Case study

es4308cfg: reconstructing the Edgecore ES4308-PoE config format

es4308cfg reconstructs the Edgecore ES4308-PoE switch's proprietary NVRAM configuration format from differential exports. The repository documents TLV framing, checksums, obfuscated strings and port-bit permutations, and provides Rust and Python codecs, a Kaitai specification and sanitized fixtures.

Targets: Firmware
Category: Independent reconstruction cases
Relationship: Independent reconstruction project
Sources reviewed: 2026-11-06
Evidence class: C2 code & docs, no demo or download

Stars: 0
Last commit: 2026-07-10
Language: Python
License (GitHub): MIT

GitHub data as of 2026-11-10

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Evidence

Observed: Code, documentation and a demo observed; no download method found.
Checked: 2026-11-08

How evidence classes are assigned

Requirements & limits

Prerequisites: Python 3.9 or later for the Python tool; Rust and Cargo for the Rust codec.
Testing evidence: The author reports validation against one ES4308-PoE unit; other units and firmware revisions may differ.
Limits: Live write and restore code is quarantined after an NVRAM corruption incident.
License: MIT License.

Cite

BibTeX

@misc{es4308cfg-case,
  title = {{es4308cfg: reconstructing the Edgecore ES4308-PoE config format}},
  howpublished = {\url{https://github.com/dlorent/es4308cfg}},
  url = {https://github.com/dlorent/es4308cfg},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/es4308cfg-case/}}
}

Plain text

es4308cfg: reconstructing the Edgecore ES4308-PoE config format. https://github.com/dlorent/es4308cfg (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/es4308cfg-case/

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About this entry

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Primary sources

README.md GitHub · dlorent/es4308cfg · Revision 3435d03
es4308cfg/docs/RE-NOTES.md GitHub · dlorent/es4308cfg · Revision 3435d03