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The kDisableNodeOptionsEnv option can be work around by using NODE_REPL_EXTERNAL_MODULE env #51227

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zcbenz opened this issue Dec 20, 2023 · 3 comments · Fixed by #52905
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The kDisableNodeOptionsEnv option can be work around by using NODE_REPL_EXTERNAL_MODULE env #51227

zcbenz opened this issue Dec 20, 2023 · 3 comments · Fixed by #52905
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security Issues and PRs related to security.

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@zcbenz
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zcbenz commented Dec 20, 2023

Node has an kDisableNodeOptionsEnv embedder flag that disables NODE_OPTIONS env to avoid injecting external code into apps, however it can be bypassed by using the NODE_REPL_EXTERNAL_MODULE env as reported by electron/electron#40770.

I understand kDisableNodeOptionsEnv only means to disable NODE_OPTIONS env, but if we don't also disable NODE_REPL_EXTERNAL_MODULE the protection would become meaningless.

I think we have 2 options to fix this:

  1. Disable NODE_REPL_EXTERNAL_MODULE env when kDisableNodeOptionsEnv is used.
  2. Deprecate kDisableNodeOptionsEnv and add a new flag that disables all possible ways to inject code.

I wonder which one would be preferred by Node team. /cc @addaleax @joyeecheung @bnoordhuis
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@RedYetiDev RedYetiDev added the dotenv Issues and PRs related to .env file parsing label Apr 26, 2024
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RedYetiDev commented Apr 26, 2024 •
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Dotenv isn't the correct label (no dotenv file), buts AFAIK the closest to env variables

@RedYetiDev RedYetiDev added the security Issues and PRs related to security. label Apr 26, 2024
@RafaelGSS RafaelGSS removed the dotenv Issues and PRs related to .env file parsing label Apr 29, 2024
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RafaelGSS commented Apr 29, 2024 •
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@zcbenz While the first option is trivial I assume it will be a breaking change for all users that rely on the current behavior. I believe a new flag should be a safer approach. Honestly, I'm fine with both options.

cc: @nodejs/tsc

@RafaelGSS RafaelGSS mentioned this issue May 8, 2024
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nodejs-github-bot pushed a commit that referenced this issue May 23, 2024
@RafaelGSS
src: fix external module env and kDisableNodeOptionsEnv
b9ad94b 
PR-URL: #52905
Fixes: #51227
Reviewed-By: Rich Trott <[email protected]>
Reviewed-By: Joyee Cheung <[email protected]>
Reviewed-By: Juan José Arboleda <[email protected]>
targos pushed a commit that referenced this issue Jun 1, 2024
@RafaelGSS @targos
src: fix external module env and kDisableNodeOptionsEnv
7aa9519 
PR-URL: #52905
Fixes: #51227
Reviewed-By: Rich Trott <[email protected]>
Reviewed-By: Joyee Cheung <[email protected]>
Reviewed-By: Juan José Arboleda <[email protected]>
EliphazBouye pushed a commit to EliphazBouye/node that referenced this issue Jun 20, 2024
@RafaelGSS @EliphazBouye
src: fix external module env and kDisableNodeOptionsEnv
8691502 
PR-URL: nodejs#52905
Fixes: nodejs#51227
Reviewed-By: Rich Trott <[email protected]>
Reviewed-By: Joyee Cheung <[email protected]>
Reviewed-By: Juan José Arboleda <[email protected]>
bmeck pushed a commit to bmeck/node that referenced this issue Jun 22, 2024
@RafaelGSS @bmeck
src: fix external module env and kDisableNodeOptionsEnv
ea6d0ec 
PR-URL: nodejs#52905
Fixes: nodejs#51227
Reviewed-By: Rich Trott <[email protected]>
Reviewed-By: Joyee Cheung <[email protected]>
Reviewed-By: Juan José Arboleda <[email protected]>
marco-ippolito pushed a commit that referenced this issue Jul 19, 2024
@RafaelGSS @marco-ippolito
src: fix external module env and kDisableNodeOptionsEnv
a5b2928 
PR-URL: #52905
Fixes: #51227
Reviewed-By: Rich Trott <[email protected]>
Reviewed-By: Joyee Cheung <[email protected]>
Reviewed-By: Juan José Arboleda <[email protected]>
marco-ippolito pushed a commit that referenced this issue Jul 19, 2024
@RafaelGSS @marco-ippolito
src: fix external module env and kDisableNodeOptionsEnv
3b79e9c 
PR-URL: #52905
Fixes: #51227
Reviewed-By: Rich Trott <[email protected]>
Reviewed-By: Joyee Cheung <[email protected]>
Reviewed-By: Juan José Arboleda <[email protected]>
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src: sync NODE_REPL_EXTERNAL_MODULE and kDisableNodeOptionsEnv RafaelGSS/node
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@zcbenz @RafaelGSS @RedYetiDev