CVE-2017-18883

An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2, when serving as an OAuth 2.0 Service Provider. There is low entropy for authorization data.

CVSS v3 9.1 CRITICAL
CVSS v2.0 6.4 MEDIUM

9.1^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

6.4^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 10.0 / Impact : 4.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact NONE

References

Link	Resource
https://mattermost.com/security-updates/	Vendor Advisory
https://mattermost.com/security-updates/	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:mattermost:mattermost_server::::::::
	cpe:2.3:a:mattermost:mattermost_server::::::::
	cpe:2.3:a:mattermost:mattermost_server:4.3.0:rc1::::::
	cpe:2.3:a:mattermost:mattermost_server:4.3.0:rc2::::::
	cpe:2.3:a:mattermost:mattermost_server:4.3.0:rc3::::::
	cpe:2.3:a:mattermost:mattermost_server:4.3.0:rc4::::::

History

21 Nov 2024, 03:21

Type	Values Removed	Values Added
References	~~() https://mattermost.com/security-updates/ - Vendor Advisory~~	() https://mattermost.com/security-updates/ - Vendor Advisory

Information

Published : 2020-06-19 19:15

Updated : 2024-11-21 03:21

NVD link : CVE-2017-18883

Mitre link : CVE-2017-18883

CVE.ORG link : CVE-2017-18883

JSON object : View

Products Affected

mattermost

mattermost_server

CWE

CWE-331

Insufficient Entropy

{"id": "CVE-2017-18883", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 6.4, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:N", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "NONE", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 4.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.1, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.2, "exploitabilityScore": 3.9}]}, "published": "2020-06-19T19:15:10.310", "references": [{"url": "https://mattermost.com/security-updates/", "tags": ["Vendor Advisory"], "source": "cve@mitre.org"}, {"url": "https://mattermost.com/security-updates/", "tags": ["Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-331"}]}], "descriptions": [{"lang": "en", "value": "An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2, when serving as an OAuth 2.0 Service Provider. There is low entropy for authorization data."}, {"lang": "es", "value": "Se detect\u00f3 un problema en Mattermost Server versiones anteriores a 4.3.0, 4.2.1 y 4.1.2, cuando sirve como proveedor de servicios OAuth versi\u00f3n 2.0. Hay poca entrop\u00eda para los datos de autorizaci\u00f3n"}], "lastModified": "2024-11-21T03:21:10.410", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "72250CFB-47F9-40AE-BBD0-179D27CCF49D", "versionEndExcluding": "4.1.2"}, {"criteria": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7FE7E6F1-5B34-4D19-8B93-ED2E9EFFCAF3", "versionEndExcluding": "4.2.1", "versionStartIncluding": "4.2.0"}, {"criteria": "cpe:2.3:a:mattermost:mattermost_server:4.3.0:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FB71A82C-2F6A-49EC-A541-1600304F4D37"}, {"criteria": "cpe:2.3:a:mattermost:mattermost_server:4.3.0:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "91E5A299-021B-451B-95E2-4DC2DD6FF50B"}, {"criteria": "cpe:2.3:a:mattermost:mattermost_server:4.3.0:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "471DFF36-36F3-4904-B5E9-091C259181A6"}, {"criteria": "cpe:2.3:a:mattermost:mattermost_server:4.3.0:rc4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A8772DEC-C002-443E-9609-1CC2A6FD8037"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}