Ecosyste.ms: Advisories

Security Advisories: GSA_kwCzR0hTQS1xeGpnLWpoZ3ctcWhyds4AAyAC

org.xwiki.platform:xwiki-platform-panels-ui vulnerable to Eval Injection

Impact

Any user with view rights can execute arbitrary Groovy, Python or Velocity code in XWiki leading to full access to the XWiki installation. The root cause is improper escaping of UIX parameters

A proof of concept exploit is to log in, add an XWiki.UIExtensionClass xobject to the user profile page, with an Extension Parameters content of:

order=100
label={{/html}} {{async async="true" cached="false" context="doc.reference"}}{{groovy}}println("Hello " + "from groovy!"){{/groovy}}{{/async}}
icon=icon:pencil
target=XWiki.username

Then, navigating to PanelsCode.ApplicationsPanelConfigurationSheet (i.e., <xwiki-host>/xwiki/bin/view/PanelsCode/ApplicationsPanelConfigurationSheet where <xwiki-host> is the URL of your XWiki installation) should not execute the Groovy script. If it does, you will see Hello from groovy! displayed on the screen.

Patches

The vulnerability has been patched in XWiki 13.10.11, 14.4.7 and 14.10-rc-1

Workarounds

The issue can be fixed by editing the PanelsCode.ApplicationsPanelConfigurationSheet wiki page and making the same modifications as shown in the patch for this issue.

References

• https://github.com/xwiki/xwiki-platform/commit/6de5442f3c91c3634a66c7b458d5b142e1c2a2dc
• https://jira.xwiki.org/browse/XWIKI-20294

For more information

If you have any questions or comments about this advisory:

• Open an issue in Jira XWiki.org
• Email us at Security Mailing List

Permalink: https://github.com/advisories/GHSA-qxjg-jhgw-qhrv
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS1xeGpnLWpoZ3ctcWhyds4AAyAC
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Critical
Classification: General
Published: almost 2 years ago
Updated: almost 2 years ago

CVSS Score: 10.0
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS Percentage: 0.00239
EPSS Percentile: 0.61409

Identifiers: GHSA-qxjg-jhgw-qhrv, CVE-2023-27479
References:

• https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-qxjg-jhgw-qhrv
• https://nvd.nist.gov/vuln/detail/CVE-2023-27479
• https://github.com/xwiki/xwiki-platform/commit/6de5442f3c91c3634a66c7b458d5b142e1c2a2dc
• https://jira.xwiki.org/browse/XWIKI-20294
• https://github.com/advisories/GHSA-qxjg-jhgw-qhrv

Repository: https://github.com/xwiki/xwiki-platform
Blast Radius: 1.0

Affected Packages