{"id":"CVE-2024-6592","aliases":["EUVD-2024-47657","GHSA-fgxf-657w-ggqj"],"status":"published","title":"WatchGuard Firebox Single Sign-On Agent Protocol Authorization Bypass","description":"An incorrect authorization vulnerability in the protocol communication between the WatchGuard Authentication Gateway (aka Single Sign-On Agent) on Windows and the WatchGuard Single Sign-On Client on Windows and MacOS allows an attacker with network access to forge communications to affected components.\n\nIn the event an attacker has already gained network access, they could exploit this vulnerability to retrieve authenticated usernames and group memberships from the Single Sign-On Agent or send arbitrary account and group information to the Single Sign-On Agent for their host. This vulnerability cannot be used by an attacker to gain access to user credentials.","severity":{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.01168,"percentile":0.67596,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-306","CWE-863"],"published":"2024-09-25T11:16:01Z","modified":"2026-08-08T00:32:15Z","exploits":[{"source":"pocgithub","id":"RedTeamPentesting/watchguard-sso-client","title":"RedTeamPentesting/watchguard-sso-client","date":"2024-09-17","url":"https://github.com/RedTeamPentesting/watchguard-sso-client"}],"products":[{"vendor":"watchguard","product":"authentication_gateway"},{"vendor":"watchguard","product":"single_sign-on_client"},{"vendor":"watchguard","product":"sso agent"},{"vendor":"watchguard","product":"sso client"}],"references":[{"url":"https://www.redteam-pentesting.de/advisories/rt-sa-2024-006","tags":["technical-description"]},{"url":"https://psirt.watchguard.com/CVE-2024-6592","tags":["vendor-advisory"]},{"url":"https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2024-00014","tags":["vendor-advisory","Mitigation","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-6592"},{"url":"https://github.com/advisories/GHSA-fgxf-657w-ggqj"}],"sources":{"cve":[{"id":"CVE-2024-6592","title":"WatchGuard Firebox Single Sign-On Agent Protocol Authorization Bypass","description":"An incorrect authorization vulnerability in the protocol communication between the WatchGuard Authentication Gateway (aka Single Sign-On Agent) on Windows and the WatchGuard Single Sign-On Client on Windows and MacOS allows an attacker with network access to forge communications to affected components.\n\nIn the event an attacker has already gained network access, they could exploit this vulnerability to retrieve authenticated usernames and group memberships from the Single Sign-On Agent or send arbitrary account and group information to the Single Sign-On Agent for their host. This vulnerability cannot be used by an attacker to gain access to user credentials.","status":"published","published":"2024-09-25T11:16:01.32Z","modified":"2026-08-07T23:46:43.531Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","level":"critical","assessor":"cna"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T14:34:10.961618Z"}],"euvd":[{"id":"EUVD-2024-47657","description":"An incorrect authorization vulnerability in the protocol communication between the WatchGuard Authentication Gateway (aka Single Sign-On Agent) on Windows and the WatchGuard Single Sign-On Client on Windows and MacOS allows an attacker with network access to forge communications to affected components.\n\nIn the event an attacker has already gained network access, they could exploit this vulnerability to retrieve authenticated usernames and group memberships from the Single Sign-On Agent or send arbitrary account and group information to the Single Sign-On Agent for their host. This vulnerability cannot be used by an attacker to gain access to user credentials.","status":"published","published":"2024-09-25T11:16:01Z","modified":"2026-08-07T23:46:43Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","level":"critical"}],"updated_at":"2026-11-02T18:02:06.573967Z"}],"ghsa":[{"id":"GHSA-fgxf-657w-ggqj","title":"Incorrect Authorization vulnerability in the protocol communication between the WatchGuard...","description":"Incorrect Authorization vulnerability in the protocol communication between the WatchGuard Authentication Gateway (aka Single Sign-On Agent) on Windows and the WatchGuard Single Sign-On Client on Windows and MacOS allows Authentication Bypass.This issue affects the Authentication Gateway: through 12.10.2; Windows Single Sign-On Client: through 12.7; MacOS Single Sign-On Client: through 12.5.4.","status":"published","published":"2024-09-25T12:30:40Z","modified":"2026-08-08T00:32:15Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"critical"},{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical"}],"cwes":["CWE-306","CWE-863"],"updated_at":"2026-11-02T15:10:12.306859Z"}],"nvd":[{"id":"CVE-2024-6592","description":"An incorrect authorization vulnerability in the protocol communication between the WatchGuard Authentication Gateway (aka Single Sign-On Agent) on Windows and the WatchGuard Single Sign-On Client on Windows and MacOS allows an attacker with network access to forge communications to affected components.\n\nIn the event an attacker has already gained network access, they could exploit this vulnerability to retrieve authenticated usernames and group memberships from the Single Sign-On Agent or send arbitrary account and group information to the Single Sign-On Agent for their host. This vulnerability cannot be used by an attacker to gain access to user credentials.","status":"published","published":"2024-09-25T12:15:05.027Z","modified":"2026-08-08T00:16:33.227Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"critical","assessor":"secondary"},{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical","assessor":"primary"}],"cwes":["CWE-306","CWE-863"],"updated_at":"2026-11-02T14:10:29.044588Z"}]}}