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AQL injection through flexSearch in cruddl

Critical
Yogu published GHSA-qm4w-4995-vg7f Sep 8, 2022

Package

npm cruddl (npm)

Affected versions

>= 3.0.0 && < 3.0.2
>= 1.1.0 && < 2.7.0

Patched versions

3.0.2
2.7.0

Description

Impact

If a vunerable version of cruddl is used to generate a schema that uses @flexSearchFulltext, users of that schema may be able to inject arbitrary AQL queries that will be forwarded to and executed by ArangoDB.

Schemas that do not use @flexSearchFulltext are not affected.

The attacker needs to have READ permission to at least one root entity type that has @flexSearchFulltext enabled.

Patches

The issue has been fixed in version 3.0.2 and in version 2.7.0 of cruddl.

Workarounds

Users can temporarily remove @flexSearchFulltext from their schemas before they can update cruddl.

For more information

If you have any questions or comments about this advisory:

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-2022-36084

Weaknesses

Improper Neutralization of Special Elements in Data Query Logic

The product generates a query intended to access or manipulate data in a data store such as a database, but it does not neutralize or incorrectly neutralizes special elements that can modify the intended logic of the query. Learn more on MITRE.