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Security Advisories: GSA_kwCzR0hTQS02eHhyLTY0OG0tZ2NoNs4AA0ic
XWiki Platform vulnerable to cross-site request forgery (CSRF) via the REST API
Impact
The REST API allows executing all actions via POST requests and accepts text/plain
, multipart/form-data
or application/www-form-urlencoded
as content types which can be sent via regular HTML forms, thus allowing cross-site request forgery. With the interaction of a user with programming rights, this allows remote code execution through script macros and thus impacts the integrity, availability and confidentiality of the whole XWiki installation.
For regular cookie-based authentication, the vulnerability is mitigated by SameSite cookie restrictions but as of March 2023, these are not enabled by default in Firefox and Safari.
Patches
The vulnerability has been patched in XWiki 14.10.8 and 15.2 by requiring a CSRF token header for certain request types that are susceptible to CSRF attacks.
Workarounds
It is possible to check for the Origin
header in a reverse proxy to protect the REST endpoint from CSRF attacks, see the Jira issue for an example configuration.
References
- https://jira.xwiki.org/browse/XWIKI-20135
- https://github.com/xwiki/xwiki-platform/commit/4c175405faa0e62437df397811c7526dfc0fbae7
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS02eHhyLTY0OG0tZ2NoNs4AA0ic
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Critical
Classification: General
Published: 10 months ago
Updated: 6 months ago
CVSS Score: 9.7
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Identifiers: GHSA-6xxr-648m-gch6, CVE-2023-37277
References:
- https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-6xxr-648m-gch6
- https://nvd.nist.gov/vuln/detail/CVE-2023-37277
- https://github.com/xwiki/xwiki-platform/commit/4c175405faa0e62437df397811c7526dfc0fbae7
- https://jira.xwiki.org/browse/XWIKI-20135
- https://github.com/advisories/GHSA-6xxr-648m-gch6
Blast Radius: 1.0
Affected Packages
maven:org.xwiki.platform:xwiki-platform-rest-server
Affected Version Ranges: >= 15.0-rc-1, < 15.2, >= 1.8, < 14.10.8Fixed in: 15.2, 14.10.8
maven:com.xpn.xwiki.platform:xwiki-rest
Affected Version Ranges: >= 1.8, < 14.10.8Fixed in: 14.10.8
maven:com.xpn.xwiki.platform:xwiki-core-rest-server
Affected Version Ranges: >= 1.8, < 14.10.8Fixed in: 14.10.8