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DETECTION OVERVIEW
Risk Factors
Attackers must have write permission for any NFS share on the targeted system. However, authentication is not required if the NFS share is configured with anonymous write access. If the exploit is successful, the attacker can cause a denial of service (DoS) or gain control of the Windows Server. This exploit is wormable between machines hosting writable NFS shares.
Category
Windows NFS v3 is a file server that can be deployed in environments that include Windows and Linux. Windows NFS v3 has a vulnerability in how it validates field size and buffer values for certain NFS requests. An attacker can create an NFS request with manipulated size and buffer values that result in a heap overflow in the NFS driver (nfssvr.sys). The heap overflow can lead to a denial of service (DoS) or remote code execution (RCE).
Network analysis and visibility solutions remain underrepresented in enterprises. Find out why in this preview of a new Wave report.
ExtraHop® Named a Leader in First-Ever Gartner® Magic Quadrant™ for Network Detection and Response
Visit this resource for more information.
This analysis exposes the critical link between an organization's lack of internal visibility and the escalating cost of compromise, demanding an urgent re-evaluation of how core business assets are protected.
Learn why you need to be wary of the claims certain network detection and response providers make about their coverage against the MITRE ATT&CK framework.
Learn how NDR from RevealX helps security teams detect and investigate more adversary TTPs in the MITRE ATT&CK framework than rule-based tools.
