https://github.com/advanced-microcode-patching/shiva

A custom ELF linker/loader for installing ET_REL binary patches at runtime
https://github.com/advanced-microcode-patching/shiva

aarch64 elf microcode reverse-engineering

Last synced: 2 months ago
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A custom ELF linker/loader for installing ET_REL binary patches at runtime

• Host: GitHub
• URL: https://github.com/advanced-microcode-patching/shiva
• Owner: advanced-microcode-patching
• License: other
• Created: 2022-10-07T17:39:55.000Z (almost 2 years ago)
• Default Branch: main
• Last Pushed: 2024-03-23T21:04:39.000Z (7 months ago)
• Last Synced: 2024-06-19T07:02:48.918Z (4 months ago)
• Topics: aarch64, elf, microcode, reverse-engineering
• Language: C
• Homepage:
• Size: 20.4 MB
• Stars: 136
• Watchers: 8
• Forks: 12
• Open Issues: 14
• Metadata Files:
  • Readme: README-AMP.md
  • Changelog: CHANGELOG.md

Awesome Lists containing this project

README

        
# Shiva JIT micropatching engine

![My Image](shiva_logo.png)

This collection of files is from the DARPA Assured micropatching (AMP)

program. This README provides a basic description of the AMP program

and the overall manifest and description for each file.

## Assured Micropatching Program

The AMP program is a DARPA effort to develop technologies for advancing

the state of patching ELF binaries and verifying the stability of the

patch that has been applied. The AMP program can be found here

https://www.darpa.mil/program/assured-micropatching

DARPA is releasing these files in the public domain to stimulate further

research. Their release implies no obligation or desire to support additional

work in this space. The data is released as-is. DARPA makes no warranties as

to the correctness, accuracy, or usefulness of the released data. In fact,

since the data was produced by a research prototype, it is practically guaranteed

to be imperfect.

## Description of Shiva

Shiva is the product of AMP-phase-2 and advances the state of ELF binary

patching by introducing a custom ELF interpreter for loading and linking ELF

relocatable objects into the process image at runtime. Shiva aims to make patch

development a seamless process, fitting right into the existing ELF ABI

toolchain. Shiva supports Linux AArch64 environments currently.

## Support

OS: Linux

Architectures: AArch64

ELF binary support: AArch64 ELF PIE executable

## Github

https://github.com/advanced-microcode-patching/shiva

---- File descriptions

### README-AMP.md

This file

### File describing how to build and use Shiva

documentation/shiva_final_design.pdf: A document describing the internal design of Shiva

### libcapstone.a

A pre-built static library of the Capstone API

### modules/aarch64_patches/cfs_patch1/core-cpu1

A binary built from NASA cSF github repository to test patching against

### modules/aarch64/amp_challenge10/program_c 

An aarch64 binary taken from the beaglebone, as a patch challenge for AMP

### include/capstone

Header files from capstone disassembly API