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veracodeVeracode Vulnerability DatabaseVERACODE:11353
HistoryJan 15, 2019 - 9:00 a.m.

Improper Certificate Common Name Verification Allows Spoofing SSL Servers

2019-01-1509:00:42
Veracode Vulnerability Database
sca.analysiscenter.veracode.com
12

0.004 Low

EPSS

Percentile

74.9%

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.

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