CVE-2026-102255 in SMA1000
Summary
by MITRE • 10/07/2026
A Pre-authentication SSRF vulnerability exists in the SMA1000 Appliance Work Place interface due to an unintended alternate access path. By abusing this path, a remote unauthenticated attacker could potentially exploit this vulnerability to direct the appliance to issue requests on their behalf and reach internal functionality and perform unauthorized operations.
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Analysis
by VulDB Data Team • 10/07/2026
The identified security flaw represents a critical Server-Side Request Forgery (SSRF) vulnerability within the SMA1000 Appliance Work Place interface, specifically categorized under CWE-918 as SSRF: Server-Side Request Forgery. This weakness stems from an unintended alternate access path that bypasses standard authentication mechanisms, allowing for pre-authentication exploitation. The core technical issue lies in the application's failure to properly validate or restrict user-supplied input when constructing server-side requests. By leveraging this unauthenticated entry point, a remote attacker can manipulate the appliance into initiating HTTP or other network connections to arbitrary destinations controlled by the adversary rather than intended internal services. This lack of strict output encoding and destination validation enables the manipulation of backend systems that are typically isolated from direct external access.
From an operational perspective, the impact of this vulnerability is severe due to its pre-authentication nature. An unauthenticated attacker can exploit this flaw without needing valid credentials, significantly lowering the barrier for entry in most deployment scenarios. The ability to force the appliance to issue requests on behalf of the attacker allows for several malicious outcomes. These include scanning internal network segments to map out infrastructure, accessing sensitive administrative interfaces that are not exposed publicly but are reachable internally by the appliance, and potentially interacting with backend databases or API endpoints. This can lead to unauthorized data exfiltration, modification of critical system configurations, or further pivoting into deeper layers of the protected network environment. The vulnerability effectively neutralizes perimeter defenses by turning a trusted internal component into an active proxy for external attacks.
This type of exploitation aligns closely with MITRE ATT&CK techniques related to Discovery and Lateral Movement. Specifically, it relates to T1046 Network Service Scanning, where the attacker uses the compromised appliance to probe other services on the network. It also touches upon T1572 Protocol Tunneling if the SSRF is used to establish covert communication channels with external command-and-control servers by routing traffic through the vulnerable appliance. The presence of an alternate access path suggests a potential architectural oversight in how different service endpoints are secured and isolated from one another, highlighting gaps in defense-in-depth strategies where internal services should not be directly accessible via public-facing interfaces without rigorous authentication checks.
To mitigate this vulnerability, immediate remediation efforts must focus on restricting the input validation for any parameters that influence server-side requests. Developers should implement strict allow-listing of permitted destination hosts and ports to ensure that only legitimate internal services can be accessed. Additionally, enforcing authentication requirements before processing any request that involves outbound network connections is essential to close the pre-authentication gap. Network-level controls such as firewall rules or web application firewalls (WAF) can provide an additional layer of defense by blocking outbound requests from the appliance to unauthorized IP ranges or known malicious destinations. Regular security audits and penetration testing should be conducted to identify similar alternate access paths in other components of the SMA1000 system, ensuring that all interfaces adhere to the principle of least privilege and proper authentication enforcement.