CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се по мрежата, без особени условия, без вход и след действие от потребителя.
- Експлоатация: няма данни за експлоатация
- Атаката не може да се автоматизира
Описание
Оригинално описание
MeshCentral 1.1.21 contains a cross-site WebSocket hijacking protection bypass vulnerability that allows unauthenticated remote attackers to hijack authenticated administrator sessions by exploiting an unconditional early return in the CheckWebServerOriginName() function within webserver.js when self-signed certificates are in use. Attackers can open cross-origin WebSocket connections to any of the twelve WebSocket endpoints, send crafted action commands to exfiltrate the server sessionKey used to sign session cookies, forge session tokens as arbitrary users, and gain full remote control of all managed devices governed by the MeshCentral instance.
Засегнати продукти
- Ylianst MeshCentral: 1.1.21
Вид слабост
История
- 30 юли 2026 Публикувано
Други уязвимости в Ylianst MeshCentral
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-66420
- https://nvd.nist.gov/vuln/detail/CVE-2026-66420
- https://github.com/Ylianst/MeshCentral/pull/7882
- https://github.com/Ylianst/MeshCentral/commit/f04c9f4
- https://github.com/Ylianst/MeshCentral
- https://www.vulncheck.com/advisories/meshcentral-cross-site-websocket-hijacking-via-origin-validation-bypass-on-self-signed-certificate-deployments