CVE-2026-21902
CriticalSummary
Podatność związana z nieprawidłowym przypisaniem uprawnień do krytycznego zasobu w frameworku detekcji anomalii On-Box w systemie Junos OS Evolved na serii PTX pozwala nieautoryzowanemu atakującemu z sieci na wykonanie kodu jako root. Usługa ta powinna być dostępna tylko dla wewnętrznych procesów, a nie przez porty wystawione na zewnątrz.
Risk Assessment
Dzięki możliwości dostępu i manipulacji tą usługą, zdalny atakujący może przejąć pełną kontrolę nad urządzeniem, co stanowi poważne zagrożenie dla bezpieczeństwa organizacji.
Recommendation
Zaleca się aktualizację do wersji 25.4R1-S1-EVO lub 25.4R2-EVO, aby zniwelować tę podatność. Należy również rozważyć ograniczenie dostępu do usługi tylko dla wewnętrznych procesów.
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Original NVD description (English source)
An Incorrect Permission Assignment for Critical Resource vulnerability in the On-Box Anomaly detection framework of Juniper Networks Junos OS Evolved on PTX Series allows an unauthenticated, network-based attacker to execute code as root. The On-Box Anomaly detection framework should only be reachable by other internal processes over the internal routing instance, but not over an externally exposed port. With the ability to access and manipulate the service to execute code as root a remote attacker can take complete control of the device. Please note that this service is enabled by default as no specific configuration is required. This issue affects Junos OS Evolved on PTX Series: * 25.4 versions before 25.4R1-S1-EVO, 25.4R2-EVO. This issue does not affect Junos OS Evolved versions before 25.4R1-EVO. This issue does not affect Junos OS.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

