GSD-2021-28099
Vulnerability from gsd - Updated: 2023-12-13 01:23Details
In Netflix OSS Hollow, since the Files.exists(parent) is run before creating the directories, an attacker can pre-create these directories with wide permissions. Additionally, since an insecure source of randomness is used, the file names to be created can be deterministically calculated.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2021-28099",
"description": "In Netflix OSS Hollow, since the Files.exists(parent) is run before creating the directories, an attacker can pre-create these directories with wide permissions. Additionally, since an insecure source of randomness is used, the file names to be created can be deterministically calculated.",
"id": "GSD-2021-28099"
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2021-28099"
],
"details": "In Netflix OSS Hollow, since the Files.exists(parent) is run before creating the directories, an attacker can pre-create these directories with wide permissions. Additionally, since an insecure source of randomness is used, the file names to be created can be deterministically calculated.",
"id": "GSD-2021-28099",
"modified": "2023-12-13T01:23:29.600196Z",
"schema_version": "1.4.0"
}
},
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"product": {
"product_data": [
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"product_name": "Netflix OSS Hollow",
"version": {
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}
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"value": "In Netflix OSS Hollow, since the Files.exists(parent) is run before creating the directories, an attacker can pre-create these directories with wide permissions. Additionally, since an insecure source of randomness is used, the file names to be created can be deterministically calculated."
}
]
},
"problemtype": {
"problemtype_data": [
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"description": [
{
"lang": "eng",
"value": "Local Information Disclosure"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://github.com/Netflix/security-bulletins/blob/master/advisories/nflx-2021-001.md",
"refsource": "MISC",
"url": "https://github.com/Netflix/security-bulletins/blob/master/advisories/nflx-2021-001.md"
}
]
}
},
"gitlab.com": {
"advisories": [
{
"affected_range": "(,)",
"affected_versions": "All versions",
"cvss_v2": "AV:L/AC:L/Au:N/C:P/I:P/A:N",
"cvss_v3": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
"cwe_ids": [
"CWE-1035",
"CWE-330",
"CWE-937"
],
"date": "2023-08-08",
"description": "An attacker can pre-create directories with wide permissions.",
"fixed_versions": [],
"identifier": "CVE-2021-28099",
"identifiers": [
"CVE-2021-28099"
],
"not_impacted": "",
"package_slug": "maven/com.netflix.hollow/hollow",
"pubdate": "2021-03-23",
"solution": "Unfortunately, there is no solution available yet.",
"title": "Incorrect Permission Assignment for Critical Resource",
"urls": [
"https://nvd.nist.gov/vuln/detail/CVE-2021-28099"
],
"uuid": "69365fe3-2d3f-4d89-9cb5-29d07ca8498d"
}
]
},
"nvd.nist.gov": {
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"nodes": [
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"cpe_name": [],
"vulnerable": true
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"operator": "OR"
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"cve": {
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"ID": "CVE-2021-28099"
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"description": {
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"value": "In Netflix OSS Hollow, since the Files.exists(parent) is run before creating the directories, an attacker can pre-create these directories with wide permissions. Additionally, since an insecure source of randomness is used, the file names to be created can be deterministically calculated."
}
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"url": "https://github.com/Netflix/security-bulletins/blob/master/advisories/nflx-2021-001.md"
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},
"impact": {
"baseMetricV2": {
"acInsufInfo": false,
"cvssV2": {
"accessComplexity": "LOW",
"accessVector": "LOCAL",
"authentication": "NONE",
"availabilityImpact": "NONE",
"baseScore": 3.6,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:N",
"version": "2.0"
},
"exploitabilityScore": 3.9,
"impactScore": 4.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"severity": "LOW",
"userInteractionRequired": false
},
"baseMetricV3": {
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"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 4.4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
"version": "3.1"
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"exploitabilityScore": 1.8,
"impactScore": 2.5
}
},
"lastModifiedDate": "2021-03-26T20:16Z",
"publishedDate": "2021-03-23T21:15Z"
}
}
}
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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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