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.
CVSS Details
- CVSS 3.1 Base Score: 5.9
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade libwww-perl | Jul 30, 2024 | May 13, 2011 |
| Gentoo Linux | — | Upgrade dev-perl/libwww-perl. | Oct 30, 2017 | May 13, 2011 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Mar 8, 2011 |
| Suse | — | Upgrade perl-libwww-perl | Dec 12, 2013 | Jun 28, 2013 |
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