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.
Remediation
References
http://seclists.org/fulldisclosure/2014/Aug/48
http://packetstormsecurity.com/files/127913/Apache-HttpComponents-Man-In-The-Middle.html
http://secunia.com/advisories/60713
http://secunia.com/advisories/60589
https://access.redhat.com/solutions/1165533
http://rhn.redhat.com/errata/RHSA-2014-1146.html
http://rhn.redhat.com/errata/RHSA-2014-1166.html
http://rhn.redhat.com/errata/RHSA-2014-1892.html
http://rhn.redhat.com/errata/RHSA-2014-1891.html
http://rhn.redhat.com/errata/RHSA-2014-1836.html
http://rhn.redhat.com/errata/RHSA-2014-1835.html
http://rhn.redhat.com/errata/RHSA-2014-1834.html
http://rhn.redhat.com/errata/RHSA-2014-1833.html
http://rhn.redhat.com/errata/RHSA-2015-0158.html
http://rhn.redhat.com/errata/RHSA-2015-0125.html
http://rhn.redhat.com/errata/RHSA-2015-0675.html
http://rhn.redhat.com/errata/RHSA-2015-0720.html
http://rhn.redhat.com/errata/RHSA-2015-0765.html
http://rhn.redhat.com/errata/RHSA-2015-0851.html
http://rhn.redhat.com/errata/RHSA-2015-0850.html
http://rhn.redhat.com/errata/RHSA-2015-1177.html
http://rhn.redhat.com/errata/RHSA-2015-1176.html
http://www.ubuntu.com/usn/USN-2769-1
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05103564
http://www.securityfocus.com/bid/69258
http://www.securitytracker.com/id/1030812
http://www.osvdb.org/110143
http://secunia.com/advisories/60466
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05363782
https://exchange.xforce.ibmcloud.com/vulnerabilities/95327
http://rhn.redhat.com/errata/RHSA-2016-1931.html
http://rhn.redhat.com/errata/RHSA-2016-1773.html
http://rhn.redhat.com/errata/RHSA-2015-1888.html
http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html
http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00032.html
http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00033.html
http://www.openwall.com/lists/oss-security/2021/10/06/1
https://security.netapp.com/advisory/ntap-20231027-0003/
https://lists.apache.org/thread.html/b0656d359c7d40ec9f39c8cc61bca66802ef9a2a12ee199f5b0c1442%40%3Cdev.drill.apache.org%3E
https://lists.apache.org/thread.html/519eb0fd45642dcecd9ff74cb3e71c20a4753f7d82e2f07864b5108f%40%3Cdev.drill.apache.org%3E
https://lists.apache.org/thread.html/f9bc3e55f4e28d1dcd1a69aae6d53e609a758e34d2869b4d798e13cc%40%3Cissues.drill.apache.org%3E
https://lists.apache.org/thread.html/rc774278135816e7afc943dc9fc78eb0764f2c84a2b96470a0187315c%40%3Ccommits.cxf.apache.org%3E
https://lists.apache.org/thread.html/r36e44ffc1a9b365327df62cdfaabe85b9a5637de102cea07d79b2dbf%40%3Ccommits.cxf.apache.org%3E
https://lists.apache.org/thread.html/rff42cfa5e7d75b7c1af0e37589140a8f1999e578a75738740b244bd4%40%3Ccommits.cxf.apache.org%3E
https://lists.apache.org/thread.html/rd49aabd984ed540c8ff7916d4d79405f3fa311d2fdbcf9ed307839a6%40%3Ccommits.cxf.apache.org%3E
https://lists.apache.org/thread.html/rec7160382badd3ef4ad017a22f64a266c7188b9ba71394f0d321e2d4%40%3Ccommits.cxf.apache.org%3E
https://lists.apache.org/thread.html/rfb87e0bf3995e7d560afeed750fac9329ff5f1ad49da365129b7f89e%40%3Ccommits.cxf.apache.org%3E
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