Description

Missing authentication for critical function vulnerability exists in CPSL-08P1EN. If this vulnerability is exploited, an affected product may be operated by a remote attacker without authentication.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "9.8",
  "pubDate": "2026-09-14T07:17:20.660Z",
  "pubdate": "2026-09-14T07:17:20.660Z",
  "executiveSummary": "A critical security vulnerability involving missing authentication for a sensitive function has been identified in the CPSL-08P1EN device. This flaw allows an unauthenticated, remote attacker to interact with and command the device, bypassing established access control mechanisms.\nThe vulnerability type is categorized as Missing Authentication for a Critical Function. The primary impact involves the total compromise of device operability, enabling unauthorized parties to execute commands or modify operational states without providing valid credentials.\nThis vulnerability poses a significant risk to the integrity and availability of the CPSL-08P1EN. Because the device lacks internal authentication checks for specific functionalities, it is exposed to arbitrary command execution by any remote actor with network visibility.\nThere are no specific privilege requirements for exploitation, as the vulnerability resides at the function level where authentication is expected but entirely absent. Successful exploitation results in the remote attacker assuming control over the device functions, which may lead to unauthorized process disruption, reconfiguration, or industrial control interference depending on the application context.",
  "technicalDetails": "The root cause of this vulnerability is the absence of an authentication check within the critical function handlers of the CPSL-08P1EN firmware. In standard software development lifecycles, functions that influence device behavior, state, or sensitive data access must verify the identity and permissions of the requestor prior to execution. In this instance, the target function proceeds with execution based solely on the receipt of a network request, failing to validate session tokens, credentials, or HMAC signatures.\nThe attack flow begins with the discovery of the target endpoint, likely over an exposed network protocol. Because the function is not protected by an authentication gateway or middleware, the attacker does not need to perform a handshake or provide valid administrative credentials. Upon establishing a connection to the affected service, the attacker transmits a crafted command payload specifically designed to trigger the vulnerable function. The CPSL-08P1EN internal system interprets this payload as a legitimate command from an authorized source, bypassing any security gating mechanisms.\nThis missing authentication allows for remote, unauthorized command injection into the device control logic. Since there are no privilege requirements, an attacker can invoke these functions from a remote network location, assuming the device is reachable via standard TCP/IP communication. The lack of an access control list (ACL) or role-based access control (RBAC) ensures that any incoming packet directed at the vulnerable interface is processed by the function handler without obstruction.\nPost-exploitation impact is severe, as the attacker effectively gains the permissions of the device's main operational process. If the vulnerable function manages hardware controls, motor speed, or data throughput, the attacker can manipulate these parameters at will. This capability could lead to physical damage, unauthorized configuration changes, or a complete denial-of-service condition by crashing the process responsible for handling critical operational commands. Furthermore, because the interaction does not generate an authenticated audit log, identifying the origin of malicious commands is significantly more difficult, leaving the system in a state of compromised trust until remediation is applied."
}