CVE-2024-53561 Overview
CVE-2024-53561 is a remote code execution (RCE) vulnerability affecting Arcadyan Meteor 2 CPE FG360 Firmware version ETV2.10. Attackers with authenticated access to the device can execute arbitrary code by sending a crafted request to the affected firmware. The flaw is classified under CWE-94: Improper Control of Generation of Code, indicating a code injection weakness in how the device processes input. Successful exploitation impacts confidentiality and integrity, and because the scope is changed, the attacker can affect resources beyond the vulnerable component itself.
Critical Impact
Authenticated attackers can execute arbitrary code on Arcadyan Meteor 2 CPE FG360 devices running Firmware ETV2.10, potentially pivoting into connected network segments.
Affected Products
- Arcadyan Meteor 2 CPE FG360
- Firmware version ETV2.10
- 5G Customer Premises Equipment (CPE) deployments referenced in the Arcadyan 5G Solution Overview
Discovery Timeline
- 2025-01-14 - CVE-2024-53561 published to NVD
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2024-53561
Vulnerability Analysis
The vulnerability resides in the Arcadyan Meteor 2 CPE FG360 firmware ETV2.10 request-handling logic. The device fails to properly control the generation of code when processing attacker-supplied input, allowing arbitrary commands or code to be executed in the context of the firmware process. Because Arcadyan Meteor 2 CPE devices are network gateways, code execution on the appliance directly exposes the network segments behind it.
An attacker requires high privileges to reach the vulnerable endpoint, but no user interaction is needed. Once the request reaches the flawed handler, the payload is interpreted rather than treated as inert data. The changed scope in the CVSS vector indicates that consequences extend beyond the firmware itself and can reach downstream services and clients.
Root Cause
The root cause is improper control over code generation, mapped to CWE-94. User-controlled fields in an authenticated request path are incorporated into an execution context without sufficient neutralization. This pattern is common in embedded router firmware where CGI handlers or shell wrappers concatenate request parameters into system commands or evaluated expressions.
Attack Vector
The attack vector is network-based. An authenticated attacker sends a crafted HTTP or management-protocol request to the device. The malicious parameters flow into the vulnerable code-generation path and are executed by the firmware. A public proof-of-concept is published at the GitHub CVE-2024-53561 PoC repository, which documents the request structure required to trigger execution.
No verified exploit code is reproduced here. Refer to the linked PoC for technical request details.
Detection Methods for CVE-2024-53561
Indicators of Compromise
- Unexpected outbound connections initiated by the CPE management interface to unfamiliar IP addresses or command-and-control style endpoints.
- New or modified administrative accounts on the FG360 device, or unexplained changes to firmware configuration files.
- Anomalous HTTP POST requests to CPE management endpoints containing shell metacharacters, backticks, or encoded command sequences.
Detection Strategies
- Inspect management-plane traffic to the Arcadyan FG360 for request parameters containing operating-system command syntax or code-evaluation primitives.
- Correlate authenticated administrative sessions with subsequent process behavior on the device where firmware telemetry is available.
- Alert on lateral movement or scanning activity originating from CPE devices, since these devices should not initiate internal reconnaissance.
Monitoring Recommendations
- Forward CPE syslog and administrative access logs to a central SIEM for retention and correlation.
- Baseline normal management-plane traffic patterns and flag deviations in request size, frequency, or parameter content.
- Monitor the network segment behind each FG360 for unusual east-west traffic that may indicate post-exploitation pivoting.
How to Mitigate CVE-2024-53561
Immediate Actions Required
- Restrict access to the FG360 management interface to trusted administrative networks and block exposure to the internet.
- Rotate all administrative credentials on affected devices, since exploitation requires authenticated access that may have already been abused.
- Audit device configuration and firmware integrity for signs of tampering following the disclosure window.
Patch Information
No vendor advisory or firmware update has been referenced in the NVD entry at the time of publication. Operators should contact Arcadyan directly and monitor the Arcadyan 5G Solution Overview page for firmware updates addressing Meteor 2 CPE FG360 ETV2.10.
Workarounds
- Place FG360 devices behind an upstream firewall and permit management traffic only from a dedicated administrative subnet.
- Enforce multi-factor authentication or strong unique credentials on the management interface to raise the cost of gaining the privileges required for exploitation.
- Segment the network downstream of the CPE so that compromise of the device does not grant unrestricted access to internal systems.
# Example: restrict FG360 management access to a trusted admin subnet
# (apply on the upstream firewall, not the CPE itself)
iptables -A FORWARD -s 10.10.50.0/24 -d <FG360_MGMT_IP> -p tcp --dport 443 -j ACCEPT
iptables -A FORWARD -d <FG360_MGMT_IP> -p tcp --dport 443 -j DROP
iptables -A FORWARD -d <FG360_MGMT_IP> -p tcp --dport 80 -j DROP
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
