Thunderbird processes the X-Mozilla-External-Attachment-URL header to handle attachments which can be hosted externally. When an email is opened, Thunderbird accesses the specified URL to determine file size, and navigates to it when the user clicks the attachment. Because the URL is not validated or sanitized, it can reference internal resources like chrome:// or SMB share file:// links, potentially leading to hashed Windows credential leakage and opening the door to more serious security issues. This vulnerability affects Thunderbird < 137.0.2 and Thunderbird < 128.9.2.
A web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a Redirect. This simplifies phishing attacks.
Name | Vendor | Start Version | End Version |
---|---|---|---|
Red Hat Enterprise Linux 10 | RedHat | thunderbird-0:128.10.0-1.el10_0 | * |
Red Hat Enterprise Linux 8 | RedHat | thunderbird-0:128.9.2-1.el8_10 | * |
Red Hat Enterprise Linux 8.2 Advanced Update Support | RedHat | thunderbird-0:128.9.2-1.el8_2 | * |
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | RedHat | thunderbird-0:128.9.2-1.el8_4 | * |
Red Hat Enterprise Linux 8.4 Telecommunications Update Service | RedHat | thunderbird-0:128.9.2-1.el8_4 | * |
Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions | RedHat | thunderbird-0:128.9.2-1.el8_4 | * |
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | RedHat | thunderbird-0:128.9.2-1.el8_6 | * |
Red Hat Enterprise Linux 8.6 Telecommunications Update Service | RedHat | thunderbird-0:128.9.2-1.el8_6 | * |
Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions | RedHat | thunderbird-0:128.9.2-1.el8_6 | * |
Red Hat Enterprise Linux 8.8 Extended Update Support | RedHat | thunderbird-0:128.9.2-1.el8_8 | * |
Red Hat Enterprise Linux 9 | RedHat | thunderbird-0:128.9.2-1.el9_5 | * |
Red Hat Enterprise Linux 9 | RedHat | thunderbird-0:128.10.0-1.el9_6 | * |
Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions | RedHat | thunderbird-0:128.9.2-1.el9_0 | * |
Red Hat Enterprise Linux 9.2 Extended Update Support | RedHat | thunderbird-0:128.9.2-1.el9_2 | * |
Red Hat Enterprise Linux 9.4 Extended Update Support | RedHat | thunderbird-0:128.9.2-1.el9_4 | * |
Thunderbird | Ubuntu | upstream | * |