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| preppedData.assets[normalizedAssetType][normalizedAssetName][ext] = | ||
| this.getStaticPath(path); | ||
| }); | ||
| preppedData.assets[normalizedAssetType][normalizedAssetName][ext] = |
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Code scanning / CodeQL
Prototype-polluting assignment
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AI over 1 year ago
To fix the problem, we need to ensure that the assetName and assetType values cannot be used to modify Object.prototype. This can be achieved by adding checks to prevent these values from being __proto__, constructor, or prototype. Additionally, we can use a Map object to store the assets, which is resilient to prototype pollution.
- Add checks to ensure
assetNameandassetTypeare not__proto__,constructor, orprototype. - Use a
Mapobject to store the assets instead of a plain object.
Suggested changeset
1
lib/index.js
| @@ -308,3 +308,3 @@ | ||
| const preppedData = { | ||
| assets: {}, | ||
| assets: new Map(), | ||
| additionalData: [], | ||
| @@ -357,7 +357,10 @@ | ||
|
|
||
| if (!preppedData.assets[normalizedAssetType]) { | ||
| preppedData.assets[normalizedAssetType] = {}; | ||
| if (normalizedAssetName === '__proto__' || normalizedAssetName === 'constructor' || normalizedAssetName === 'prototype') { | ||
| throw new Error(`Invalid assetName: ${normalizedAssetName}`); | ||
| } | ||
| if (!preppedData.assets.has(normalizedAssetType)) { | ||
| preppedData.assets.set(normalizedAssetType, new Map()); | ||
| } | ||
|
|
||
| preppedData.assets[normalizedAssetType][normalizedAssetName] = {}; | ||
| preppedData.assets.get(normalizedAssetType).set(normalizedAssetName, new Map()); | ||
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| @@ -372,4 +375,3 @@ | ||
|
|
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| preppedData.assets[normalizedAssetType][normalizedAssetName][ext] = | ||
| this.getStaticPath(path); | ||
| preppedData.assets.get(normalizedAssetType).get(normalizedAssetName).set(ext, this.getStaticPath(path)); | ||
| }); |
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# Conflicts: # lib/index.js
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