CVE-2026-102241 in NAP930
Summary
by MITRE • 09/29/2026
A vulnerability was determined in Netcore NAP930 0.1.241010.141410. This vulnerability affects unknown code of the file /lib/functions/backup_common.sh of the component Backup/Restore. This manipulation of the argument aes_pass causes use of hard-coded cryptographic key
. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.
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Analysis
by VulDB Data Team • 09/29/2026
The vulnerability identified within Netcore NAP930 firmware version 0.1.241010.141410 represents a critical security flaw rooted in the improper handling of cryptographic parameters during backup and restore operations. Specifically, the defect resides in the /lib/functions/backup_common.sh script, which is responsible for managing data integrity and confidentiality when users initiate system backups or restores. The core technical issue involves the manipulation of the aes_pass argument, where the application fails to generate a unique, random encryption key for each session. Instead, it defaults to using a hard-coded cryptographic key that remains static across all instances of the device running this firmware version. This design choice fundamentally undermines the security model provided by Advanced Encryption Standard (AES) algorithms, as the secrecy of encrypted data relies entirely on the confidentiality of the key rather than just the algorithm itself.
From an industry standard perspective, this vulnerability aligns with CWE-321, which describes the use of a hard-coded cryptographic key. This category of weakness is particularly dangerous because it allows any attacker who discovers or reverse-engineers the firmware to decrypt sensitive data without needing authentication credentials for the specific device instance. Furthermore, the flaw can be classified under CWE-798, as it involves the use of hardcoded credentials that provide unauthorized access to system resources. The presence of a static key means that compromising one device potentially compromises all other devices with identical firmware builds, creating a systemic risk across large deployments rather than an isolated incident.
The operational impact of this vulnerability is severe due to its remote exploitability and public disclosure status. Since the attack can be initiated remotely, threat actors do not need physical access or prior local authentication to target the backup functionality. By interacting with the network interface that exposes the backup service, an attacker can trigger the encryption process using the known hard-coded key. This capability enables several malicious outcomes, including the interception and decryption of sensitive configuration files, user data, and potentially credentials stored within the system backups. The public disclosure of this vulnerability significantly lowers the barrier to entry for attackers, as proof-of-concept exploits are available in the wild. Consequently, any Netcore NAP930 device running the affected firmware is immediately vulnerable to exploitation by automated scanning tools or targeted attacks that leverage publicly known techniques.
The lack of vendor response further exacerbates the risk profile associated with this flaw. When vendors fail to acknowledge or patch disclosed vulnerabilities, organizations are left without official mitigation strategies such as updated firmware binaries or security advisories detailing workarounds. This silence forces system administrators and network operators to rely on defensive measures implemented at the infrastructure level rather than correcting the root cause within the application code. The absence of a vendor-provided fix means that the vulnerability remains persistent until users manually intervene, which is often impractical in large-scale IoT or networking deployments where automated updates are standard practice but currently unavailable for this specific flaw.
To mitigate the risks associated with CVE details pertaining to hard-coded keys and remote exploitation, immediate defensive actions must be taken at the network perimeter since patching is not an option provided by the vendor. Network segmentation should be enforced to restrict access to the backup service interfaces from untrusted networks or the public internet. Access Control Lists (ATT&CK T1078) can be configured on firewalls and routers to allow only specific, authorized IP addresses to communicate with the device's management ports related to backup functions. Additionally, enabling strict input validation at the gateway level can help prevent malformed requests that might attempt to exploit the aes_pass parameter manipulation. Monitoring network traffic for unusual patterns associated with backup service interactions is also recommended to detect potential exploitation attempts in real-time.
Long-term remediation requires organizational policy changes regarding vendor selection and firmware lifecycle management. Organizations should prioritize vendors who demonstrate a commitment to timely security updates and transparent vulnerability disclosure processes. In the interim, if the Netcore NAP930 devices are not essential for critical operations, decommissioning them or replacing them with secure alternatives is the most effective way to eliminate this risk vector entirely. Until such hardware replacements occur, treating these devices as untrusted on any network segment they reside in is crucial. Security teams should also conduct regular audits of third-party components and scripts within embedded systems to identify similar hard-coded secrets before they are deployed into production environments, ensuring that future implementations adhere to CWE-798 best practices by generating unique keys per session or device instance using secure random number generators.