CVE-2022-31166

XWiki Platform Old Core is a core package for XWiki Platform, a generic wiki platform. Starting in versions 11.3.7, 11.0.3, and 12.0RC1, it is possible to exploit a bug in XWikiRights resolution of groups to obtain privilege escalation. More specifically, editing a right with the object editor leads to adding a supplementary empty value to groups which is then resolved as a reference to XWiki.WebHome page. Adding an XWikiGroup xobject to that page then transforms it to a group, any user put in that group would then obtain the privileges related to the edited right. Note that this security issue is normally mitigated by the fact that XWiki.WebHome (and XWiki space in general) should be protected by default for edit rights. The problem has been patched in XWiki 13.10.4 and 14.2RC1 to not consider anymore empty values in XWikiRights. It's possible to work around the problem by setting appropriate rights on XWiki.WebHome page to prevent users to edit it.

CVSS v3.0 8.8 HIGH

8.8^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-g4h6-qp44-wqvx	Third Party Advisory
https://github.com/xwiki/xwiki-platform/pull/1800	Patch Third Party Advisory
https://jira.xwiki.org/browse/XWIKI-15776	Vendor Advisory
https://jira.xwiki.org/browse/XWIKI-18386	Exploit Permissions Required Vendor Advisory

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Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:xwiki:xwiki::::::::
	cpe:2.3:a:xwiki:xwiki::::::::

Information

Published : 2022-09-07 07:15

Updated : 2022-09-13 15:43

NVD link : CVE-2022-31166

Mitre link : CVE-2022-31166

JSON object : View

CWE

NVD-CWE-noinfo

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Products Affected

xwiki

xwiki

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