CVE-2012-6153

http/conn/ssl/AbstractVerifier.java en Apache Commons HttpClient anterior a 4.2.3 no verifica debidamente que el nombre del servidor coincide con un nombre de dominio en el campo del asunto Common Name (CN) o subjectAltName del certificado X.509, lo que permite a atacantes man-in-the-middle falsificar servidores SSL a través de un certificado con un asunto que especifica un nombre común en un campo que no es el campo CN. NOTA: este problema existe debido a una solución incompleta para CVE-2012-5783.

It was found that the fix for CVE-2012-5783 was incomplete: the code added to check that the server host name matches the domain name in a subject's Common Name (CN) field in X.509 certificates was flawed. A man-in-the-middle attacker could use this flaw to spoof an SSL server using a specially crafted X.509 certificate.

Red Hat JBoss Enterprise Application Platform is a platform for Java applications, which integrates the JBoss Application Server with JBoss Hibernate and JBoss Seam. It was found that the fix for CVE-2012-5783 was incomplete: the code added to check that the server host name matches the domain name in a subject's Common Name field in X.509 certificates was flawed. A man-in-the-middle attacker could use this flaw to spoof an SSL server using a specially crafted X.509 certificate. It was discovered that the HttpClient incorrectly extracted host name from an X.509 certificate subject's Common Name field. A man-in-the-middle attacker could use this flaw to spoof an SSL server using a specially crafted X.509 certificate.