PyWBEM 0.7 and earlier uses a separate connection to validate X.509 certificates, which allows man-in-the-middle attackers to spoof a peer via an arbitrary certificate.

References

• https://nvd.nist.gov/vuln/detail/CVE-2013-6418
• https://bugzilla.redhat.com/show_bug.cgi?id=1039801
• https://www.suse.com/support/update/announcement/2014/suse-su-20140580-1.html
• http://seclists.org/oss-sec/2013/q4/531
• http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html
• pywbem/pywbem@f759937
• https://web.archive.org/web/20161110005052/http://secunia.com/advisories/58327
• https://web.archive.org/web/20200228040356/http://www.securityfocus.com/bid/64544
• http://sourceforge.net/p/pywbem/code/627
• http://sourceforge.net/p/pywbem/mailman/message/31757312