Attack Chain

1. An attacker identifies a vulnerable instance of A-G-U-P-T-A wireshark-mcp.
2. The attacker crafts a malicious request targeting the quick_capture function within the pyshark_mcp.py file.
3. The crafted request includes an OS command injection payload within the parameters of the quick_capture function.
4. The wireshark-mcp application processes the malicious request without proper sanitization or input validation.
5. The injected OS command is executed by the system with the privileges of the wireshark-mcp application.
6. The attacker gains the ability to perform actions such as reading sensitive files, modifying system configurations, or establishing a reverse shell.
7. The attacker pivots within the network, leveraging the compromised system to target other internal resources.

Impact

Successful exploitation of CVE-2026-7785 can lead to complete system compromise, data breaches, and lateral movement within the affected network. The absence of versioning due to the rolling release nature of wireshark-mcp increases the difficulty of identifying and patching vulnerable instances. Given the availability of public exploits, organizations running this software are at significant risk.

Recommendation

• Inspect network traffic for suspicious POST requests containing shell commands targeting the quick_capture function in pyshark_mcp.py using the provided Sigma rule.
• Monitor process creation events for unexpected processes spawned by the wireshark-mcp application, based on the provided Sigma rule.
• Block network connections originating from systems where exploitation is suspected, based on the IOC edaf604416fbc94a201b4043092d4a1b09a12275.
• Implement robust input validation and sanitization mechanisms within the wireshark-mcp application to prevent command injection attacks.