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util: refactor to use primordials in debuglog #38756

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util: refactor to use primordials in debuglog #38756

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@marsonya marsonya commented May 21, 2021

Replace code that's vulnerable to Prototype Pollution with Primordials.

@github-actions github-actions bot added needs-ci PRs that need a full CI run. util Issues and PRs related to the built-in util module. labels May 21, 2021
RaisinTen
RaisinTen reviewed May 21, 2021
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aduh95
aduh95 reviewed May 21, 2021
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lib/internal/util/debuglog.js
.replace(/,/g, '$|^')
.toUpperCase();
debugEnv = StringPrototypeReplace(debugEnv, /[|\\{}()[\]^$+?.]/g, '\\$&');
debugEnv = StringPrototypeReplace(debugEnv, /\*/g, '.*');
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I think we should wait for V8 9.1 to land on master and use StringPrototypeReplaceAll here instead, but non blocking.

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@marsonya marsonya May 21, 2021

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That's correct. StringPrototypeReplaceAll would be the ideal thing here.
Do we proceed with the changes in this PR or close it for now?

@aduh95 aduh95 added the needs-benchmark-ci PR that need a benchmark CI run. label May 21, 2021
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util: refactor to use primordials in debuglog
c975b1d 
Replace code that's vulnerable to Prototype Pollution with Primordials.
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aduh95 commented May 25, 2021

AFAICT, this part of code is run before any user code, so it's not at risk of prototype pollution. Maybe we could simply add a comment that states that prototype pollution is not a concern for this function. wdyt?

@aduh95 aduh95 mentioned this pull request May 29, 2021
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aduh95 commented May 29, 2021

I've opened a concurrent PR (#38838) to implement my suggestion, adding the blocked label to make sure this doesn't land until @marsonya has time to review and decide which should we land.

@aduh95 aduh95 added the blocked PRs that are blocked by other issues or PRs. label May 29, 2021
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marsonya commented May 29, 2021

I've opened a concurrent PR (#38838) to implement my suggestion, adding the blocked label to make sure this doesn't land until @marsonya has time to review and decide which should we land.

Thanks for implementing the new PR. Your suggestion is the right solution to go ahead with.
I am going ahead and closing this PR in favour of #38838.

@marsonya marsonya closed this May 29, 2021
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