CVE-2023-49280: Data leak of password hash through xwiki change request
First published: Mon Dec 04 2023(Updated: )
### Impact Change request allows to edit any page by default, and the changes are then exported in an XML that anyone can download. So it's possible for an attacker to obtain password hash of users by performing edition of the user profiles and then downloading the XML that has been created. This is also true for any document that might contain password field and that a user can view. This vulnerability impacts all version of Change Request, but the impact depends on the rights that has been set on the wiki since it requires for the user to have the Change request right (allowed by default) and view rights on the page to target. Also the issue cannot be easily exploited in an automated way. ### Patches The patch consists in denying to users the right of editing pages that contains a password field with change request. It means that already existing change request for those pages won't be removed by the patch, administrators needs to take care of it. The patch is provided in Change Request 1.10, administrators should upgrade immediately. ### Workarounds It's possible to workaround the vulnerability by denying manually the Change request right on some spaces, such as XWiki space which will include any user profile by default. ### References * JIRA issue: https://jira.xwiki.org/browse/CRAPP-302 * Commit of the fix: https://github.com/xwiki-contrib/application-changerequest/commit/ff0f5368ea04f0e4aa7b33821c707dc68a8c5ca8 ### For more information If you have any questions or comments about this advisory: * Open an issue in [Jira XWiki.org](https://jira.xwiki.org/) * Email us at [Security Mailing List](mailto:security@xwiki.org) ### Attribution Thanks Michael Hamann for the report.
Credit: security-advisories@github.com security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| maven/org.xwiki.contrib.changerequest:application-changerequest-default | >=0.1<1.10 | 1.10 |
| XWiki Change Request | >=0.1<1.10 |
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Reference Links
- https://github.com/xwiki-contrib/application-changerequest/security/advisories/GHSA-2fr7-cc7p-p45q
- https://nvd.nist.gov/vuln/detail/CVE-2023-49280
- https://github.com/xwiki-contrib/application-changerequest/commit/ff0f5368ea04f0e4aa7b33821c707dc68a8c5ca8
- https://jira.xwiki.org/browse/CRAPP-302
- https://github.com/advisories/GHSA-2fr7-cc7p-p45q (Advisory)
Frequently Asked Questions
What is the vulnerability ID?
The vulnerability ID is CVE-2023-49280.
What is the title of the vulnerability?
The title of the vulnerability is 'Data leak of password hash through xwiki change request'.
What is the impact of this vulnerability?
The impact of this vulnerability is that an attacker can obtain password hash of users by editing user profiles and downloading the XML export of the changes.
Which software is affected by this vulnerability?
The software affected by this vulnerability is 'org.xwiki.contrib.changerequest:application-changerequest-default' (version 0.1 to 1.10).
What is the severity of CVE-2023-49280?
The severity of CVE-2023-49280 is high (7.7).
How can I fix this vulnerability?
To fix this vulnerability, apply the remedy version 1.10 of 'org.xwiki.contrib.changerequest:application-changerequest-default'.
Where can I find more information about this vulnerability?
You can find more information about this vulnerability at the following references: - [GitHub Advisory](https://github.com/xwiki-contrib/application-changerequest/security/advisories/GHSA-2fr7-cc7p-p45q) - [GitHub Commit](https://github.com/xwiki-contrib/application-changerequest/commit/ff0f5368ea04f0e4aa7b33821c707dc68a8c5ca8) - [XWiki JIRA](https://jira.xwiki.org/browse/CRAPP-302)
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