module

Asterisk AMI Originate Authenticated RCE

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Disclosed
2024-08-08
Created
2024-12-02

Description

On Asterisk, prior to versions 18.24.2, 20.9.2, and 21.4.2 and certified-asterisk
versions 18.9-cert11 and 20.7-cert2, an AMI user with 'write=originate' may change
all configuration files in the '/etc/asterisk/' directory. Writing a new extension
can be created which performs a system command to achieve RCE as the asterisk service
user (typically asterisk).
Default parking lot in FreePBX is called "Default lot" on the website interface,
however its actually 'parkedcalls'.
Tested against Asterisk 19.8.0 and 18.16.0 on Freepbx SNG7-PBX16-64bit-2302-1.

Authors

Brendan Coles bcoles@gmail.com
h00die
NielsGaljaard

Platform

Unix

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/linux/misc/asterisk_ami_originate_auth_rce
    msf exploit(asterisk_ami_originate_auth_rce) > show targets
        ...targets...
    msf exploit(asterisk_ami_originate_auth_rce) > set TARGET < target-id >
    msf exploit(asterisk_ami_originate_auth_rce) > show options
        ...show and set options...
    msf exploit(asterisk_ami_originate_auth_rce) > exploit
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