Stcube and log4j

[Uwe Bonnes]

Sorry, somehow I managed to drop the question:

During startup, stcube prints a message about log4j. There are known vulnrerabilities about log4j. How does this impact stcube and the host system, stcube runs on?

[TDK]

Apparently the version used is so out of date that it's "safe". Not sure I'd trust that answer.

See: https://community.st.com/s/question/0D53W00001FmB6NSAV/i-am-using-cubemx-there-is-a-significant-security-vulnerability-of-apache-log4j-on-net-cubemx-has-this-issue-if-yes-do-you-have-any-fix-solution

[waclawek.jan]

I wonder how exactly could an outside attacker achieve an entry to be inserted to CubeIDE/ CubeWhatever's log...

Do these programs have open listening IP ports?

JW

[TDK]

It will try to format the log message and if you have certain patterns in the message being logged, it will load an arbitrary file from a web address to do so. So if you can control what is being logged, perhaps if the program logs user input, you're toast.

It is amazing that a program ostensibly designed to log events in a program has gone through so much feature creep that it is even possible for this to happen. I'm not surprised it happened in Java.

I find it all quite interesting.

https://www.trendmicro.com/en_us/research/21/l/patch-now-apache-log4j-vulnerability-called-log4shell-being-acti.html

[waclawek.jan]

I understand the mechanism of the bug. My question was towards how

> if you can control what is being logged,

can happen in the particular case of Cuben.

JW

[waclawek.jan · Accepted solution]

https://community.st.com/s/question/0D53W00001Fp7edSAB/stm32cube-tools-and-log4j

[Piranha]

> It is amazing that a program ostensibly designed to log events in a program has gone through so much feature creep

That is also the past and future of the CubeMX. It started as a Microcontroller eXplorer and helped managing pins and clocks. Then the "initialization code generator" was added. Officially it's still called like that! But in reality it has gone down the full - "I'm clicking a project together completely in CubeMX. Something doesn't work. I no learn C. Help!!! Thank you, ser!" - mode. And even sane users want more and more customization. Initialization order, priorities, enable/disable by default etc. Eventually it will mimic all of the HAL in a million configurations, it will require the same amount of knowledge and be more complex to configure than writing a code, and the project will collapse under it's own weight.