Indico up to 3.3.3 Next cross site scripting

Summaryinfo

A vulnerability, which was classified as problematic, was found in Indico up to 3.3.3. Impacted is an unknown function. The manipulation of the argument Next results in cross site scripting. This vulnerability is known as CVE-2024-45399. It is possible to launch the attack remotely. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Indico up to 3.3.3. Affected is some unknown functionality. The manipulation of the argument next with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. CVE summarizes:

Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. In Indico prior to version 3.3.4, corresponding to Flask-Multipass prior to version 0.5.5, there is a Cross-Site-Scripting vulnerability during account creation when redirecting to the `next` URL. Exploitation requires initiating the account creation process with a maliciously crafted link, and then finalizing the signup process. Because of this, it can only target newly created (and thus unprivileged) Indico users. Indico 3.3.4 upgrades the dependency on Flask-Multipass to version 0.5.5, which fixes the issue. Those who build the Indico package themselves and cannot upgrade can update the `flask-multipass` dependency to `>=0.5.5` which fixes the vulnerability. Otherwise one could configure one's web server to disallow requests containing a query string with a `next` parameter that starts with `javascript:`.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2024-45399 since 08/28/2024. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.007.

Upgrading to version 3.3.4 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 0bdcf656d469e5f675cb56fd644d82fea3a97c2a is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Name

• Indico

Version

• 3.3.0
• 3.3.1
• 3.3.2
• 3.3.3

License

• open-source

Website

• Product: https://github.com/indico/indico/

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