module

JetBrains TeamCity Unauthenticated Remote Code Execution

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Disclosed
2024-03-04
Created
2024-03-14

Description

This module exploits an authentication bypass vulnerability in JetBrains TeamCity. An unauthenticated
attacker can leverage this to access the REST API and create a new administrator access token. This token
can be used to upload a plugin which contains a Metasploit payload, allowing the attacker to achieve
unauthenticated RCE on the target TeamCity server. On older versions of TeamCity, access tokens do not exist
so the exploit will instead create a new administrator account before uploading a plugin. Older version of
TeamCity have a debug endpoint (/app/rest/debug/process) that allows for arbitrary commands to be executed,
however recent version of TeamCity no longer ship this endpoint, hence why a plugin is leveraged for code
execution instead, as this is supported on all versions tested.

Author

sfewer-r7

Platform

Java,Linux,Unix,Windows

Architectures

java, cmd

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/multi/http/jetbrains_teamcity_rce_cve_2024_27198
    msf exploit(jetbrains_teamcity_rce_cve_2024_27198) > show targets
        ...targets...
    msf exploit(jetbrains_teamcity_rce_cve_2024_27198) > set TARGET < target-id >
    msf exploit(jetbrains_teamcity_rce_cve_2024_27198) > show options
        ...show and set options...
    msf exploit(jetbrains_teamcity_rce_cve_2024_27198) > exploit
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