My CPU has an HTTP server? But why?
https://software.intel.com/en-us/node/632310
I have multiple machines with AMT and I'm actively using it every day. Some get patches, some won't because they're gen 3 CPUs or lower. Luckily I can be reasonably confident that the local network is secure so the bug isn't exploitable. This time.
I'm sure hoping AMD does better with their support of the PSP.
From the article: vulnerability enables full-blown remote code execution in the AMT process of the Management Engine.
From Intel: https://www.intel.com/content/www/us/en/security-center/advi...
Buffer overflow in HTTP handler in Intel® Active Management Technology in Intel Converged Security Manageability Engine
- The CVEs are about AMT portion only not the base IME
- Not all affected hardware will be patched (based on age)
- AMT can be disabled (and is by default)
- IME/AMT run on a croprocessor on the motherboard - not the CPU itself
- AMT runs an HTTP server for IPMI abilities
The devices which have the feature enabled are probably business devices and the feature is used to manage them. Business devices are good value targets, I guess.
Edit : I guess those devices will probably receive the fix, since they are managed
IPMI doesn't use HTTP.
AMT/vPro is apparently not for servers, and likely operates on the system NIC. The first rule of out-of-band management interfaces should be "use a physically-separate interface", which is unfortunately frequently broken (by one vendor when the procurement specified a separate interface).
>"I got another clue when your engineers began asking me to make a number of changes to MINIX, for example, making the memory footprint smaller and adding #ifdefs around pieces of code so they could be statically disabled by setting flags in the main configuration file."
Why would Intel ask Tannenbaum to make changes for them? Doesn't intel have unlimited resources?