CVE-2024-48865 in QTS
Summary
by MITRE • 12/06/2024
An improper certificate validation vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow attackers with local network access to compromise the security of the system.
We have already fixed the vulnerability in the following versions: QTS 5.1.9.2954 build 20241120 and later QTS 5.2.2.2950 build 20241114 and later QuTS hero h5.1.9.2954 build 20241120 and later QuTS hero h5.2.2.2952 build 20241116 and later
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Analysis
by VulDB Data Team • 09/23/2025
This vulnerability represents a critical certificate validation flaw that undermines the cryptographic security mechanisms of QNAP operating systems. The improper certificate validation weakness allows attackers with local network access to bypass essential security checks that typically protect against man-in-the-middle attacks and unauthorized system compromise. Such vulnerabilities fall under the broader category of cryptographic failures and are particularly dangerous in network-attached storage environments where devices often serve as central repositories for sensitive data. The vulnerability affects multiple QNAP operating system variants including QTS and QuTS hero platforms, indicating a widespread impact across the company's product line.
The technical implementation of this flaw likely involves insufficient validation of SSL/TLS certificates during network communications or system authentication processes. Attackers can exploit this weakness by presenting forged certificates or manipulating certificate chains to establish unauthorized connections with QNAP devices. This type of vulnerability is particularly concerning because it requires minimal privileges for exploitation, as local network access is sufficient to carry out attacks. The vulnerability directly relates to CWE-295 which specifically addresses improper certificate validation and can be mapped to ATT&CK technique T1071.004 for application layer protocol: dns and T1566.001 for credential harvesting through phishing attacks that leverage compromised certificates.
The operational impact of this vulnerability extends beyond simple unauthorized access to potentially enabling full system compromise and data exfiltration. QNAP devices frequently store critical business and personal information making them attractive targets for attackers who can exploit this weakness to gain persistent access to network resources. The vulnerability's impact is particularly severe in enterprise environments where QNAP devices serve as network storage solutions and may be connected to internal networks. Organizations using affected versions of QNAP operating systems face increased risk of data breaches, system hijacking, and potential lateral movement within their network infrastructure.
Organizations should immediately upgrade to the patched versions specified in the advisory to mitigate this vulnerability. The affected versions include QTS 5.1.9.2954 build 20241120 and later, QTS 5.2.2.2950 build 20241114 and later, QuTS hero h5.1.9.2954 build 20241120 and later, and QuTS hero h5.2.2.2952 build 20241116 and later. System administrators should conduct thorough inventory checks to identify all affected devices and implement proper patch management procedures. Additional mitigations include network segmentation to limit local network access, monitoring for suspicious certificate-related activities, and implementing network intrusion detection systems to identify potential exploitation attempts. Security teams should also review existing certificate management policies and ensure proper certificate lifecycle management practices are in place to prevent similar issues in the future.