CVE-2017-0104 in Windows
Summary
by MITRE
The iSNS Server service in Microsoft Windows Server 2008 SP2 and R2, Windows Server 2012 Gold and R2, and Windows Server 2016 allows remote attackers to issue malicious requests via an integer overflow, aka "iSNS Server Memory Corruption Vulnerability."
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Analysis
by VulDB Data Team • 01/27/2025
The CVE-2017-0104 vulnerability represents a critical memory corruption flaw within the iSNS Server service of Microsoft Windows operating systems. This vulnerability specifically affects Windows Server 2008 SP2 and R2, Windows Server 2012 Gold and R2, as well as Windows Server 2016 installations. The iSNS (Internet Storage Name Service) Server service functions as a critical component for managing storage network configurations, facilitating communication between storage devices and their network identifiers. The vulnerability arises from improper input validation within the service's request processing mechanism, creating an exploitable condition that can be leveraged by remote attackers to manipulate system memory through crafted malicious requests.
The technical exploitation of this vulnerability stems from an integer overflow condition that occurs when processing specific request parameters sent to the iSNS Server service. When the service receives a malformed request containing oversized integer values, the overflow condition causes unexpected behavior in memory allocation and handling routines. This integer overflow manifests as a memory corruption vulnerability classified under CWE-190, which specifically addresses integer overflow conditions that can lead to memory corruption. The flaw operates at the protocol level where the iSNS service processes incoming requests without adequate bounds checking, allowing attackers to craft payloads that exceed the expected integer limits and subsequently corrupt adjacent memory regions.
The operational impact of CVE-2017-0104 extends beyond simple service disruption to potentially enable arbitrary code execution within the context of the affected Windows Server environment. Attackers can leverage this vulnerability to execute malicious code on vulnerable systems, potentially escalating privileges and establishing persistent access to storage networks. The vulnerability's remote exploitability means that attackers do not require local system access or credentials to initiate the attack, making it particularly dangerous in enterprise environments where storage networks are critical infrastructure components. This flaw directly maps to ATT&CK technique T1059.001 for command and control execution, as successful exploitation could lead to the deployment of additional malicious payloads or backdoors within the storage network infrastructure.
Mitigation strategies for this vulnerability encompass both immediate patching and network-level defensive measures. Microsoft released security updates addressing this specific integer overflow condition, and system administrators should prioritize applying the relevant security patches from Microsoft's official update channels. Network segmentation and access control measures can help limit the attack surface by restricting unauthorized access to iSNS Server service endpoints. Additionally, implementing intrusion detection systems that monitor for suspicious iSNS protocol traffic patterns can help identify potential exploitation attempts. The vulnerability's classification under CWE-190 emphasizes the importance of robust input validation and integer overflow prevention techniques in service implementations, while its mapping to ATT&CK framework highlights the necessity of comprehensive defensive strategies that address both network-level and application-level security controls. Organizations should also consider implementing automated patch management systems to ensure timely deployment of security updates across all vulnerable server installations.