SharpSphere - Atacando a Infraestrutura vSphere

Passo a passo completo e exemplos disponíveis aqui.

Histórico de Versões

1.0 - Lançamento Inicial
2.0 - Adicionado suporte para autenticação pass-through usando SSPI.
2.1 - Adicionado suporte para VMs Linux alvo com --linux, e adicionada a flag --verbose para listar usuários e grupos do vCenter

Introdução

SharpSphere dá aos red teamers a capacidade de interagir facilmente com os sistemas operacionais convidados de máquinas virtuais gerenciadas pelo vCenter. Ele usa a API vSphere Web Services e expõe as seguintes funções:

Comando & Controle - Em combinação com o C3 da F-Secure, o SharpSphere fornece C&C em VMs usando VMware Tools, sem exigir conectividade de rede direta com a VM alvo.
Execução de Código - Permite executar comandos arbitrários no SO convidado e retorna o resultado
Upload de Arquivo - Permite fazer upload de arquivos arbitrários para o SO convidado
Download de Arquivo - Permite baixar arquivos arbitrários do SO convidado
Listar VMs - Lista as VMs gerenciadas pelo vCenter que possuem VMware Tools em execução
Despejar Memória - Despejar e baixar a memória da VM, depois extrair manualmente as credenciais do LSASS offline usando WinDbg e Mimikatz (Guia)

SharpSphere suporta execução através do execute-assembly do Cobalt Strike.

Compilação

Versões compiladas podem ser encontradas aqui.

Uso

Módulos disponíveis:

SharpSphere.exe help


  list        List all VMs managed by this vCenter

  execute     Execute given command in target VM

  c2          Run C2 using C3's VMwareShareFile module

  upload      Upload file to target VM

  download    Download file from target VM

  help        Display more information on a specific command.

  version     Display version information.

Listar VMs:

SharpSphere.exe list --help 

  --url         Required. vCenter SDK URL, i.e. https://127.0.0.1/sdk

  --username    vCenter username, i.e. [email protected]. Defauls to executing user and pass-through
                authentication if not supplied.

  --password    vCenter password. Defaults to executing user and pass-through authentication if not supplied.

  --verbose     (Default: false) Prints verbose output about vCenter, inc. groups and users

  --help        Display this help screen.

  --version     Display version information.

Execução de código:

SharpSphere.exe execute --help

  --url              Required. vCenter SDK URL, i.e. https://127.0.0.1/sdk

  --username         vCenter username, i.e. [email protected]. Defaults to executing user and pass-through authentication if not supplied.

  --password         vCenter password. Defaults to executing user and pass-through authentication if not supplied.

  --ip               Required. Target VM IP address

  --guestusername    Username used to authenticate to the guest OS. Defaults to executing user and pass-through authentication if not supplied

  --guestpassword    Password used to authenticate to the guest OS. Defaults to executing user and pass-through authentication if not supplied

  --command          Required. Command to execute

  --output           (Default: false) Receive output from your command. Will create a temporary file in outputDir on the guest to save the output. This is then downloaded and printed to the console and the file
                     deleted

  --outputDir        When --output is provided, this is where to store the temporary file.

  --linux            (Default: false) Set if target VM is Linux

  --help             Display this help screen.

  --version          Display version information.

Comando & Controle:

SharpSphere.exe c2 --help

  --url              Required. vCenter SDK URL, i.e. https://127.0.0.1/sdk

  --username         vCenter username, i.e. [email protected]. Defaults to executing user and pass-through
                     authentication if not supplied.

  --password         vCenter password. Defaults to executing user and pass-through authentication if not supplied.

  --ip               Required. Target VM IP address

  --guestusername    Username used to authenticate to the guest OS. Defaults to executing user and pass-through
                     authentication if not supplied

  --guestpassword    Password used to authenticate to the guest OS. Defaults to executing user and pass-through
                     authentication if not supplied

  --command          Required. Command to execute

  --output           (Default: false) Receive output from your command. Will create a temporary file in outputDir on the
                     guest to save the output. This is then downloaded and printed to the console and the file deleted

  --outputDir        (Default: C:\Windows\Temp) When --output is provided, this is where to store the temporary file.

Upload de Arquivo:

SharpSphere.exe upload --help

  --url              Required. vCenter SDK URL, i.e. https://127.0.0.1/sdk

  --username         vCenter username, i.e. [email protected]. Defaults to executing user and pass-through authentication if not supplied.

  --password         vCenter password. Defaults to executing user and pass-through authentication if not supplied.

  --ip               Required. Target VM IP address

  --guestusername    Username used to authenticate to the guest OS. Defaults to executing user and pass-through authentication if not supplied

  --guestpassword    Password used to authenticate to the guest OS. Defaults to executing user and pass-through authentication if not supplied

  --source           Required. Full path to local file to upload

  --destination      Required. Full path to location where file should be uploaded

  --help             Display this help screen.

  --version          Display version information.

Download de Arquivo:

>SharpSphere.exe download --help

  --url              Required. vCenter SDK URL, i.e. https://127.0.0.1/sdk

  --username         vCenter username, i.e. [email protected]. Defaults to executing user and pass-through
                     authentication if not supplied.

  --password         vCenter password. Defaults to executing user and pass-through authentication if not supplied.

  --ip               Required. Target VM IP address

  --guestusername    Username used to authenticate to the guest OS. Defaults to executing user and pass-through
                     authentication if not supplied

  --guestpassword    Password used to authenticate to the guest OS. Defaults to executing user and pass-through
                     authentication if not supplied

  --source           Required. Full path in the guest to the file to upload

  --destination      Required. Full path to the local directory where the file should be downloaded

Despejando Memória:

>SharpSphere.exe dump --help
  --url            Required. vCenter SDK URL, i.e. https://127.0.0.1/sdk

  --username       vCenter username, i.e. [email protected]. Defaults to executing user and pass-through
                   authentication if not supplied.

  --password       vCenter password. Defaults to executing user and pass-through authentication if not supplied.

  --targetvm       Required. VM to snapshot

  --snapshot       (Default: false) WARNING: Creates and then deletes a snapshot. If unset, SharpSphere will only
                   extract memory from last existing snapshot, or none if no snapshots are available.

  --destination    Required. Full path to the local directory where the file should be downloaded

Funcionalidades Futuras

Adicionar suporte para SO convidado Linux
Incluir uma opção --verbose para listar VMs
Adicionar uma flag --quiet para não mencionar cada pacote transferido
Adicionar uma flag --testauth para confirmar que as credenciais do convidado são válidas

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