CVE-2020-8150 (GCVE-0-2020-8150)
Vulnerability from cvelistv5
Published
2020-11-09 14:19
Modified
2024-08-04 09:48
Severity ?
EPSS score ?
0.02%
(0.04746)
Summary
A cryptographic issue in Nextcloud Server 19.0.1 allowed an attacker to downgrade the encryption scheme and break the integrity of encrypted files.
References
Impacted products
Vendor | Product | Version | ||
---|---|---|---|---|
n/a | Nextcloud Server |
Version: 19.0.2 |
{ containers: { adp: [ { providerMetadata: { dateUpdated: "2024-08-04T09:48:25.666Z", orgId: "af854a3a-2127-422b-91ae-364da2661108", shortName: "CVE", }, references: [ { tags: [ "x_refsource_MISC", "x_transferred", ], url: "https://hackerone.com/reports/742588", }, { tags: [ "x_refsource_MISC", "x_transferred", ], url: "https://nextcloud.com/security/advisory/?id=NC-SA-2020-039", }, { name: "20201225 Re: [FD] CVE-2020-8150 - Remote Code Execution as SYSTEM/root via Backblaze", tags: [ "mailing-list", "x_refsource_FULLDISC", "x_transferred", ], url: "http://seclists.org/fulldisclosure/2020/Dec/55", }, { name: "20201229 Re: [FD] CVE-2020-8150 - Remote Code Execution as SYSTEM/root via Backblaze", tags: [ "mailing-list", "x_refsource_FULLDISC", "x_transferred", ], url: "http://seclists.org/fulldisclosure/2020/Dec/57", }, { name: "20201229 Re: CVE-2020-8150 - Remote Code Execution as SYSTEM/root via Backblaze", tags: [ "mailing-list", "x_refsource_FULLDISC", "x_transferred", ], url: "http://seclists.org/fulldisclosure/2020/Dec/58", }, ], title: "CVE Program Container", }, ], cna: { affected: [ { product: "Nextcloud Server", vendor: "n/a", versions: [ { status: "affected", version: "19.0.2", }, ], }, ], descriptions: [ { lang: "en", value: "A cryptographic issue in Nextcloud Server 19.0.1 allowed an attacker to downgrade the encryption scheme and break the integrity of encrypted files.", }, ], problemTypes: [ { descriptions: [ { cweId: "CWE-310", description: "Cryptographic Issues - Generic (CWE-310)", lang: "en", type: "CWE", }, ], }, ], providerMetadata: { dateUpdated: "2020-12-29T10:06:12", orgId: "36234546-b8fa-4601-9d6f-f4e334aa8ea1", shortName: "hackerone", }, references: [ { tags: [ "x_refsource_MISC", ], url: "https://hackerone.com/reports/742588", }, { tags: [ "x_refsource_MISC", ], url: "https://nextcloud.com/security/advisory/?id=NC-SA-2020-039", }, { name: "20201225 Re: [FD] CVE-2020-8150 - Remote Code Execution as SYSTEM/root via Backblaze", tags: [ "mailing-list", "x_refsource_FULLDISC", ], url: "http://seclists.org/fulldisclosure/2020/Dec/55", }, { name: "20201229 Re: [FD] CVE-2020-8150 - Remote Code Execution as SYSTEM/root via Backblaze", tags: [ "mailing-list", "x_refsource_FULLDISC", ], url: "http://seclists.org/fulldisclosure/2020/Dec/57", }, { name: "20201229 Re: CVE-2020-8150 - Remote Code Execution as SYSTEM/root via Backblaze", tags: [ "mailing-list", "x_refsource_FULLDISC", ], url: "http://seclists.org/fulldisclosure/2020/Dec/58", }, ], x_legacyV4Record: { CVE_data_meta: { ASSIGNER: "support@hackerone.com", ID: "CVE-2020-8150", STATE: "PUBLIC", }, affects: { vendor: { vendor_data: [ { product: { product_data: [ { product_name: "Nextcloud Server", version: { version_data: [ { version_value: "19.0.2", }, ], }, }, ], }, vendor_name: "n/a", }, ], }, }, data_format: "MITRE", data_type: "CVE", data_version: "4.0", description: { description_data: [ { lang: "eng", value: "A cryptographic issue in Nextcloud Server 19.0.1 allowed an attacker to downgrade the encryption scheme and break the integrity of encrypted files.", }, ], }, problemtype: { problemtype_data: [ { description: [ { lang: "eng", value: "Cryptographic Issues - Generic (CWE-310)", }, ], }, ], }, references: { reference_data: [ { name: "https://hackerone.com/reports/742588", refsource: "MISC", url: "https://hackerone.com/reports/742588", }, { name: "https://nextcloud.com/security/advisory/?id=NC-SA-2020-039", refsource: "MISC", url: "https://nextcloud.com/security/advisory/?id=NC-SA-2020-039", }, { name: "20201225 Re: [FD] CVE-2020-8150 - Remote Code Execution as SYSTEM/root via Backblaze", refsource: "FULLDISC", url: "http://seclists.org/fulldisclosure/2020/Dec/55", }, { name: "20201229 Re: [FD] CVE-2020-8150 - Remote Code Execution as SYSTEM/root via Backblaze", refsource: "FULLDISC", url: "http://seclists.org/fulldisclosure/2020/Dec/57", }, { name: "20201229 Re: CVE-2020-8150 - Remote Code Execution as SYSTEM/root via Backblaze", refsource: "FULLDISC", url: "http://seclists.org/fulldisclosure/2020/Dec/58", }, ], }, }, }, }, cveMetadata: { assignerOrgId: "36234546-b8fa-4601-9d6f-f4e334aa8ea1", assignerShortName: "hackerone", cveId: "CVE-2020-8150", datePublished: "2020-11-09T14:19:42", dateReserved: "2020-01-28T00:00:00", dateUpdated: "2024-08-04T09:48:25.666Z", state: "PUBLISHED", }, dataType: "CVE_RECORD", dataVersion: "5.1", "vulnerability-lookup:meta": { fkie_nvd: { configurations: "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"19.0.2\", \"matchCriteriaId\": \"DC2E71AB-4078-49DD-B276-7CC5990A792B\"}]}]}]", descriptions: "[{\"lang\": \"en\", \"value\": \"A cryptographic issue in Nextcloud Server 19.0.1 allowed an attacker to downgrade the encryption scheme and break the integrity of encrypted files.