FKIE_CVE-2020-8118
Vulnerability from fkie_nvd - Published: 2020-02-04 20:15 - Updated: 2026-06-17 03:25
Severity
Summary
An authenticated server-side request forgery in Nextcloud server 16.0.1 allowed to detect local and remote services when adding a new subscription in the calendar application.
References
| URL | Tags | ||
|---|---|---|---|
| support@hackerone.com | http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00019.html | Release Notes, Third Party Advisory | |
| support@hackerone.com | http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00022.html | Release Notes, Third Party Advisory | |
| support@hackerone.com | https://hackerone.com/reports/427835 | Exploit, Third Party Advisory | |
| support@hackerone.com | https://nextcloud.com/security/advisory/?id=NC-SA-2019-014 | Vendor Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00019.html | Release Notes, Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00022.html | Release Notes, Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://hackerone.com/reports/427835 | Exploit, Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://nextcloud.com/security/advisory/?id=NC-SA-2019-014 | Vendor Advisory |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| nextcloud | nextcloud_server | * | |
| nextcloud | nextcloud_server | * | |
| opensuse | backports_sle | 15.0 | |
| novell | suse_linux_enterprise_server | 12.0 |
{
"affected": [
{
"affectedData": [
{
"product": "Nextcloud Server",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "16.0.1"
}
]
}
],
"source": "support@hackerone.com"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*",
"matchCriteriaId": "F4918793-0B98-42FC-B185-8B8B3E58C0C7",
"versionEndExcluding": "15.0.9",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*",
"matchCriteriaId": "930E2DE7-4D34-4634-8FC4-CDEB45A9B8EF",
"versionEndExcluding": "16.0.2",
"versionStartIncluding": "16.0.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:opensuse:backports_sle:15.0:sp1:*:*:*:*:*:*",
"matchCriteriaId": "40513095-7E6E-46B3-B604-C926F1BA3568",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:-:*:*:*:*:*:*",
"matchCriteriaId": "1B097F99-D0D7-4B32-9E1A-BE5E653CFA7C",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "An authenticated server-side request forgery in Nextcloud server 16.0.1 allowed to detect local and remote services when adding a new subscription in the calendar application."
},
{
"lang": "es",
"value": "Un ataque de tipo server-side request forgery autenticado en Nextcloud versi\u00f3n 16.0.1, permiti\u00f3 detectar servicios locales y remotos al agregar una nueva suscripci\u00f3n en la aplicaci\u00f3n calendar."
}
],
"id": "CVE-2020-8118",
"lastModified": "2026-06-17T03:25:53.553",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "SINGLE",
"availabilityImpact": "NONE",
"baseScore": 4.0,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:L/Au:S/C:P/I:N/A:N",
"version": "2.0"
},
"exploitabilityScore": 8.0,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.0,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N",
"version": "3.1"
},
"exploitabilityScore": 3.1,
"impactScore": 1.4,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2020-02-04T20:15:13.730",
"references": [
{
"source": "support@hackerone.com",
"tags": [
"Release Notes",
"Third Party Advisory"
],
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00019.html"
},
{
"source": "support@hackerone.com",
"tags": [
"Release Notes",
"Third Party Advisory"
],
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00022.html"
},
{
"source": "support@hackerone.com",
"tags": [
"Exploit",
"Third Party Advisory"
],
"url": "https://hackerone.com/reports/427835"
},
{
"source": "support@hackerone.com",
"tags": [
"Vendor Advisory"
],
"url": "https://nextcloud.com/security/advisory/?id=NC-SA-2019-014"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Release Notes",
"Third Party Advisory"
],
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00019.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Release Notes",
"Third Party Advisory"
],
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00022.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Exploit",
"Third Party Advisory"
],
"url": "https://hackerone.com/reports/427835"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "https://nextcloud.com/security/advisory/?id=NC-SA-2019-014"
}
],
"sourceIdentifier": "support@hackerone.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-918"
}
],
"source": "support@hackerone.com",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-918"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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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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