CVE-2008-0248 in Chaincast Proxymanager Activex Control
Summary
by MITRE
Buffer overflow in an ActiveX control in ccpm_0237.dll for StreamAudio ChainCast ProxyManager allows remote attackers to execute arbitrary code via a long URL argument to the InternalTuneIn method.
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Analysis
by VulDB Data Team • 10/14/2024
The vulnerability identified as CVE-2008-0248 represents a critical buffer overflow flaw within an ActiveX control component of the StreamAudio ChainCast ProxyManager software. This specific weakness resides in the ccpm_0237.dll library where the InternalTuneIn method fails to properly validate input parameters, creating an exploitable condition that can be leveraged by remote attackers to gain unauthorized code execution privileges. The vulnerability manifests when a maliciously crafted URL argument exceeding the allocated buffer space is passed to the InternalTuneIn method, triggering a classic stack-based buffer overflow scenario that can be exploited to overwrite critical memory locations.
The technical implementation of this vulnerability aligns with CWE-121, which describes stack-based buffer overflow conditions where insufficient bounds checking allows attackers to overwrite adjacent memory locations including return addresses and function pointers. This particular ActiveX control implementation demonstrates poor input validation practices where the URL parameter is directly copied into a fixed-size buffer without adequate length verification or sanitization. The flaw essentially allows an attacker to inject malicious code into the memory space of the vulnerable application process, potentially leading to complete system compromise.
From an operational perspective, this vulnerability presents a significant risk to organizations utilizing StreamAudio ChainCast ProxyManager software, particularly in environments where ActiveX controls are enabled and trusted by users. The remote exploit capability means that attackers can leverage this vulnerability from any network location without requiring physical access to the target system, making it particularly dangerous in enterprise environments where such media streaming applications might be deployed. The attack vector through URL arguments suggests that users could be compromised simply by visiting malicious websites or clicking on crafted links that trigger the vulnerable ActiveX control, leading to potential full system compromise and persistence mechanisms.
The exploitation of this vulnerability directly maps to several ATT&CK techniques including T1059 for command and scripting interpreter usage and T1068 for exploit for privilege escalation. Organizations should implement comprehensive mitigations including disabling ActiveX controls in web browsers, implementing proper input validation and bounds checking for all user-supplied data, and deploying network segmentation to limit exposure. Additionally, regular patch management processes should be enforced to ensure timely remediation of such vulnerabilities, while application whitelisting policies can help prevent execution of unauthorized ActiveX components. The vulnerability also highlights the importance of secure coding practices and input validation as fundamental security controls that should be integrated throughout the software development lifecycle to prevent similar issues from occurring in future implementations.