\"}, {\"lang\": \"es\", \"value\": \"Un problema criptogr\\u00e1fico en Nextcloud Server versi\\u00f3n 19.0.1, permiti\\u00f3 a un atacante degradar el esquema de cifrado y romper la integridad de los archivos cifrados\"}]", id: "CVE-2020-8150", lastModified: "2024-11-21T05:38:23.413", metrics: "{\"cvssMetricV31\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:N\", \"baseScore\": 4.1, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"LOCAL\", \"attackComplexity\": \"HIGH\", \"privilegesRequired\": \"HIGH\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"HIGH\", \"availabilityImpact\": \"NONE\"}, \"exploitabilityScore\": 0.5, \"impactScore\": 3.6}], \"cvssMetricV2\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"2.0\", \"vectorString\": \"AV:L/AC:M/Au:N/C:N/I:P/A:N\", \"baseScore\": 1.9, \"accessVector\": \"LOCAL\", \"accessComplexity\": \"MEDIUM\", \"authentication\": \"NONE\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"PARTIAL\", \"availabilityImpact\": \"NONE\"}, \"baseSeverity\": \"LOW\", \"exploitabilityScore\": 3.4, \"impactScore\": 2.9, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"obtainUserPrivilege\": false, \"obtainOtherPrivilege\": false, \"userInteractionRequired\": false}]}", published: "2020-11-09T15:15:13.443", references: "[{\"url\": \"http://seclists.org/fulldisclosure/2020/Dec/55\", \"source\": \"support@hackerone.com\", \"tags\": [\"Mailing List\", \"Third Party Advisory\"]}, {\"url\": \"http://seclists.org/fulldisclosure/2020/Dec/57\", \"source\": \"support@hackerone.com\", \"tags\": [\"Mailing List\", \"Third Party Advisory\"]}, {\"url\": \"http://seclists.org/fulldisclosure/2020/Dec/58\", \"source\": \"support@hackerone.com\", \"tags\": [\"Mailing List\", \"Third Party Advisory\"]}, {\"url\": \"https://hackerone.com/reports/742588\", \"source\": \"support@hackerone.com\", \"tags\": [\"Exploit\", \"Third Party Advisory\"]}, {\"url\": \"https://nextcloud.com/security/advisory/?id=NC-SA-2020-039\", \"source\": \"support@hackerone.com\", \"tags\": [\"Vendor Advisory\"]}, {\"url\": \"http://seclists.org/fulldisclosure/2020/Dec/55\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Mailing List\", \"Third Party Advisory\"]}, {\"url\": \"http://seclists.org/fulldisclosure/2020/Dec/57\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Mailing List\", \"Third Party Advisory\"]}, {\"url\": \"http://seclists.org/fulldisclosure/2020/Dec/58\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Mailing List\", \"Third Party Advisory\"]}, {\"url\": \"https://hackerone.com/reports/742588\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Exploit\", \"Third Party Advisory\"]}, {\"url\": \"https://nextcloud.com/security/advisory/?id=NC-SA-2020-039\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Vendor Advisory\"]}]", sourceIdentifier: "support@hackerone.com", vulnStatus: "Modified", weaknesses: "[{\"source\": \"support@hackerone.com\", \"type\": \"Secondary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-310\"}]}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-311\"}]}]", }, nvd: "{\"cve\":{\"id\":\"CVE-2020-8150\",\"sourceIdentifier\":\"support@hackerone.com\",\"published\":\"2020-11-09T15:15:13.443\",\"lastModified\":\"2024-11-21T05:38:23.413\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A cryptographic issue in Nextcloud Server 19.0.1 allowed an attacker to downgrade the encryption scheme and break the integrity of encrypted files.\"},{\"lang\":\"es\",\"value\":\"Un problema criptográfico en Nextcloud Server versión 19.0.1, permitió a un atacante degradar el esquema de cifrado y romper la integridad de los archivos cifrados\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:N\",\"baseScore\":4.1,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":0.5,\"impactScore\":3.6}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:L/AC:M/Au:N/C:N/I:P/A:N\",\"baseScore\":1.9,\"accessVector\":\"LOCAL\",\"accessComplexity\":\"MEDIUM\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"NONE\"},\"baseSeverity\":\"LOW\",\"exploitabilityScore\":3.4,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"support@hackerone.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-310\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-311\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"19.0.2\",\"matchCriteriaId\":\"DC2E71AB-4078-49DD-B276-7CC5990A792B\"}]}]}],\"references\":[{\"url\":\"http://seclists.org/fulldisclosure/2020/Dec/55\",\"source\":\"support@hackerone.com\",\"tags\":[\"Mailing 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Advisory\"]},{\"url\":\"http://seclists.org/fulldisclosure/2020/Dec/58\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://hackerone.com/reports/742588\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"Third Party Advisory\"]},{\"url\":\"https://nextcloud.com/security/advisory/?id=NC-SA-2020-039\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]}]}}", }, }
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Sightings
Author | Source | Type | Date |
---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
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- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
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