Security
Headlines
HeadlinesLatestCVEs

Headline

GHSA-qj86-p74r-7wp5: Remote code execution/programming rights with configuration section from any user account

Impact

Anyone who can edit an arbitrary wiki page in an XWiki installation can gain programming right through several cases of missing escaping in the code for displaying sections in the administration interface. This impacts the confidentiality, integrity and availability of the whole XWiki installation. Normally, all users are allowed to edit their own user profile so this should be exploitable by all users of the XWiki instance.

The easiest way to reproduce this is to edit any document with the object editor and add an object of type XWiki.ConfigurableClass (“Custom configurable sections”). Set “Display in section” and “Display in Category” to "other", set scope to “Wiki and all spaces” and “Heading” to {{async}}{{groovy}}services.logging.getLogger("attacker").error("Attack from Heading succeeded!"); println("Hello from Groovy!"){{/groovy}}{{/async}}. Click "Save". Open <xwiki-host>/xwiki/bin/view/Main/?sheet=XWiki.AdminSheet&viewer=content&editor=globaladmin&section=other where <xwiki-host> is the URL of your XWiki installation. If this displays just “Hello from Groovy!” in a heading and generates an error message with content “Attack from Heading succeeded!” in XWiki’s log, the attack succeeded. Similar attacks are also possible by creating this kind of object on a document with a specially crafted name, see the referenced Jira issues for more reproduction steps.

Patches

This has been fixed in XWiki 14.10.15, 15.5.2 and 15.7RC1

Workarounds

It is possible to manually apply the fixes for the vulnerability by editing two pages in the wiki. This patch needs to be applied to the page XWiki.ConfigurableClassMacros. Further, the following patches need to be applied to the page XWiki.ConfigurableClass:

  • https://github.com/xwiki/xwiki-platform/commit/749f6aee1bfbcf191c3734ea0aa9eba3aa63240e#diff-bf419a99140f3c12fd78ea30f855b63cfb74c1c976ff4436898266d9b37ad3ce
  • https://github.com/xwiki/xwiki-platform/commit/1157c1ecea395aac7f64cd8a6f484b1225416dc7#diff-bf419a99140f3c12fd78ea30f855b63cfb74c1c976ff4436898266d9b37ad3ce
  • https://github.com/xwiki/xwiki-platform/commit/0f367aaae4e0696f61cf5a67a75edd27d1d16db6

Note that also the page XWiki.ConfigurableClass needs to be changed to xwiki/2.1 syntax for the escaping to work properly but the security vulnerability is fixed also without changing the syntax.

References

  • https://github.com/xwiki/xwiki-platform/commit/bd82be936c21b65dee367d558e3050b9b6995713
  • https://github.com/xwiki/xwiki-platform/commit/749f6aee1bfbcf191c3734ea0aa9eba3aa63240e
  • https://github.com/xwiki/xwiki-platform/commit/1157c1ecea395aac7f64cd8a6f484b1225416dc7
  • https://github.com/xwiki/xwiki-platform/commit/0f367aaae4e0696f61cf5a67a75edd27d1d16db6
  • https://jira.xwiki.org/browse/XWIKI-21122
  • https://jira.xwiki.org/browse/XWIKI-21121
  • https://jira.xwiki.org/browse/XWIKI-21194
ghsa
#vulnerability#mac#git#java#rce#perl#jira#maven

Skip to content

    • Actions

      Automate any workflow

    • Packages

      Host and manage packages

    • Security

      Find and fix vulnerabilities

    • Codespaces

      Instant dev environments

    • Copilot

      Write better code with AI

    • Code review

      Manage code changes

    • Issues

      Plan and track work

    • Discussions

      Collaborate outside of code

    • GitHub Sponsors

      Fund open source developers

*   The ReadME Project
    
    GitHub community articles
  • Pricing
  1. GitHub Advisory Database
  2. GitHub Reviewed
  3. CVE-2023-50723

Remote code execution/programming rights with configuration section from any user account

Critical severity GitHub Reviewed Published Dec 15, 2023 in xwiki/xwiki-platform • Updated Dec 16, 2023

Package

maven org.xwiki.platform:xwiki-platform-administration-ui (Maven)

Affected versions

>= 2.3, < 14.10.15

>= 15.0-rc-1, < 15.5.2

>= 15.6-rc-1, < 15.7-rc-1

Patched versions

14.10.15

15.5.2

15.7-rc-1

Description

Published to the GitHub Advisory Database

Dec 16, 2023

Last updated

Dec 16, 2023

Related news

CVE-2023-50723: Remote code execution/programming rights with configuration section from any user account

XWiki Platform is a generic wiki platform. Starting in 2.3 and prior to versions 14.10.15, 15.5.2, and 15.7-rc-1, anyone who can edit an arbitrary wiki page in an XWiki installation can gain programming right through several cases of missing escaping in the code for displaying sections in the administration interface. This impacts the confidentiality, integrity and availability of the whole XWiki installation. Normally, all users are allowed to edit their own user profile so this should be exploitable by all users of the XWiki instance. This has been fixed in XWiki 14.10.15, 15.5.2 and 15.7RC1. The patches can be manually applied to the `XWiki.ConfigurableClassMacros` and `XWiki.ConfigurableClass` pages.