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Intersil (Boa) HTTPd Basic Authentication Password Reset

The Intersil extension in the Boa HTTP Server 0.93.x - 0.94.11 allows basic authentication bypass when the user string is greater than 127 bytes long. The long string causes the password to be overwritten in memory, which enables the attacker to reset the password. In addition, the malicious attempt also may cause a denial-of-service condition. Please note that you must set the request URI to the directory that requires basic authentication in order to work properly.

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Module Name



  • Luca "ikki" Carettoni <luca.carettoni [at]>
  • Claudio "paper" Merloni <claudio.merloni [at]>
  • Max Dietz <maxwell.r.dietz [at]>




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 auxiliary/admin/http/intersil_pass_reset msf auxiliary(intersil_pass_reset) > show actions ...actions... msf auxiliary(intersil_pass_reset) > set ACTION <action-name> msf auxiliary(intersil_pass_reset) > show options and set options... msf auxiliary(intersil_pass_reset) > run