GHSA-m5m2-h6h9-p2c8

Suggest an improvement
Source
https://github.com/advisories/GHSA-m5m2-h6h9-p2c8
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/09/GHSA-m5m2-h6h9-p2c8/GHSA-m5m2-h6h9-p2c8.json
JSON Data
https://api.test.osv.dev/v1/vulns/GHSA-m5m2-h6h9-p2c8
Aliases
Published
2023-09-04T16:36:40Z
Modified
2023-11-01T05:02:51.752437Z
Severity
  • 6.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L CVSS Calculator
Summary
Velocity execution without script right through VelocityCode and VelocityWiki property
Details

Impact

It is possible in XWiki to execute Velocity code without having script right by creating an XClass with a property of type "TextArea" and content type "VelocityCode" or "VelocityWiki". For the former, the syntax of the document needs to be set the xwiki/1.0 (this syntax doesn't need to be installed). In both cases, when adding the property to an object, the Velocity code is executed regardless of the rights of the author of the property (edit right is still required, though). In both cases, the code is executed with the correct context author so no privileged APIs can be accessed. However, Velocity still grants access to otherwise inaccessible data and APIs that could allow further privilege escalation.

At least for "VelocityCode", this behavior is most likely very old but only since XWiki 7.2, script right is a separate right, before that version all users were allowed to execute Velocity and thus this was expected and not a security issue.

Patches

This has been patched in XWiki 14.10.10 and 15.4 RC1.

Workarounds

There are no known workarounds.

References

  • https://jira.xwiki.org/browse/XWIKI-20847
  • https://jira.xwiki.org/browse/XWIKI-20848
  • https://github.com/xwiki/xwiki-platform/commit/edc52579eeaab1b4514785c134044671a1ecd839
Database specific
{
    "nvd_published_at": "2023-09-01T20:15:07Z",
    "cwe_ids": [
        "CWE-862"
    ],
    "severity": "MODERATE",
    "github_reviewed": true,
    "github_reviewed_at": "2023-09-04T16:36:40Z"
}
References

Affected packages

Maven / org.xwiki.platform:xwiki-platform-oldcore

Package

Name
org.xwiki.platform:xwiki-platform-oldcore
View open source insights on deps.dev
Purl
pkg:maven/org.xwiki.platform/xwiki-platform-oldcore

Affected ranges

Type
ECOSYSTEM
Events
Introduced
7.2
Fixed
14.10.10

Maven / org.xwiki.platform:xwiki-platform-oldcore

Package

Name
org.xwiki.platform:xwiki-platform-oldcore
View open source insights on deps.dev
Purl
pkg:maven/org.xwiki.platform/xwiki-platform-oldcore

Affected ranges

Type
ECOSYSTEM
Events
Introduced
15.0-rc-1
Fixed
15.4-rc-1