CVE-2023-37909: Privilege escalation (PR)/remote code execution from account through Menu.UIExtensionSheet
First published: Wed Oct 25 2023(Updated: )
### Impact Any user who can edit their own user profile can execute arbitrary script macros including Groovy and Python macros that allow remote code execution including unrestricted read and write access to all wiki contents. This can be reproduced with the following steps: 1. As an advanced user, use the object editor to add an object of type `UIExtensionClass` to your user profile. Set the value "Extension Point ID" to `{{/html}}{{async async=false cache=false}}{{groovy}}println("Hello from Groovy!"){{/groovy}}{{/async}}` 2. Open `<xwiki-host>/xwiki/bin/edit/XWiki/<username>?sheet=Menu.UIExtensionSheet` where `<xwiki-host>` is the URL of your XWiki installation and `<username>` is your user name. If the text `Hello from Groovy!" selected="selected">` is displayed in the output, the attack succeeded. ### Patches This has been patched in XWiki 14.10.8 and 15.3 RC1 by adding proper escaping. ### Workarounds The [patch](https://github.com/xwiki/xwiki-platform/commit/9e8f080094333dec63a8583229a3799208d773be#diff-47a5652d0c8e4601dac12bd9ab34b8bd688cb22a1b758ce7b774043658834662) can be manually applied to the document `Menu.UIExtensionSheet`, only three lines need to be changed. ### References * https://jira.xwiki.org/browse/XWIKI-20746 * https://github.com/xwiki/xwiki-platform/commit/9e8f080094333dec63a8583229a3799208d773be
Credit: security-advisories@github.com security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Xwiki Xwiki | >=5.1<14.10.8 | |
| maven/org.xwiki.platform:xwiki-platform-menu-ui | >=15.0-rc-1<15.3-rc-1 | 15.3-rc-1 |
| maven/org.xwiki.platform:xwiki-platform-menu-ui | >=5.1-rc-1<14.10.8 | 14.10.8 |
| maven/org.xwiki.platform:xwiki-platform-menu | >=5.1-rc-1<14.10.8 | 14.10.8 |
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Reference Links
- https://github.com/xwiki/xwiki-platform/commit/9e8f080094333dec63a8583229a3799208d773be
- https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-v2rr-xw95-wcjx
- https://jira.xwiki.org/browse/XWIKI-20746
- https://nvd.nist.gov/vuln/detail/CVE-2023-37909
- https://github.com/advisories/GHSA-v2rr-xw95-wcjx (Advisory)
Frequently Asked Questions
What is the impact of CVE-2023-37909?
Any user who can edit their own user profile can execute arbitrary script macros including Groovy and Python macros that allow remote code execution including unrestricted read and write access to all wiki contents.
How can CVE-2023-37909 be exploited?
To exploit this vulnerability, an advanced user needs to perform specific steps.
Which versions of org.xwiki.platform:xwiki-platform-menu-ui are affected by CVE-2023-37909?
The affected versions are between 5.1-rc-1 and 14.10.8 (inclusive) and 15.0-rc-1 and 15.3-rc-1 (inclusive).
How severe is CVE-2023-37909?
The severity of this vulnerability is critical (score of 10).
Where can I find more information about CVE-2023-37909?
You can find more information about CVE-2023-37909 in the following references: [GitHub Security Advisory](https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-v2rr-xw95-wcjx), [GitHub Commit](https://github.com/xwiki/xwiki-platform/commit/9e8f080094333dec63a8583229a3799208d773be), [XWiki JIRA](https://jira.xwiki.org/browse/XWIKI-20746).
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- collector/github-advisory-latest
- alias/GHSA-v2rr-xw95-wcjx
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