CVE-2023-23364 in Multimedia Console
Summary
by MITRE • 09/22/2023
A buffer copy without checking size of input vulnerability has been reported to affect QNAP operating systems. If exploited, the vulnerability possibly allows remote users to execute code via unspecified vectors.
We have already fixed the vulnerability in the following versions: Multimedia Console 2.1.1 ( 2023/03/29 ) and later Multimedia Console 1.4.7 ( 2023/03/20 ) and later
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Analysis
by VulDB Data Team • 10/14/2023
This vulnerability represents a classic buffer overflow condition that exists within the QNAP operating system implementations, specifically affecting the Multimedia Console application components. The flaw manifests as a failure to properly validate input size parameters during buffer copy operations, creating an exploitable condition that could enable remote code execution. Such vulnerabilities fall under the category of CWE-121, which describes stack-based buffer overflow conditions where insufficient bounds checking allows attackers to overwrite adjacent memory locations. The vulnerability affects multiple versions of QNAP's multimedia console software, with remediation provided in specific release versions that address the underlying buffer management issues.
The technical exploitation of this vulnerability occurs when remote attackers send specially crafted input data to the affected QNAP systems through unspecified network vectors. The lack of input size validation means that malicious actors can potentially overflow buffers allocated for data processing, leading to arbitrary code execution capabilities. This type of vulnerability aligns with ATT&CK technique T1059 which describes the use of command and scripting interpreters for execution, as successful exploitation would likely involve injecting and executing malicious code within the system environment. The buffer overflow could potentially allow attackers to gain elevated privileges, manipulate system processes, or establish persistent access points within the network infrastructure.
The operational impact of this vulnerability extends beyond simple code execution capabilities to encompass potential system compromise and data integrity threats. Organizations utilizing affected QNAP systems face significant risk of unauthorized access, data exfiltration, and system disruption. The vulnerability affects multimedia console functionality specifically, which suggests it may be triggered through media processing operations or network-based media streaming services. Attackers could leverage this weakness to gain control over network-attached storage systems, potentially accessing sensitive organizational data stored on these devices. The remote exploitation capability means that attackers need not be physically present within the network perimeter, making the vulnerability particularly dangerous for enterprise environments.
Organizations should prioritize immediate remediation by upgrading to the specified fixed versions of Multimedia Console including version 2.1.1 released March 29, 2023, and version 1.4.7 released March 20, 2023. Security teams should conduct thorough vulnerability assessments to identify all affected systems within their infrastructure and implement network segmentation to limit potential attack vectors. Additional mitigations include implementing network-based intrusion detection systems to monitor for suspicious traffic patterns associated with buffer overflow exploitation attempts, and establishing robust patch management procedures to ensure timely deployment of security updates. The remediation process should also involve validating system integrity through checksum verification and conducting security audits to confirm that no exploitation attempts have occurred prior to patch deployment.