CVE-2024-37899: Disabling a user account changes its author, allowing RCE from user account in XWiki
Impact When an admin disables a user account, the user's profile is executed with the admin's rights. This allows a user to place malicious code in the user profile before getting an admin to disable the user account.
To reproduce, as a user without script nor programming rights, edit the about section of your user profile and add {{groovy}}services.logging.getLogger("attacker").error("Hello from Groovy!"){{/groovy}}. As an admin, go to the user profile and click the "Disable this account" button. Then, reload the page. If the logs show attacker - Hello from Groovy! then the instance is vulnerable.
Patches This has been patched in XWiki 14.10.21, 15.5.5, 15.10.6 and 16.0.0.
Workarounds We're not aware of any workaround except upgrading.
References https://jira.xwiki.org/browse/XWIKI-21611 https://github.com/xwiki/xwiki-platform/commit/f89c8f47fad6e5cc7e68c69a7e0acde07f5eed5a
Other sources
XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. When an admin disables a user account, the user's profile is executed with the admin's rights. This allows a user to place malicious code in the user profile before getting an admin to disable the user account. To reproduce, as a user without script nor programming rights, edit the about section of your user profile and add {{groovy}}services.logging.getLogger("attacker").error("Hello from Groovy!"){{/groovy}}. As an admin, go to the user profile and click the "Disable this account" button. Then, reload the page. If the logs show attacker - Hello from Groovy! then the instance is vulnerable. This has been patched in XWiki 14.10.21, 15.5.5, 15.10.6 and 16.0.0. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Workarounds We're not aware of any workaround except upgrading.
References https://jira.xwiki.org/browse/XWIKI-21611 https://github.com/xwiki/xwiki-platform/commit/f89c8f47fad6e5cc7e68c69a7e0acde07f5eed5a
— MITRE
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2024-37899?
CVE-2024-37899 is classified as a high severity vulnerability due to its ability to execute malicious code with admin rights.
How do I fix CVE-2024-37899?
To fix CVE-2024-37899, update to the patched versions 16.0.0, 15.10.6, 15.5.5, or 14.10.21 of org.xwiki.platform:xwiki-platform-oldcore.
What impact does CVE-2024-37899 have on user accounts?
CVE-2024-37899 allows a user to execute code with an admin's privileges upon account disablement, potentially resulting in unauthorized actions.
Who is affected by CVE-2024-37899?
CVE-2024-37899 affects installations of org.xwiki.platform:xwiki-platform-oldcore prior to the remediation versions.
Can I exploit CVE-2024-37899 without admin rights?
Yes, an attacker can exploit CVE-2024-37899 by embedding malicious code in their user profile before an admin disables their account.