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GHSA-2jhm-qp48-hv5j CVE-2022-23621

Missing authorization in xwiki-platform

Medium Maven
Severity
5.5 / 10
Medium · CVSS 3.1
Exploit chance (EPSS)
0.94%
Chance of exploitation in the next 30 days. Higher than 60.79% of scored vulnerabilities.
Known exploited
No
Not in CISA's catalog
Weakness
CWE-552 Files or Directories Accessible to External Parties
CWE-862 Missing Authorization
Fix
13.7-rc-1
Upgrade org.xwiki.platform:xwiki-platform-oldcore to this version or later

Description

Impact

Any user with SCRIPT right (EDIT right before XWiki 7.4) can read any file located in the XWiki WAR (for example xwiki.cfg and xwiki.properties) through XWiki#invokeServletAndReturnAsString:

$xwiki.invokeServletAndReturnAsString("/WEB-INF/xwiki.cfg")

Patches

It has been patched in XWiki versions 12.10.9, 13.4.3 and 13.7-rc-1.

Workarounds

The only workaround is to give SCRIPT right only to trusted users.

References

https://jira.xwiki.org/browse/XWIKI-18870

For more information

If you have any questions or comments about this advisory:

Affected versions

Maven

PackageVulnerableFixed in
org.xwiki.platform:xwiki-platform-oldcore
>= 13.6-rc-1, < 13.7-rc-1
13.7-rc-1
org.xwiki.platform:xwiki-platform-oldcore
>= 13.0.0, < 13.4.3
13.4.3
org.xwiki.platform:xwiki-platform-oldcore
< 12.10.9
12.10.9

How to fix

Move to the fixed version or later with your package manager, update the lockfile, and run your tests. If the package only arrives through another dependency, upgrade that dependency first. If none of its releases pulls a fixed version yet, force the version with your package manager's override.

org.xwiki.platform:xwiki-platform-oldcore Maven → 13.7-rc-1

maven
<dependency><groupId>org.xwiki.platform</groupId><artifactId>xwiki-platform-oldcore</artifactId><version>13.7-rc-1</version></dependency>
gradle
implementation("org.xwiki.platform:xwiki-platform-oldcore:13.7-rc-1")

Severity breakdown

CVSS 3.1 5.5

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:H

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

Weakness

CWE-552: Files or Directories Accessible to External Parties

The product makes files or directories accessible to unauthorized actors, even though they should not be.

How to prevent it
  • Implementation, System Configuration, Operation: When storing data in the cloud (e.g., S3 buckets, Azure blobs, Google Cloud Storage, etc.), use the provider's controls to disable public access.

CWE-862: Missing Authorization

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

How to prevent it
  • Architecture and Design: Divide the product into anonymous, normal, privileged, and administrative areas. Reduce the attack surface by carefully mapping roles with data and functionality. Use role-based access control (RBAC) [REF-229] to enforce the roles at the appropriate boundaries. Note that this approach may not protect against horizontal authorization, i.e., it will not protect a user from attacking others with the same role.
  • Architecture and Design: Ensure that access control checks are performed related to the business logic. These checks may be different than the access control checks that are applied to more generic resources such as files, connections, processes, memory, and database records. For example, a database may restrict access for medical records to a specific database user, but each record might only be intended to be accessible to the patient and the patient's doctor [REF-7].
  • Architecture and Design: Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid. For example, consider using authorization frameworks such as the JAAS Authorization Framework [REF-233] and the OWASP ESAPI Access Control feature [REF-45].
  • Architecture and Design: For web applications, make sure that the access control mechanism is enforced correctly at the server side on every page. Users should not be able to access any unauthorized functionality or information by simply requesting direct access to that page. One way to do this is to ensure that all pages containing sensitive information are not cached, and that all such pages restrict access to requests that are accompanied by an active and authenticated session token associated with a user who has the required permissions to access that page.
  • System Configuration, Installation: Use the access control capabilities of your operating system and server environment and define your access control lists accordingly. Use a "default deny" policy when defining these ACLs.

References

Timeline

  1. Published
  2. Last updated by the source
  3. Latest EPSS score
AdvisorySeverityWhy it's related
GHSA-qj4x-9g63-25g6
XWiki Platform Old Core: Resource path traversal via /skin/ action endpoint in Jetty 12+
High Also affects org.xwiki.platform:xwiki-platform-oldcore
GHSA-mrqg-xmgm-rc5g
XWiki's REST APIs can list all pages/spaces, leading to unavailability
High Also affects org.xwiki.platform:xwiki-platform-oldcore
GHSA-h259-74h5-4rh9
XWiki vulnerable to remote code execution with script right through unprotected Velocity scripting API
Critical Also affects org.xwiki.platform:xwiki-platform-oldcore
GHSA-57q2-6cp4-9mq3
XWiki exposes passwords and emails stored in fields not named password/email in xml.vm
Medium Also affects org.xwiki.platform:xwiki-platform-oldcore
GHSA-r38m-cgpg-qj69
XWiki leaks password hashes and other accessible password properties
Medium Also affects org.xwiki.platform:xwiki-platform-oldcore
GHSA-p9qm-p942-q3w5
XWiki Platform vulnerable to SQL injection through XWiki#searchDocuments API
Critical Also affects org.xwiki.platform:xwiki-platform-oldcore
GHSA-jp4x-w9cj-97q7
XWiki allows remote code execution through preview of XClass changes in AWM editor
High Also affects org.xwiki.platform:xwiki-platform-oldcore
GHSA-prwh-7838-xf82
XWiki allows SQL injection in query endpoint of REST API with Oracle
Critical Also affects org.xwiki.platform:xwiki-platform-oldcore
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