CVE-2010-2293 in Di-604
Summary
by MITRE
The Ping tools web interface in Dlink Di-604 router allows remote authenticated users to cause a denial of service via a large "ip textfield" size.
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Analysis
by VulDB Data Team • 01/01/2018
The vulnerability identified as CVE-2010-2293 affects the D-Link DI-604 router's web-based management interface, specifically within its ping utility functionality. This issue represents a classic buffer overflow condition that occurs when processing user-supplied input through the web interface. The flaw manifests when authenticated users submit unusually large values in the ip textfield parameter, which triggers an improper input validation mechanism within the router's firmware. The affected device operates with a web server component that processes ping requests through its graphical user interface, making this vulnerability accessible through normal network operations. The vulnerability is classified under CWE-121 as a stack-based buffer overflow, where insufficient bounds checking allows malicious input to overwrite adjacent memory locations. This type of vulnerability typically arises from inadequate input sanitization and validation procedures within embedded web applications. The attack vector requires only authenticated access to the device's web interface, making it particularly concerning as it can be exploited by users who have legitimate administrative credentials. The router's firmware fails to properly validate the length of input data submitted through the ping utility, creating a potential pathway for memory corruption that can lead to system instability. This vulnerability directly impacts the availability aspect of the system's security posture, as it can be leveraged to disrupt normal operations through denial of service attacks. The exploitation process involves submitting a ping request with an oversized ip field value, which causes the web server process to exceed its allocated buffer space. This results in memory corruption that typically manifests as application crashes or system hangs. The affected system architecture includes the router's embedded operating system and its web server implementation, which processes HTTP requests containing the vulnerable parameter. The authentication requirement provides a limited attack surface compared to unauthenticated vulnerabilities, yet still represents a significant risk for systems where administrative credentials may be compromised. This vulnerability aligns with ATT&CK technique T1499.004 which covers network denial of service attacks, specifically targeting network infrastructure devices. The impact extends beyond simple service disruption as memory corruption can potentially lead to more severe consequences including system reboot cycles or even potential privilege escalation in some cases. The vulnerability demonstrates poor input validation practices that are common in embedded systems where development resources are limited and security testing is often insufficient. The web interface components of network devices frequently lack proper bounds checking for user input, creating opportunities for buffer overflow exploits. This particular vulnerability affects a wide range of D-Link DI-604 router models and represents a fundamental flaw in the device's security architecture. The issue is particularly relevant in enterprise environments where such devices may be used as part of network infrastructure and where unauthorized access could compromise network availability. The vulnerability's exploitation requires minimal technical skill and can be accomplished through standard web browser interactions, making it accessible to a broad range of potential attackers. Network administrators should consider this vulnerability as part of their overall risk assessment for network infrastructure devices, particularly those running outdated firmware versions. The flaw highlights the importance of proper input validation and memory management in embedded systems, where resource constraints often lead to insufficient security controls. Organizations should implement network segmentation and access controls to limit the potential impact of such vulnerabilities, while also ensuring that all network devices receive timely firmware updates to address known security issues. The vulnerability serves as a reminder of the critical need for security testing in embedded network devices and the importance of maintaining current firmware versions to protect against known exploits.