Vulnerability in Apache Httpasyncclient

CVE-2014-3577

org.apache.http.conn.ssl.AbstractVerifier in Apache HttpComponents HttpClient before 4.3.5 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.

EPSS: 0.091 (95.0th percentile) — read the EPSS interpretation.

Affected products

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2014-3577?
CVE-2014-3577 is a vulnerability in Apache Httpasyncclient. Published 2014-08-21.
Is CVE-2014-3577 known to be exploited?
11 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.