NetSight
medium4.3

CVE-2011-0633

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…

Impact

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.

Affected products

VendorProductAffected versions
Gisle AasLibwww-Perl
Versions 0.01, 0.02, 0.03, 0.04, 5.00, 5.01
Search.CpanLibwww-Perl
through 5.837
Version 5.40_01

Weakness classification

References