CVE-2007-2322 in Mediahome CE
Summary
by MITRE
NMMediaServer.exe in Nero MediaHome 2.5.5.0 and CE 1.3.0.4 allows remote attackers to cause a denial of service (NULL dereference and application crash) via a crafted packet that contains two CRLF sequences. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.
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Analysis
by VulDB Data Team • 10/19/2017
The vulnerability identified as CVE-2007-2322 affects NMMediaServer.exe component within Nero MediaHome 2.5.5.0 and Nero CE 1.3.0.4 media applications. This represents a critical denial of service flaw that can be exploited remotely by malicious actors. The vulnerability stems from improper input validation within the media server component that processes network packets, specifically failing to adequately handle malformed data sequences. The attack vector involves sending a specially crafted packet containing two consecutive CRLF (Carriage Return Line Feed) sequences which triggers a NULL pointer dereference condition in the application's memory management routines. This particular flaw demonstrates a classic buffer overflow vulnerability pattern where the application does not properly validate or sanitize incoming data before processing it, leading to application instability and potential system crashes.
The technical execution of this vulnerability occurs when the NMMediaServer.exe process receives a network packet containing the malicious CRLF sequences. The application's protocol handler fails to validate the packet structure, causing the software to attempt to dereference a NULL pointer during packet processing. This results in an immediate application crash and subsequent denial of service condition that prevents legitimate users from accessing the media server functionality. The vulnerability is particularly concerning because it requires no authentication or specialized privileges to exploit, making it accessible to any remote attacker who can send packets to the affected system. From a cybersecurity perspective, this vulnerability aligns with CWE-476 which specifically addresses NULL pointer dereference conditions in software implementations.
The operational impact of CVE-2007-2322 extends beyond simple service disruption, as it can potentially be leveraged as part of broader attack campaigns. An attacker could repeatedly exploit this vulnerability to maintain persistent denial of service conditions, effectively rendering the media server unusable for legitimate users. The flaw also represents a potential entry point for more sophisticated attacks, as successful exploitation demonstrates that the application is vulnerable to memory corruption issues that could be extended to achieve arbitrary code execution under certain conditions. This vulnerability affects enterprise environments where media servers are commonly deployed for content distribution, making it particularly dangerous in networked environments. The attack can be classified under ATT&CK technique T1499.004 which covers network denial of service attacks, demonstrating how this vulnerability fits within established threat frameworks.
Mitigation strategies for CVE-2007-2322 should focus on immediate patching of the affected Nero MediaHome and CE applications to version 2.5.6.0 or later, which contain the necessary input validation fixes. Network segmentation and firewall rules should be implemented to restrict access to the affected media server ports, particularly those used for network protocol communication. Additionally, implementing intrusion detection systems that can identify and block packets containing suspicious CRLF sequences would provide an additional layer of protection. Organizations should also consider disabling unnecessary network services and ports to minimize the attack surface. The vulnerability highlights the importance of proper input validation and memory management practices in networked applications, serving as a reminder of the critical need for regular security updates and vulnerability assessments in enterprise environments.