Software Debug and Trace Archives | Page 10 of 19

Benchtop and remote debuggers for new Intel Xeon Scalable Processors

Alan Sguigna

July 11, 2017
2:42 pm

The news is out! Intel today announced its Intel Xeon Processor Scalable Family, codenamed Purley or Skylake-EP. ASSET of course has supported this silicon since its earliest beginnings, with the SourcePoint and ScanWorks Embedded Diagnostics products. Read the full press release here: ASSET releases new benchtop and remote debugging applications for Intel Xeon Processor Scalable Family.

Locks, Keys and Traps: Securing device JTAG interfaces

Alan Sguigna

July 10, 2017
5:57 pm

In two previous articles, I looked at the JTAG access port from a security perspective, and considered what exposure the choice of BMC operating system might have on a platform supporting At-Scale Debug. Now, let’s consider the root of all trust, the silicon itself, and see what options exist for locking it down.

Security of BMC Operating Systems

Alan Sguigna

July 2, 2017
1:58 pm

Given that they are network-accessible, BMCs present an attack surface. Which operating systems are hardened enough to be secure against malicious actors?

Securing JTAG-based At-Scale Debug

Alan Sguigna

June 18, 2017
4:14 pm

Security through obscurity is not a meaningful means to mitigate malevolent attacks. With the greater forensics capabilities offered by At-Scale Debug (ASD), how are platforms protected?

The MinnowBoard Chronicles Episode 18: Reverse-Engineering Code Execution

Alan Sguigna

June 11, 2017
1:55 pm

In my last article, I used Last Branch Record (LBR) Trace to manually capture UEFI program flow source and destination addresses. This week, I look at the associated instruction opcodes and mnemonics and try to figure out what is going on.

The Minnowboard Chronicles Episode 17: Using LBR Trace without Source Code

Alan Sguigna

May 26, 2017
2:24 pm

My curiosity got the better of me this week. I decided to play detective, and see what I can learn from LBR trace data if I pretend I don’t have access to the source code.

The Minnowboard Chronicles Episode 16: Delving into LBR Trace

Alan Sguigna

May 21, 2017
4:45 pm

This week, I decided to do a thorough analysis of how Last Branch Record (LBR) trace works, to see how useful it is in tracing back what might be the root cause of system failures.

UltraZed-EG Chronicles Episode 1 – First Look and Lessons Learned!

Larry Osborn

May 17, 2017
9:08 am

The Minnowboard Chronicles Episode 15: More UEFI Application Development in ‘C’

Alan Sguigna

May 14, 2017
2:55 pm

In Episode 12, I wrote a simple “Hello World!” application in ‘C’ using the built-in UEFI shell functions. In Episode 13, I failed in an attempt to re-write that application using standard ‘C’ library functions, such as printf(). I’ve learned a lot since then – here’s how to write more sophisticated programs.

The Minnowboard Chronicles Episode 14: Poking around SecCore in UEFI

Alan Sguigna

May 6, 2017
4:12 pm

This week, I poke around the code from the reset vector, in the heart of the CPU initialization firmware, and try to reverse-engineer what is going on.

Category: Software Debug and Trace

Benchtop and remote debuggers for new Intel Xeon Scalable Processors

Locks, Keys and Traps: Securing device JTAG interfaces

Security of BMC Operating Systems

Securing JTAG-based At-Scale Debug

The MinnowBoard Chronicles Episode 18: Reverse-Engineering Code Execution

The Minnowboard Chronicles Episode 17: Using LBR Trace without Source Code

The Minnowboard Chronicles Episode 16: Delving into LBR Trace

UltraZed-EG Chronicles Episode 1 – First Look and Lessons Learned!

The Minnowboard Chronicles Episode 15: More UEFI Application Development in ‘C’

The Minnowboard Chronicles Episode 14: Poking around SecCore in UEFI

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