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Remote code execution from account via SearchSuggestConfigSheet

Critical
michitux published GHSA-h63h-5c77-77p5 Jul 31, 2024

Package

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

Affected versions

>= 9.2-rc-1, < 14.10.21
>= 15.0-rc-1, < 15.5.5
>= 15.6-rc-1, < 15.10.2

Patched versions

14.10.21
15.5.5
15.10.2

Description

Impact

Any user with edit right on any page can perform arbitrary remote code execution by adding instances of XWiki.SearchSuggestConfig and XWiki.SearchSuggestSourceClass to their user profile or any other page. This compromises the confidentiality, integrity and availability of the whole XWiki installation.

To reproduce on an instance, as a user without script nor programming rights, add an object of type XWiki.SearchSuggestConfig to your profile page, and an object of type XWiki.SearchSuggestSourceClass as well. On this last object, set both name and icon properties to $services.logging.getLogger("attacker").error("I got programming: $services.security.authorization.hasAccess('programming')") and limit and engine to {{/html}}{{async}}{{velocity}}$services.logging.getLogger("attacker").error("I got programming: $services.security.authorization.hasAccess('programming')"){{/velocity}}{{/async}}. Save and display the page. If the logs contain any message ERROR attacker - I got programming: true then the instance is vulnerable.

Patches

This vulnerability has been patched in XWiki 14.10.21, 15.5.5 and 15.10.2.

Workarounds

We're not aware of any workaround except upgrading.

References

Severity

Critical

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CVE ID

CVE-2024-37901

Weaknesses

Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')

The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes code syntax before using the input in a dynamic evaluation call (e.g. eval). Learn more on MITRE.

Missing Authorization

The product does not perform an authorization check when an actor attempts to access a resource or perform an action. Learn more on MITRE.