Mozilla Foundation Security Advisory 2010-70
SSL wildcard certificate matching IP addresses
- Announced
- October 19, 2010
- Reporter
- Richard Moore
- Impact
- Moderate
- Products
- Firefox, SeaMonkey, Thunderbird
- Fixed in
-
- Firefox 3.5.14
- Firefox 3.6.11
- SeaMonkey 2.0.9
- Thunderbird 3.0.9
- Thunderbird 3.1.5
Description
Security researcher Richard Moore reported that when an SSL certificate was created with a common name containing a wildcard followed by a partial IP address a valid SSL connection could be established with a server whose IP address matched the wildcard range by browsing directly to the IP address. It is extremely unlikely that such a certificate would be issued by a Certificate Authority.