Vulnerability · Published Apr 10, 2024 · Assigned by GitHub_M
CVE-2024-31464XWiki Platform: Password hash might be leaked by diff once the xobject holding them is deleted
Medium 6.8
In plain English
A medium-severity information exposure in xwiki-platform from xwiki. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 32% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
XWiki Platform is a generic wiki platform. Starting in version 5.0-rc-1 and prior to versions 14.10.19, 15.5.4, and 15.9-rc-1, it is possible to access the hash of a password by using the diff feature of the history whenever the object storing the password is deleted. Using that vulnerability it's possible for an attacker to have access to the hash password of a user if they have rights to edit the users' page. With the default right scheme in XWiki this vulnerability is normally prevented on user profiles, except by users with Admin rights. Note that this vulnerability also impacts any extensions that might use passwords stored in xobjects: for those usecases it depends on the right of those pages. There is currently no way to be 100% sure that this vulnerability has been exploited, as an attacker with enough privilege could have deleted the revision where the xobject was deleted after rolling-back the deletion. But again, this operation requires high privileges on the target page (Admin right). A page with a user password xobject which have in its history a revision where the object has been deleted should be considered at risk and the password should be changed there. a diff, to ensure it's not coming from a password field. As another mitigation, admins should ensure that the user pages are properly protected: the edit right shouldn't be allowed for other users than Admin and owner of the profile (which is the default right). There is not much workaround possible for a privileged user other than upgrading XWiki.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Maven | org.xwiki.platform:xwiki-platform-oldcore | 14.10.19 | GHSA-v782-xr4w-3vqx |
| Maven | org.xwiki.platform:xwiki-platform-oldcore | 15.5.4 | GHSA-v782-xr4w-3vqx |
| Maven | org.xwiki.platform:xwiki-platform-oldcore | 15.9-rc-1 | GHSA-v782-xr4w-3vqx |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| xwiki | xwiki-platform | >= 5.0-rc-1, < 14.10.19>= 15.0-rc-1, < 15.5.4>= 15.6-rc-1, < 15.9-rc-1 |
Weakness: CWE-200 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N
References
- https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-v782-xr4w-3vqx x_refsource_CONFIRM
- https://github.com/xwiki/xwiki-platform/commit/9075668a4135cce114ef2a4b72eba3161a9e94c4 x_refsource_MISC
- https://github.com/xwiki/xwiki-platform/commit/955fb097e02a2a7153f527522ee9eef42447e5d7 x_refsource_MISC
- https://github.com/xwiki/xwiki-platform/commit/f1eaec1e512220fabd970d053c627e435a1652cf x_refsource_MISC
- https://jira.xwiki.org/browse/XWIKI-19948 x_refsource_MISC