CVE-2026-104384 in Aquila
Summary
by MITRE • 10/28/2026
Insufficiently Protected Credentials in tunnel gateway and provisioning interfaces in EagleCloud Aquila versions through 2.6.7.2 on on-premises platforms allows unauthenticated remote attackers to escalate privileges via authentication abuse to access the access keys, secret keys, and deployment secrets
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Analysis
by VulDB Data Team • 10/28/2026
The vulnerability identified in EagleCloud Aquila versions prior to 2.6.7.2 represents a critical failure in credential management within both the tunnel gateway and provisioning interfaces deployed on on-premises platforms. This flaw stems from insufficient access controls that allow unauthenticated remote attackers to bypass authentication mechanisms entirely. By exploiting this deficiency, an attacker can gain unauthorized access to sensitive operational data, specifically including access keys, secret keys, and deployment secrets. The absence of proper authentication checks at these critical entry points effectively renders the security perimeter porous, allowing malicious actors to interact with administrative functions without valid credentials.
From a technical perspective, the core issue lies in the misconfiguration or implementation error within the API endpoints responsible for tunnel management and system provisioning. These interfaces are designed to handle sensitive configuration data and authentication tokens necessary for maintaining secure connections between cloud services and on-premises infrastructure. However, due to the lack of rigorous validation checks, these endpoints accept requests from any source without verifying the identity of the requester. This allows an attacker to directly query or modify system states, extract cryptographic materials such as secret keys used for encryption and signing, and retrieve deployment secrets that may contain database passwords, API tokens, or other high-value credentials required for further exploitation within the network environment.
The operational impact of this vulnerability is severe, primarily due to the potential for privilege escalation. Once an attacker obtains access keys and secret keys, they can impersonate legitimate services or administrators, effectively assuming elevated privileges within the EagleCloud ecosystem. This capability enables a wide range of malicious activities, including data exfiltration, lateral movement across internal networks, and complete compromise of the on-premises infrastructure. The exposure of deployment secrets further exacerbates the risk by potentially compromising downstream systems that rely on these credentials for automated operations, leading to widespread service disruption or unauthorized control over critical business applications hosted within the affected environment.
This vulnerability aligns with CWE-798, which describes the use of hardcoded or default credentials, and more specifically CWE-284 regarding improper access control. In terms of offensive security frameworks, this flaw facilitates techniques associated with MITRE ATT&CK T1078, Valid Accounts, as it allows attackers to establish persistent footholds using stolen credentials without detection by traditional authentication monitoring systems. It also relates to T1552, Unsecured Credentials, where the attacker gains access to sensitive information that can be leveraged for further attacks. The ability to escalate privileges through authentication abuse highlights a fundamental breakdown in the principle of least privilege and secure default configurations.
To mitigate this risk, organizations running EagleCloud Aquila versions up to 2.6.7.2 must immediately apply the vendor-provided patch or upgrade to version 2.6.7.3 or later where these access controls have been corrected. In addition to updating software, it is crucial to audit network segmentation policies to ensure that tunnel gateway and provisioning interfaces are not exposed directly to untrusted networks such as the public internet. Implementing strict firewall rules that restrict access to these administrative endpoints only from trusted management subnets can provide an additional layer of defense. Furthermore, organizations should rotate all potentially compromised credentials immediately upon confirmation of exposure or suspected exploitation, including any access keys and secret keys that may have been extracted during the vulnerability window. Regular security assessments focusing on authentication mechanisms and API security best practices are recommended to prevent similar misconfigurations in future deployments.