{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2024-39839","assignerOrgId":"9302f53e-dde5-4bf3-b2f2-a83f91ac0eee","state":"PUBLISHED","assignerShortName":"Mattermost","dateReserved":"2024-07-23T18:35:14.805Z","datePublished":"2024-08-01T14:05:07.339Z","dateUpdated":"2024-08-01T18:04:42.351Z"},"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Mattermost","vendor":"Mattermost","versions":[{"status":"affected","version":"9.9.0"},{"lessThanOrEqual":"9.5.6","status":"affected","version":"9.5.0","versionType":"semver"},{"lessThanOrEqual":"9.7.5","status":"affected","version":"9.7.0","versionType":"semver"},{"lessThanOrEqual":"9.8.1","status":"affected","version":"9.8.0","versionType":"semver"},{"status":"unaffected","version":"9.10.0"},{"status":"unaffected","version":"9.9.1"},{"status":"unaffected","version":"9.5.7"},{"status":"unaffected","version":"9.7.6"},{"status":"unaffected","version":"9.8.2"}]}],"credits":[{"lang":"en","type":"finder","value":"Juho Forsén"}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>Mattermost versions 9.9.x &lt;= 9.9.0, 9.5.x &lt;= 9.5.6, 9.7.x &lt;= 9.7.5, 9.8.x &lt;= 9.8.1 fail to disallow&nbsp;users to set their own remote username, when shared channels were enabled, which allows a user on a remote to set their remote username prop to an arbitrary string, which would be then synced to the local server as long as the user hadn't been synced before.</p>"}],"value":"Mattermost versions 9.9.x <= 9.9.0, 9.5.x <= 9.5.6, 9.7.x <= 9.7.5, 9.8.x <= 9.8.1 fail to disallow users to set their own remote username, when shared channels were enabled, which allows a user on a remote to set their remote username prop to an arbitrary string, which would be then synced to the local server as long as the user hadn't been synced before."}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.3,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-284","description":"CWE-284: Improper Access Control","lang":"en","type":"CWE"}]}],"providerMetadata":{"orgId":"9302f53e-dde5-4bf3-b2f2-a83f91ac0eee","shortName":"Mattermost","dateUpdated":"2024-08-01T14:05:07.339Z"},"references":[{"url":"https://mattermost.com/security-updates"}],"solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>Update Mattermost to versions 9.10.0, 9.9.1, 9.5.7, 9.7.6, 9.8.2 or higher.</p>"}],"value":"Update Mattermost to versions 9.10.0, 9.9.1, 9.5.7, 9.7.6, 9.8.2 or higher."}],"source":{"advisory":"MMSA-2024-00354","defect":["https://mattermost.atlassian.net/browse/MM-58574"],"discovery":"INTERNAL"},"title":"Remote username set to an arbitrary string by remote user","x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-08-01T18:04:29.704681Z","id":"CVE-2024-39839","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-08-01T18:04:42.351Z"}}]}}