module

SPIP BigUp Plugin Unauthenticated RCE

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Disclosed
2024-09-06
Created
2024-09-11

Description

This module exploits a Remote Code Execution vulnerability in the BigUp plugin of SPIP.
The vulnerability lies in the `lister_fichiers_par_champs` function, which is triggered
when the `bigup_retrouver_fichiers` parameter is set to any value. By exploiting the improper
handling of multipart form data in file uploads, an attacker can inject and execute
arbitrary PHP code on the target server.

This critical vulnerability affects all versions of SPIP from 4.0 up to and including
4.3.1, 4.2.15, and 4.1.17. It allows unauthenticated users to execute arbitrary code
remotely via the public interface. The vulnerability has been patched in versions
4.3.2, 4.2.16, and 4.1.18.

Authors

Vozec
Laluka
Julien Voisin
Valentin Lobstein

Platform

Linux,PHP,Unix,Windows

Architectures

ARCH_PHP, ARCH_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/spip_bigup_unauth_rce
    msf exploit(spip_bigup_unauth_rce) > show targets
        ...targets...
    msf exploit(spip_bigup_unauth_rce) > set TARGET < target-id >
    msf exploit(spip_bigup_unauth_rce) > show options
        ...show and set options...
    msf exploit(spip_bigup_unauth_rce) > exploit
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