Headline
CVE-2023-50719: Solr search discloses password hashes of all users
XWiki Platform is a generic wiki platform. Starting in 7.2-milestone-2 and prior to versions 14.10.15, 15.5.2, and 15.7-rc-1, the Solr-based search in XWiki discloses the password hashes of all users to anyone with view right on the respective user profiles. By default, all user profiles are public. This vulnerability also affects any configurations used by extensions that contain passwords like API keys that are viewable for the attacker. Normally, such passwords aren’t accessible but this vulnerability would disclose them as plain text. This has been patched in XWiki 14.10.15, 15.5.2 and 15.7RC1. There are no known workarounds for this vulnerability.
Impact
The Solr-based search in XWiki discloses the password hashes of all users to anyone with view right on the respective user profiles. By default, all user profiles are public. To reproduce, it is sufficient to search for propertyvalue:?* AND reference:*.password and then deselect the “Document” property under “Result type” in the “Refine your search” widget at the right of the search results. If this displays any passwords or password hashes, the installation is vulnerable.
By default, passwords in XWiki are salted and hashed with SHA-512. On XWiki versions affected by CVE-2022-41933, passwords are stored in plain text if they have been set using the password reset feature. This might affect XWiki installations that are using an external authentication mechanism such that passwords aren’t stored in the wiki.
This vulnerability also affects any configurations used by extensions that contain passwords like API keys that are viewable for the attacker. Normally, such passwords aren’t accessible but this vulnerability would disclose them as plain text.
Patches
This has been patched in XWiki 14.10.15, 15.5.2 and 15.7RC1. This vulnerability has been patched as part of patching GHSA-2grh-gr37-2283, the part of the fix that changes the indexing of single properties to use the same code as the main document for getting the property’s value fixes this vulnerability.
Workarounds
We’re not aware of any workarounds apart from upgrading to a fixed version.
References
- 3e5272f
- https://jira.xwiki.org/browse/XWIKI-21208
Related news
### Impact The Solr-based search in XWiki discloses the password hashes of all users to anyone with view right on the respective user profiles. By default, all user profiles are public. To reproduce, it is sufficient to search for `propertyvalue:?* AND reference:*.password` and then deselect the "Document" property under "Result type" in the "Refine your search" widget at the right of the search results. If this displays any passwords or password hashes, the installation is vulnerable. By default, passwords in XWiki are salted and hashed with SHA-512. On XWiki versions affected by [CVE-2022-41933](https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-q2hm-2h45-v5g3), passwords are stored in plain text if they have been set using the password reset feature. This might affect XWiki installations that are using an external authentication mechanism such that passwords aren't stored in the wiki. This vulnerability also affects any configurations used by extensions that contain ...
XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. When the `reset a forgotten password` feature of XWiki was used, the password was then stored in plain text in database. This only concerns XWiki 13.1RC1 and newer versions. Note that it only concerns the reset password feature available from the "Forgot your password" link in the login view: the features allowing a user to change their password, or for an admin to change a user password are not impacted. This vulnerability is particularly dangerous in combination with other vulnerabilities allowing to perform data leak of personal data from users, such as GHSA-599v-w48h-rjrm. Note that this vulnerability only concerns the users of the main wiki: in case of farms, the users registered on subwiki are not impacted thanks to a bug we discovered when investigating this. The problem has been patched in version 14.6RC1, 14.4.3 and 13.10.8. The patch involves a migration of the impacted us...
### Impact We discovered that when the reset a forgotten password feature of XWiki was used, the password was then stored in plain text in database. This only concerns XWiki 13.1RC1 and next versions. Note that it only concerns the reset password feature available from the "Forgot your password" link in the login view: the features allowing a user to change their password, or for an admin to change a user password are not impacted. This vulnerability is particularly dangerous in combination with other vulnerabilities allowing to perform data leak of personal data from users, such as https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-599v-w48h-rjrm. Note that this vulnerability only concerns the users of the main wiki: in case of farms, the users registered on subwiki are not impacted thanks to a bug we discovered when investigating this. ### Patches The problem has been patched in version 14.6RC1, 14.4.3 and 13.10.8. The patch involves a migration of the impacted u...