ssl.AbstractVerifier in Apache HttpComponents HttpClient before 4.4-beta1 and HttpAsyncClient before 4.0.2 does not properly verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via a "CN=" string in a field in the distinguished name (DN) of a certificate, as demonstrated by the "foo,CN=www.apache.org" string in the O field.

  • MEDIUM
  • NETWORK
  • NONE
  • PARTIAL
  • PARTIAL
  • NONE

CWE-297 - Improper Validation of Certificate with Host Mismatch

The software communicates with a host that provides a certificate, but the software does not properly ensure that the certificate is actually associated with that host.

References

Advisory Timeline

  • Published