Drupal 6.x before 6.23 and 7.x before 7.11 does not verify that Attribute Exchange (AX) information is signed, which allows remote attackers to modify potentially sensitive AX information without detection via a man-in-the-middle (MITM) attack.
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
Link | Tags |
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https://drupal.org/node/1425084 | vendor advisory |
http://openid.net/2011/05/05/attribute-exchange-security-alert/ | |
http://www.debian.org/security/2013/dsa-2776 | vendor advisory |