CVE-2014-3577

Severity: medium (CVSS 5.8 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 9.2% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2014-08-21 · updated 2026-06-17

Description

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.

Affected products

Apache Httpasyncclient: from 4.0 through 4.0.1
Apache Software Foundation Apache HttpClient: from 4.0 through 4.3.4

References

http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00032.html
http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00033.html
http://packetstormsecurity.com/files/127913/Apache-HttpComponents-Man-In-The-Middle.html
http://rhn.redhat.com/errata/RHSA-2014-1146.html
http://rhn.redhat.com/errata/RHSA-2014-1166.html
http://rhn.redhat.com/errata/RHSA-2014-1833.html
http://rhn.redhat.com/errata/RHSA-2014-1834.html
http://rhn.redhat.com/errata/RHSA-2014-1835.html
http://rhn.redhat.com/errata/RHSA-2014-1836.html
http://rhn.redhat.com/errata/RHSA-2014-1891.html
http://rhn.redhat.com/errata/RHSA-2014-1892.html
http://rhn.redhat.com/errata/RHSA-2015-0125.html

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