Intel Management Engine Authentication Bypass (INTEL-SA-00075) (remote check)
Critical Nessus Plugin ID 97999
SynopsisThe remote host is affected by an authentication bypass vulnerability.
DescriptionThe Intel Management Engine on the remote host has Active Management Technology (AMT) enabled, and is affected by an authentication bypass vulnerability. An unauthenticated, remote attacker can exploit this, via a NULL HTTP Digest response, to bypass authentication.
Note that the vulnerability is only exploitable remotely if either Active Management Technology (AMT), Intel Standard Manageability (ISM), or Small Business Technology (SBT) is enabled. However, a local attacker can still exploit the vulnerability even if these components are disabled by simply re-enabling the components.
SolutionContact your system OEM for updated firmware per the vendor advisory.
Alternatively, apply these mitigations per the INTEL-SA-00075 mitigation guide :
- Unprovision Intel manageability SKU clients.
- Disable or remove the Local Manageability Service (LMS).
- Configure local manageability configuration restrictions.