{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-6594","assignerOrgId":"5d1c2695-1a31-4499-88ae-e847036fd7e3","state":"PUBLISHED","assignerShortName":"WatchGuard","dateReserved":"2024-07-09T02:09:05.229Z","datePublished":"2024-09-25T11:22:45.610Z","dateUpdated":"2026-08-07T23:42:26.069Z"},"containers":{"cna":{"providerMetadata":{"orgId":"5d1c2695-1a31-4499-88ae-e847036fd7e3","shortName":"WatchGuard","dateUpdated":"2026-08-07T23:42:26.069Z"},"title":"WatchGuard Firebox Single Sign-On Client Denial-of-Service","descriptions":[{"lang":"en","value":"Improper Handling of Exceptional Conditions vulnerability in the WatchGuard Single Sign-On Client on Windows causes the client to crash while handling malformed commands. An attacker with network access to the client could create a denial of service condition for the Single Sign-On service by repeatedly issuing malformed commands."}],"affected":[{"vendor":"WatchGuard","product":"SSO Client","versions":[{"status":"affected","version":"12.0","versionType":"semver","lessThanOrEqual":"12.7"}],"defaultStatus":"unaffected","platforms":["Windows"]}],"references":[{"url":"https://www.redteam-pentesting.de/advisories/rt-sa-2024-008","tags":["technical-description"]},{"url":"https://psirt.watchguard.com/CVE-2024-6594","tags":["vendor-advisory"]},{"url":"https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2024-00016","tags":["vendor-advisory"]}],"cpeApplicability":[{"operator":"OR","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:watchguard:sso_client:*:*:*:*:*:*:*:*","versionStartIncluding":"12.0","versionEndIncluding":"12.7"}]}]}],"metrics":[{"cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","baseScore":8.7,"baseSeverity":"HIGH"}}],"problemTypes":[{"descriptions":[{"lang":"en","description":"CWE-755","type":"CWE","cweId":"CWE-755"}]}],"workarounds":[{"lang":"en","value":"An attacker must have already established network access to exploit this vulnerability. WatchGuard recommends using Windows Firewall rules to restrict TCP port 4116 network access to the Single Sign-On Client to only allow connections from the Authentication Gateway (SSO Agent). Windows administrators can use Group Policy objects to add Windows firewall rules to their endpoints."}],"exploits":[{"lang":"en","value":"WatchGuard is not aware of any exploitation of this vulnerability in the wild."}],"datePublic":"2024-09-25T11:22:45.610Z"},"adp":[{"affected":[{"vendor":"watchguard","product":"single_sign-on_client","cpes":["cpe:2.3:a:watchguard:single_sign-on_client:*:*:*:*:*:windows:*:*"],"defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"12.7","versionType":"semver"}]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-09-25T13:44:40.431549Z","id":"CVE-2024-6594","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"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":"2024-09-25T14:30:29.866Z"}}]}}