CVE-2023-48240

Source
https://nvd.nist.gov/vuln/detail/CVE-2023-48240
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-48240.json
Aliases
Published
2023-11-20T18:15:07Z
Modified
2023-11-29T22:16:33.259222Z
Details

XWiki Platform is a generic wiki platform. The rendered diff in XWiki embeds images to be able to compare the contents and not display a difference for an actually unchanged image. For this, XWiki requests all embedded images on the server side. These requests are also sent for images from other domains and include all cookies that were sent in the original request to ensure that images with restricted view right can be compared. Starting in version 11.10.1 and prior to versions 14.10.15, 15.5.1, and 15.6, this allows an attacker to steal login and session cookies that allow impersonating the current user who views the diff. The attack can be triggered with an image that references the rendered diff, thus making it easy to trigger. Apart from stealing login cookies, this also allows server-side request forgery (the result of any successful request is returned in the image's source) and viewing protected content as once a resource is cached, it is returned for all users. As only successful requests are cached, the cache will be filled by the first user who is allowed to access the resource. This has been patched in XWiki 14.10.15, 15.5.1 and 15.6. The rendered diff now only downloads images from trusted domains. Further, cookies are only sent when the image's domain is the same the requested domain. The cache has been changed to be specific for each user. As a workaround, the image embedding feature can be disabled by deleting xwiki-platform-diff-xml-<version>.jar in WEB-INF/lib/.

References

Affected packages

Git / github.com/xwiki/xwiki-platform

Affected ranges

Type
GIT
Repo
https://github.com/xwiki/xwiki-platform
Events
Introduced
0The exact introduced commit is unknown
Fixed

Affected versions

xwiki-application-calendar-1.*

xwiki-application-calendar-1.0

xwiki-platform-7.*

xwiki-platform-7.3-milestone-2
xwiki-platform-7.4-milestone-1
xwiki-platform-7.4-milestone-2

xwiki-platform-8.*

xwiki-platform-8.0-milestone-1
xwiki-platform-8.0-milestone-2
xwiki-platform-8.1-milestone-1
xwiki-platform-8.1-milestone-2
xwiki-platform-8.2-milestone-1
xwiki-platform-8.2-milestone-2
xwiki-platform-8.3-milestone-1

xwiki-platform-9.*

xwiki-platform-9.9-rc-2

xwiki-plugin-tag-1.*

xwiki-plugin-tag-1.1