CVE-2018-21251

An issue was discovered in Mattermost Server before 5.2 and 5.1.1. Authorization could be bypassed if the channel name were not the same in the params and the body.

CVSS v3 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

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

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

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:5.2.0:rc1::::::
	cpe:2.3:a:mattermost:mattermost_server:5.2.0:rc2::::::
	cpe:2.3:a:mattermost:mattermost_server:5.2.0:rc3::::::
	cpe:2.3:a:mattermost:mattermost_server:5.2.0:rc4::::::
	cpe:2.3:a:mattermost:mattermost_server:5.2.0:rc5::::::
	cpe:2.3:a:mattermost:mattermost_server:5.2.0:rc6::::::

History

21 Nov 2024, 04:03

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 17:15

Updated : 2024-11-21 04:03

NVD link : CVE-2018-21251

Mitre link : CVE-2018-21251

CVE.ORG link : CVE-2018-21251

JSON object : View

Products Affected

mattermost

mattermost_server

CWE

CWE-862

Missing Authorization

{"id": "CVE-2018-21251", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 7.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "HIGH", "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": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}]}, "published": "2020-06-19T17:15:12.490", "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-862"}]}], "descriptions": [{"lang": "en", "value": "An issue was discovered in Mattermost Server before 5.2 and 5.1.1. Authorization could be bypassed if the channel name were not the same in the params and the body."}, {"lang": "es", "value": "Se detect\u00f3 un problema en Mattermost Server versiones anteriores a 5.2 y 5.1.1. La autorizaci\u00f3n podr\u00eda ser omitida si el nombre del canal no fuera el mismo en los par\u00e1metros y en el cuerpo"}], "lastModified": "2024-11-21T04:03:17.517", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "502A1D2D-28B3-487C-8AD4-33555F3E5662", "versionEndExcluding": "5.1.1"}, {"criteria": "cpe:2.3:a:mattermost:mattermost_server:5.2.0:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4278AE6D-09CF-4E82-B728-EDD1DFD6C4D0"}, {"criteria": "cpe:2.3:a:mattermost:mattermost_server:5.2.0:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "094E718B-6916-4473-A289-5CA8A1291969"}, {"criteria": "cpe:2.3:a:mattermost:mattermost_server:5.2.0:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6188A07E-A8A2-4573-9882-7FEF4316D688"}, {"criteria": "cpe:2.3:a:mattermost:mattermost_server:5.2.0:rc4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3D223D23-FE0B-44A5-AEC3-F6935AFFBC0D"}, {"criteria": "cpe:2.3:a:mattermost:mattermost_server:5.2.0:rc5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F3807BAF-FEE4-4A35-8CDA-E3BE991BC117"}, {"criteria": "cpe:2.3:a:mattermost:mattermost_server:5.2.0:rc6:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5821F28D-E507-446F-98CF-9284A588E8CA"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}