CVE-2024-31987 – org.xwiki.platform:xwiki-platform-oldcore

Package

Manager: maven
Name: org.xwiki.platform:xwiki-platform-oldcore
Vulnerable Version: >=6.4-milestone-1 <14.10.19 || >=15.0-rc-1 <15.5.4 || >=15.6-rc-1 <15.10-rc-1

Severity

Level: Critical

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

EPSS: 0.33683 pctl0.96814

Details

XWiki Platform remote code execution from account via custom skins support ### Impact Any user who can edit any page like their profile can create a custom skin with a template override that is executed with programming right, thus allowing remote code execution. To reproduce, as a user without edit, script or admin right, add an object of class `XWiki.XWikiSkins` to your profile. Name it whatever you want and set the Base Skin to `flamingo`. Add an object of class `XWikiSkinFileOverrideClass` and set the path to `macros.vm` and the content to: ``` #macro(mediumUserAvatar $username) #resizedUserAvatar($username 50) $services.logging.getLogger('Skin').error("I got programming: $services.security.authorization.hasAccess('programming')") #end ``` Back to your profile, click `Test this skin`. Force a refresh, just in case. If the error "Skin - I got programming: true" gets logged, the installation is vulnerable. ### Patches This has been patched in XWiki 14.10.19, 15.5.4 and 15.10RC1. ### Workarounds We're not aware of any workaround except upgrading. ### References * https://jira.xwiki.org/browse/XWIKI-21478 * https://github.com/xwiki/xwiki-platform/commit/3d4dbb41f52d1a6e39835cfb1695ca6668605a39 (>= 15.8 RC1) * https://github.com/xwiki/xwiki-platform/commit/da177c3c972e797d92c1a31e278f946012c41b56 (< 15.8 RC1)

Metadata

Created: 2024-04-10T17:14:47Z
Modified: 2024-04-10T22:01:40Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/04/GHSA-cv55-v6rw-7r5v/GHSA-cv55-v6rw-7r5v.json
CWE IDs: ["CWE-862"]
Alternative ID: GHSA-cv55-v6rw-7r5v
Finding: F039
Auto approve: 1