CVE-2024-53290 Overview
CVE-2024-53290 is a command injection vulnerability in Dell ThinOS version 2408. The flaw stems from improper neutralization of special elements used in a command [CWE-77]. An unauthenticated attacker with local access to an affected thin client can inject and execute arbitrary commands. Successful exploitation leads to full compromise of confidentiality, integrity, and availability on the device.
Critical Impact
An unauthenticated local attacker can execute arbitrary commands on Dell ThinOS 2408 endpoints, potentially taking full control of the thin client and pivoting into connected virtual desktop environments.
Affected Products
- Dell ThinOS version 2408
- Dell thin client endpoints running the affected ThinOS build
- Virtual desktop infrastructure endpoints managed with the vulnerable firmware
Discovery Timeline
- 2024-12-11 - CVE-2024-53290 published to NVD
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2024-53290
Vulnerability Analysis
CVE-2024-53290 affects Dell ThinOS 2408, the firmware powering Dell Wyse thin clients. The vulnerability is categorized as Improper Neutralization of Special Elements used in a Command [CWE-77]. A component within ThinOS constructs and executes commands using attacker-influenced input without adequate sanitization of shell metacharacters or command separators.
Because the attack vector is local and requires no privileges or user interaction, any attacker able to interact with the ThinOS device — physically or through a locally accessible interface — can trigger command execution. The impact spans confidentiality, integrity, and availability, allowing an attacker to read sensitive session data, modify device configuration, or disrupt operations.
Thin clients frequently broker access to virtual desktop infrastructure (VDI) and enterprise applications. Compromise of the endpoint firmware provides a foothold for credential theft, session hijacking, and lateral movement into the backend VDI environment.
Root Cause
The root cause is missing or insufficient input neutralization in a ThinOS command-handling code path. Special characters such as ;, |, &, backticks, or $() are passed into a shell or command interpreter without being escaped or filtered. This allows attacker-supplied data to break out of the intended argument context and introduce additional commands.
Attack Vector
Exploitation requires local access to a device running Dell ThinOS 2408. No authentication and no user interaction are required. The attacker supplies crafted input to the vulnerable interface, and injected shell metacharacters cause the ThinOS command handler to execute the attacker's commands with the privileges of the affected component.
No public proof-of-concept exploit code is available for CVE-2024-53290. See the Dell Security Advisory DSA-2024-463 for authoritative technical details.
Detection Methods for CVE-2024-53290
Indicators of Compromise
- Unexpected child processes spawned from ThinOS system components on affected devices
- Presence of shell metacharacters such as ;, |, &, `, or $() in ThinOS logs or configuration inputs
- Unusual outbound network connections from a thin client to non-VDI destinations
- Configuration changes on ThinOS devices that were not initiated by the Wyse Management Suite administrator
Detection Strategies
- Inventory all ThinOS devices and identify those running version 2408 through Wyse Management Suite reporting
- Review ThinOS device logs for anomalous command execution patterns and unexpected process activity
- Correlate authentication events on VDI backends with thin client identity to detect misuse of compromised endpoints
Monitoring Recommendations
- Forward ThinOS and Wyse Management Suite logs to a centralized SIEM for retention and analysis
- Alert on new or unexpected processes and outbound connections originating from thin client subnets
- Monitor firmware version drift across the thin client fleet to detect unpatched or rolled-back devices
How to Mitigate CVE-2024-53290
Immediate Actions Required
- Identify all Dell ThinOS 2408 devices and prioritize them for firmware update per Dell's guidance
- Apply the fixed firmware version referenced in Dell Security Advisory DSA-2024-463
- Restrict physical and local access to thin clients in shared or public areas until patching is complete
- Review VDI session logs for signs of misuse tied to affected devices
Patch Information
Dell has released a fixed version of ThinOS addressing CVE-2024-53290. Refer to Dell Security Advisory DSA-2024-463 for the specific fixed release and update instructions. Deploy updates through Wyse Management Suite to ensure consistent coverage across the fleet.
Workarounds
- Limit physical access to ThinOS 2408 endpoints in high-traffic environments until firmware is updated
- Enforce kiosk-mode restrictions and disable non-essential local interfaces on affected devices
- Segment thin client networks from sensitive management and identity infrastructure to reduce blast radius
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
