CVE-2026-84731: Nutanix Acropolis Operating System (AOS), заобикаляне

Описание

Оригинално описание

An unauthenticated remote attacker can bypass authentication and gain full access to administrative API endpoints in Nutanix Prism Element by including a crafted internal management HTTP header. The vulnerability is caused by a misconfiguration in the application's authentication filters. Consequently, the server responds with a Set-Cookie header containing a valid JSESSIONID. This session cookie decodes to a JSON Web Token (JWT) granting maximum cluster administrative privileges. Successful exploitation allows the attacker to execute root-level commands on all Controller VMs (CVMs) in the cluster, leading to complete cluster destruction and unauthorized access to VM memory and virtual disks.

Засегнати продукти

• Nutanix Acropolis Operating System (AOS): преди 7.3.1.18; 7.5 преди 7.5.2; 7.6 преди 7.6.0.8

Вид слабост

• CWE-306 Липсваща автентикация за критична функционалност
• CWE-290 Заобикаляне на автентикация чрез подправяне
• CWE-302 Заобикаляне на автентикация чрез подправени неизменими данни

История

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-84731
• https://nvd.nist.gov/vuln/detail/CVE-2026-84731
• https://download.nutanix.com/alerts/Security_Advisory_0058.pdf
• https://portal.nutanix.com/page/documents/list?type=software&filterKey=software&filterVal=AOS
• https://www.nutanix.com/support