module

LINQPad Deserialization Exploit

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Disclosed
Dec 3, 2024
Created
May 13, 2025

Description

This module exploits a bug in LINQPad up to version 5.52.00. The bug is only exploitable in paid version of software. The core of a bug is cache file containing deserialized data, which attacker can overwrite with malicious payload. The data gets deserialized every time the app restarts.

Authors

msutovsky-r7 [email protected]
James Williams

Platform

Windows

References

Module Options

To display the available options, load the module within the Metasploit console and run the commands 'show options' or 'show advanced':


    msf > use exploit/windows/local/linqpad_deserialization_persistence
    msf exploit(linqpad_deserialization_persistence) > show targets
        ...targets...
    msf exploit(linqpad_deserialization_persistence) > set TARGET < target-id >
    msf exploit(linqpad_deserialization_persistence) > show options
        ...show and set options...
    msf exploit(linqpad_deserialization_persistence) > exploit
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