CVE-2010-1147 in Open Direct Connect Hub
Summary
by MITRE
Stack-based buffer overflow in Open Direct Connect Hub (aka Open DC Hub or OpenDCHub) 0.8.1 allows remote authenticated users to execute arbitrary code via a long MyINFO message.
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Analysis
by VulDB Data Team • 01/26/2025
The vulnerability identified as CVE-2010-1147 represents a critical stack-based buffer overflow flaw within Open Direct Connect Hub version 0.8.1, a popular file sharing application that operates within the direct connect network protocol ecosystem. This vulnerability specifically affects the handling of MyINFO messages, which are fundamental components of the direct connect protocol used for client identification and information exchange within the network. The flaw exists in the way the Open DC Hub software processes incoming MyINFO data structures, creating an exploitable condition that can be leveraged by remote attackers who have already established authentication credentials within the system.
The technical implementation of this vulnerability stems from inadequate input validation and bounds checking within the MyINFO message processing routine. When a remote authenticated user sends a specially crafted MyINFO message containing excessive data, the application fails to properly validate the message length before copying it into a fixed-size stack buffer. This classic buffer overflow condition allows an attacker to overwrite adjacent memory locations, potentially corrupting the stack frame and enabling arbitrary code execution. The vulnerability is particularly dangerous because it requires only authenticated access to the system, meaning that an attacker who has already gained legitimate credentials can exploit this flaw to escalate privileges or take complete control of the vulnerable service.
The operational impact of this vulnerability extends beyond simple privilege escalation, as it provides attackers with the capability to execute arbitrary code within the context of the Open DC Hub service. This could result in complete system compromise, data exfiltration, or the establishment of persistent backdoors within the network infrastructure. The attack vector is particularly concerning because it operates over the network protocol itself, making it difficult to detect through traditional network monitoring approaches. The vulnerability affects organizations that rely on Open DC Hub for file sharing operations, potentially exposing their entire network infrastructure to compromise. Security professionals should note that this vulnerability aligns with CWE-121 Stack-based Buffer Overflow, which is classified as a high-severity weakness in the Common Weakness Enumeration catalog, and it maps to attack techniques within the MITRE ATT&CK framework under the T1059.007 Execution via Command and Scripting Interpreter category.
Mitigation strategies for this vulnerability should include immediate patching of the Open DC Hub software to version 0.8.2 or later, which contains the necessary fixes for the buffer overflow condition. Organizations should also implement network segmentation to limit access to the Open DC Hub service, ensuring that only authorized users can establish connections. Additional defensive measures include implementing strict input validation at network boundaries, monitoring for anomalous MyINFO message patterns, and establishing robust access control policies to minimize the risk of unauthorized authenticated access. System administrators should also consider disabling unnecessary services and regularly updating all network infrastructure components to prevent similar vulnerabilities from being exploited. The vulnerability serves as a reminder of the importance of proper input validation and memory management in network services, particularly those handling user-generated content within peer-to-peer and file sharing environments.