module

OpenSSL Server-Side ChangeCipherSpec Injection Scanner

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Disclosed
2014-06-05
Created
2018-05-30

Description

This module checks for the OpenSSL ChangeCipherSpec (CCS)
Injection vulnerability. The problem exists in the handling of early
CCS messages during session negotiation. Vulnerable installations of OpenSSL accepts
them, while later implementations do not. If successful, an attacker can leverage this
vulnerability to perform a man-in-the-middle (MITM) attack by downgrading the cipher spec
between a client and server. This issue was first reported in early June, 2014.

Authors

Masashi Kikuchi
Craig Young CYoung@tripwire.com
juan vazquez juan.vazquez@metasploit.com

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 auxiliary/scanner/ssl/openssl_ccs
    msf auxiliary(openssl_ccs) > show actions
        ...actions...
    msf auxiliary(openssl_ccs) > set ACTION < action-name >
    msf auxiliary(openssl_ccs) > show options
        ...show and set options...
    msf auxiliary(openssl_ccs) > run
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