Addressed a Cross-Site Request Forgery (CSRF) vulnerability by disabling GraphQL GET methods via localconfig. A new local config attribute, zimbra_gql_enable_dangerous_ deprecated_get_method_will_be_removed, has been introduced to control these methods. The default value is FALSE (getting displayed as null), and customers are recommended not to set it to TRUE.
Description
Zimbra GraphQL Cross-Site Request Forgery Information Disclosure Vulnerability. This vulnerability allows remote attackers to disclose sensitive information on affected installations of Zimbra. User interaction is required to exploit this vulnerability in that the target must open a malicious email message.
The specific flaw exists within the implementation of the graphql endpoint. The issue results from the lack of proper protections against cross-site request forgery (CSRF) attacks. An attacker can leverage this vulnerability to disclose information in the context of the target email account. Was ZDI-CAN-23939.
Read more here: Source link