GSD-2020-13940
Vulnerability from gsd - Updated: 2023-12-13 01:21Details
In Apache NiFi 1.0.0 to 1.11.4, the notification service manager and various policy authorizer and user group provider objects allowed trusted administrators to inadvertently configure a potentially malicious XML file. The XML file has the ability to make external calls to services (via XXE).
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2020-13940",
"description": "In Apache NiFi 1.0.0 to 1.11.4, the notification service manager and various policy authorizer and user group provider objects allowed trusted administrators to inadvertently configure a potentially malicious XML file. The XML file has the ability to make external calls to services (via XXE).",
"id": "GSD-2020-13940"
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2020-13940"
],
"details": "In Apache NiFi 1.0.0 to 1.11.4, the notification service manager and various policy authorizer and user group provider objects allowed trusted administrators to inadvertently configure a potentially malicious XML file. The XML file has the ability to make external calls to services (via XXE).",
"id": "GSD-2020-13940",
"modified": "2023-12-13T01:21:47.022521Z",
"schema_version": "1.4.0"
}
},
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},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "Apache NiFi",
"version": {
"version_data": [
{
"version_value": "Apache NiFi 1.0.0 to 1.11.4"
}
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"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "Information disclosure by XXE"
}
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}
]
},
"references": {
"reference_data": [
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"name": "https://nifi.apache.org/security#CVE-2020-13940",
"refsource": "MISC",
"url": "https://nifi.apache.org/security#CVE-2020-13940"
}
]
}
},
"gitlab.com": {
"advisories": [
{
"affected_range": "[1.0.0,1.11.4]",
"affected_versions": "All versions starting from 1.0.0 up to 1.11.4",
"cvss_v2": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
"cvss_v3": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
"cwe_ids": [
"CWE-1035",
"CWE-611",
"CWE-937"
],
"date": "2020-10-05",
"description": "In Apache NiFi, the notification service manager and various policy authorizer and user group provider objects allowed trusted administrators to inadvertently configure a potentially malicious XML file. The XML file has the ability to make external calls to services (via XXE).",
"fixed_versions": [
"1.12.0"
],
"identifier": "CVE-2020-13940",
"identifiers": [
"CVE-2020-13940"
],
"not_impacted": "All versions before 1.0.0, all versions after 1.11.4",
"package_slug": "maven/org.apache.nifi/nifi",
"pubdate": "2020-10-01",
"solution": "Upgrade to version 1.12.0 or above.",
"title": "Improper Restriction of XML External Entity Reference",
"urls": [
"https://nvd.nist.gov/vuln/detail/CVE-2020-13940",
"https://nifi.apache.org/security#CVE-2020-13940"
],
"uuid": "d14d6cc5-62d2-4b2f-b52e-0b512db42472"
}
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},
"nvd.nist.gov": {
"configurations": {
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"nodes": [
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"cpe_match": [
{
"cpe23Uri": "cpe:2.3:a:apache:nifi:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndIncluding": "1.11.4",
"versionStartIncluding": "1.0.0",
"vulnerable": true
}
],
"operator": "OR"
}
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"description": {
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}
]
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"references": {
"reference_data": [
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"refsource": "MISC",
"tags": [
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"url": "https://nifi.apache.org/security#CVE-2020-13940"
}
]
}
},
"impact": {
"baseMetricV2": {
"acInsufInfo": false,
"cvssV2": {
"accessComplexity": "MEDIUM",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "NONE",
"baseScore": 4.3,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
"version": "2.0"
},
"exploitabilityScore": 8.6,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"severity": "MEDIUM",
"userInteractionRequired": true
},
"baseMetricV3": {
"cvssV3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6
}
},
"lastModifiedDate": "2020-10-05T23:43Z",
"publishedDate": "2020-10-01T20:15Z"
}
}
}
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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 |
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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.
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- Not confirmed: The user expressed doubt about the validity of the vulnerability.
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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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