CVE-2011-0633 Information

Description

The Net::HTTPS module in libwww-perl (LWP) before 6.00 as used in WWW::Mechanize LWP::UserAgent and other products when running in environments that do not set the If-SSL-Cert-Subject header does not enable full validation of SSL certificates by default which allows remote attackers to spoof servers via man-in-the-middle (MITM) attacks involving hostnames that are not properly validated. NOTE: it could be argued that this is a design limitation of the Net::HTTPS API and separate implementations should be independently assigned CVE identifiers for not working around this limitation. However because this API was modified within LWP a single CVE identifier has been assigned.

Reference

http://cpansearch.perl.org/src/GAAS/libwww-perl-6.02/Changes http://vttynotes.blogspot.com/2010/12/man-in-middle-fun-with-perl-lwp.html http://vttynotes.blogspot.com/2011/03/quick-note-on-lwp-and-perl-security-cve.html