GHSA-4f8m-7h83-9f6m CVE-2023-40572
XWiki Platform vulnerable to CSRF privilege escalation/RCE via the create action
- Severity
- 8.0 / 10
- High · CVSS 3.1
- Exploit chance (EPSS)
- 0.62%
- Chance of exploitation in the next 30 days. Higher than 49.68% of scored vulnerabilities.
- Known exploited
- No
- Not in CISA's catalog
- Weakness
- CWE-352 Cross-Site Request Forgery (CSRF)
- Fix
14.10.9- Upgrade org.xwiki.platform:xwiki-platform-oldcore to this version or later
Description
Impact
The create action is vulnerable to a CSRF attack, allowing script and thus remote code execution when targeting a user with script/programming right, thus compromising the confidentiality, integrity and availability of the whole XWiki installation. To reproduce, the XWiki syntax [[image:path:/xwiki/bin/create/Foo/WebHome?template=&parent=Main.WebHome&title=$services.logging.getLogger(%22foo%22).error(%22Script%20executed!%22)]] can be added to any place that supports XWiki syntax like a comment. When a user with script right views this image and a log message ERROR foo - Script executed! appears in the log, the XWiki installation is vulnerable.
Patches
This has been patched in XWiki 14.10.9 and 15.4RC1 by requiring a CSRF token for the actual page creation.
Workarounds
There are no known workarounds.
References
Affected versions
Maven
| Package | Vulnerable | Fixed in |
|---|---|---|
| org.xwiki.platform:xwiki-platform-oldcore | >= 3.2-milestone-3, < 14.10.9 |
14.10.9 |
| org.xwiki.platform:xwiki-platform-oldcore | >= 15.0-rc-1, < 15.4-rc-1 |
15.4-rc-1 |
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 → 14.10.9
- maven
<dependency><groupId>org.xwiki.platform</groupId><artifactId>xwiki-platform-oldcore</artifactId><version>14.10.9</version></dependency>- gradle
implementation("org.xwiki.platform:xwiki-platform-oldcore:14.10.9")
Severity breakdown
CVSS 3.1 8.0
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Weakness
CWE-352: Cross-Site Request Forgery (CSRF)
The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor.
How to prevent it
- 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 [REF-1482]. For example, use anti-CSRF packages such as the OWASP CSRFGuard. [REF-330] Another example is the ESAPI Session Management control, which includes a component for CSRF. [REF-45]
- Implementation: Ensure that the application is free of cross-site scripting issues (CWE-79), because most CSRF defenses can be bypassed using attacker-controlled script.
- Architecture and Design: Generate a unique nonce for each form, place the nonce into the form, and verify the nonce upon receipt of the form. Be sure that the nonce is not predictable (CWE-330). [REF-332]
- Architecture and Design: Identify especially dangerous operations. When the user performs a dangerous operation, send a separate confirmation request to ensure that the user intended to perform that operation.
- Architecture and Design: Use the "double-submitted cookie" method as described by Felten and Zeller: When a user visits a site, the site should generate a pseudorandom value and set it as a cookie on the user's machine. The site should require every form submission to include this value as a form value and also as a cookie value. When a POST request is sent to the site, the request should only be considered valid if the form value and the cookie value are the same. Because of the same-origin policy, an attacker cannot read or modify the value stored in the cookie. To successfully submit a form on behalf of the user, the attacker would have to correctly guess the pseudorandom value. If the pseudorandom value is cryptographically strong, this will be prohibitively difficult. This technique requires Javascript, so it may not work for browsers that have Javascript disabled. [REF-331]
- Architecture and Design: Do not use the GET method for any request that triggers a state change.
- Implementation: Check the HTTP Referer header to see if the request originated from an expected page. This could break legitimate functionality, because users or proxies may have disabled sending the Referer for privacy reasons.
References
Advisories
Packages
Other links
Timeline
- Published
- Last updated by the source
- Latest EPSS score
Related advisories
| Advisory | Severity | Why 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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