CVE-2023-48240
XWiki Platform sends cookies to external images in rendered diff and is vulnerable to server side request forgery
Description
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/`.
INFO
Published Date :
Nov. 20, 2023, 6:15 p.m.
Last Modified :
Nov. 21, 2024, 8:31 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | CRITICAL | [email protected] | ||||
| CVSS 3.1 | HIGH | [email protected] |
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2023-48240.
| URL | Resource |
|---|---|
| https://github.com/xwiki/xwiki-platform/commit/bff0203e739b6e3eb90af5736f04278c73c2a8bb | Patch |
| https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-7rfg-6273-f5wp | Vendor Advisory |
| https://jira.xwiki.org/browse/XWIKI-20818 | Issue Tracking Patch Vendor Advisory |
| https://github.com/xwiki/xwiki-platform/commit/bff0203e739b6e3eb90af5736f04278c73c2a8bb | Patch |
| https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-7rfg-6273-f5wp | Vendor Advisory |
| https://jira.xwiki.org/browse/XWIKI-20818 | Issue Tracking Patch Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-48240 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2023-48240
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-48240 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-48240 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://github.com/xwiki/xwiki-platform/commit/bff0203e739b6e3eb90af5736f04278c73c2a8bb Added Reference https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-7rfg-6273-f5wp Added Reference https://jira.xwiki.org/browse/XWIKI-20818 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Nov. 29, 2023
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Changed Reference Type https://github.com/xwiki/xwiki-platform/commit/bff0203e739b6e3eb90af5736f04278c73c2a8bb No Types Assigned https://github.com/xwiki/xwiki-platform/commit/bff0203e739b6e3eb90af5736f04278c73c2a8bb Patch Changed Reference Type https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-7rfg-6273-f5wp No Types Assigned https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-7rfg-6273-f5wp Vendor Advisory Changed Reference Type https://jira.xwiki.org/browse/XWIKI-20818 No Types Assigned https://jira.xwiki.org/browse/XWIKI-20818 Issue Tracking, Patch, Vendor Advisory Added CWE NIST CWE-918 Added CPE Configuration OR *cpe:2.3:a:xwiki:xwiki:*:*:*:*:*:*:*:* versions from (including) 11.10.1 up to (excluding) 14.10.15 *cpe:2.3:a:xwiki:xwiki:*:*:*:*:*:*:*:* versions from (including) 15.0 up to (excluding) 15.5.1 *cpe:2.3:a:xwiki:xwiki:15.6:rc1:*:*:*:*:*:* -
CVE Received by [email protected]
Nov. 20, 2023
Action Type Old Value New Value Added Description 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/`. Added Reference GitHub, Inc. https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-7rfg-6273-f5wp [No types assigned] Added Reference GitHub, Inc. https://github.com/xwiki/xwiki-platform/commit/bff0203e739b6e3eb90af5736f04278c73c2a8bb [No types assigned] Added Reference GitHub, Inc. https://jira.xwiki.org/browse/XWIKI-20818 [No types assigned] Added CWE GitHub, Inc. CWE-281 Added CWE GitHub, Inc. CWE-201 Added CWE GitHub, Inc. CWE-918 Added CVSS V3.1 GitHub, Inc. AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Vulnerability Scoring Details
Base CVSS Score: 9
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
1.58 }} -5.52%
score
0.80472
percentile