CVE-2020-8279

Missing validation of server certificates for out-going connections in Nextcloud Social < 0.4.0 allowed a man-in-the-middle attack.

CVSS v3 7.4 HIGH
CVSS v2.0 5.8 MEDIUM

7.4^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.2 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

5.8^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:P/I:P/A:N

Exploitability : 8.6 / Impact : 4.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact NONE

References

Link	Resource
https://hackerone.com/reports/915585	Exploit Third Party Advisory
https://nextcloud.com/security/advisory/?id=NC-SA-2020-043	Broken Link Product

Configurations

Configuration 1 (hide)

cpe:2.3:a:nextcloud:social:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2020-11-19 01:15

Updated : 2024-02-28 18:08

NVD link : CVE-2020-8279

Mitre link : CVE-2020-8279

CVE.ORG link : CVE-2020-8279

JSON object : View

Products Affected

nextcloud

social

CWE

CWE-295

Improper Certificate Validation

{"id": "CVE-2020-8279", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 5.8, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:N", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "MEDIUM", "availabilityImpact": "NONE", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 4.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.4, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.2, "exploitabilityScore": 2.2}]}, "published": "2020-11-19T01:15:12.953", "references": [{"url": "https://hackerone.com/reports/915585", "tags": ["Exploit", "Third Party Advisory"], "source": "support@hackerone.com"}, {"url": "https://nextcloud.com/security/advisory/?id=NC-SA-2020-043", "tags": ["Broken Link", "Product"], "source": "support@hackerone.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-295"}]}, {"type": "Secondary", "source": "support@hackerone.com", "description": [{"lang": "en", "value": "CWE-295"}]}], "descriptions": [{"lang": "en", "value": "Missing validation of server certificates for out-going connections in Nextcloud Social < 0.4.0 allowed a man-in-the-middle attack."}, {"lang": "es", "value": "Una falta de comprobaci\u00f3n de unos certificados del servidor para unas conexiones salientes en Nextcloud Social versiones anteriores a 0.4.0, permiti\u00f3 un ataque de tipo man-in-the-middle"}], "lastModified": "2020-11-25T18:25:07.510", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:nextcloud:social:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DDE46804-6B67-441F-B6E3-C8B79D68BF26", "versionEndExcluding": "0.4.0"}], "operator": "OR"}]}], "sourceIdentifier": "support@hackerone.com"}