GSD-2021-3856
Vulnerability from gsd - Updated: 2023-12-13 01:23Details
ClassLoaderTheme and ClasspathThemeResourceProviderFactory allows reading any file available as a resource to the classloader. By sending requests for theme resources with a relative path from an external HTTP client, the client will receive the content of random files if available.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2021-3856",
"description": "ClassLoaderTheme and ClasspathThemeResourceProviderFactory allows reading any file available as a resource to the classloader. By sending requests for theme resources with a relative path from an external HTTP client, the client will receive the content of random files if available.",
"id": "GSD-2021-3856"
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
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"aliases": [
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],
"details": "ClassLoaderTheme and ClasspathThemeResourceProviderFactory allows reading any file available as a resource to the classloader. By sending requests for theme resources with a relative path from an external HTTP client, the client will receive the content of random files if available.",
"id": "GSD-2021-3856",
"modified": "2023-12-13T01:23:34.103345Z",
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}
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"references": {
"reference_data": [
{
"name": "https://issues.redhat.com/browse/KEYCLOAK-19422",
"refsource": "MISC",
"url": "https://issues.redhat.com/browse/KEYCLOAK-19422"
},
{
"name": "https://github.com/keycloak/keycloak/pull/8588",
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"url": "https://github.com/keycloak/keycloak/pull/8588"
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"advisories": [
{
"affected_range": "(,15.1.0)",
"affected_versions": "All versions before 15.1.0",
"cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
"cwe_ids": [
"CWE-1035",
"CWE-552",
"CWE-937"
],
"date": "2022-09-02",
"description": "ClassLoaderTheme and ClasspathThemeResourceProviderFactory allows reading any file available as a resource to the classloader. By sending requests for theme resources with a relative path from an external HTTP client, the client will receive the content of random files if available.",
"fixed_versions": [
"15.1.0"
],
"identifier": "CVE-2021-3856",
"identifiers": [
"GHSA-3w4v-rvc4-2xpw",
"CVE-2021-3856"
],
"not_impacted": "All versions starting from 15.1.0",
"package_slug": "maven/org.keycloak/keycloak-core",
"pubdate": "2022-08-27",
"solution": "Upgrade to version 15.1.0 or above.",
"title": "Files or Directories Accessible to External Parties",
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"cwe_ids": [
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"CWE-22",
"CWE-937"
],
"date": "2023-07-10",
"description": "ClassLoaderTheme and ClasspathThemeResourceProviderFactory allows reading any file available as a resource to the classloader. By sending requests for theme resources with a relative path from an external HTTP client, the client will receive the content of random files if available.",
"fixed_versions": [
"15.1.0"
],
"identifier": "CVE-2021-3856",
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"not_impacted": "All versions starting from 15.1.0",
"package_slug": "maven/org.keycloak/keycloak-services",
"pubdate": "2022-08-26",
"solution": "Upgrade to version 15.1.0 or above.",
"title": "Files or Directories Accessible to External Parties",
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"https://github.com/keycloak/keycloak/commit/73f0474008e1bebd0733e62a22aceda9e5de6743",
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"https://issues.redhat.com/browse/KEYCLOAK-19422",
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"uuid": "256492f9-30bf-42a4-859b-9793c993ea11"
}
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"value": "ClassLoaderTheme and ClasspathThemeResourceProviderFactory allows reading any file available as a resource to the classloader. By sending requests for theme resources with a relative path from an external HTTP client, the client will receive the content of random files if available."
}
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},
"impact": {
"baseMetricV3": {
"cvssV3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 4.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 1.4
}
},
"lastModifiedDate": "2023-07-10T19:27Z",
"publishedDate": "2022-08-26T16:15Z"
}
}
}
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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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