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GHSA-hfrg-4jwr-jfpj
No affected components available
Impact
ZITADEL uses Go templates to render the login UI.
Due to a improper use of the text/template instead of the html/template package, the Login UI did not sanitize input parameters. An attacker could create a malicious link, where he injected code which would be rendered as part of the login screen.
While it was possible to inject HTML including javascript, the execution of such scripts would be prevented by the Content Security Policy.
Patches
2.x versions are fixed on >= 2.47.3 2.46.x versions are fixed on >= 2.46.1 2.45.x versions are fixed on >= 2.45.1 2.44.x versions are fixed on >= 2.44.3 2.43.x versions are fixed on >= 2.43.9 2.42.x versions are fixed on >= 2.42.15 2.41.x versions are fixed on >= 2.41.15
ZITADEL recommends upgrading to the latest versions available in due course.
Workarounds
There is no workaround since a patch is already available.
Questions
If you have any questions or comments about this advisory, please email us at security@zitadel.com
Credits
Thanks to Daniel Philipp - owt and Thomas Wickham - synopsis for reporting this.
The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. The attacker needs the user to perform some action, like clicking a link. The impact is confined to the system where the vulnerability exists. There is a high impact on the confidentiality of the information. There is a high impact on the integrity of the data.
Exploitation activity has been observed. Apply available patches or mitigations urgently.
The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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