NetSight
critical7.5

CVE-2020-15131

False-positive validity for NFT1 genesis transactions

Impact

### Impact In the npm package named "slp-validate", versions prior to 1.2.2 are vulnerable to false-positive validation outcomes for the NFT1 Child Genesis transaction type. A poorly implemented SLP wallet or opportunistic attacker could create a seemingly valid NFT1 child token without burning any of the NFT1 Group token type as is required by the NFT1 specification. ### Patches npm package "slp-validate" has been patched and is published and tagged as version 1.2.2. ### Workarounds Upgrade to slp-validate 1.2.2. ### References * Package location: https://www.npmjs.com/package/slp-validate * SLP NFT1 spec: https://slp.dev/specs/slp-nft-1/#nft1-protocol-requirements * Git commit hash fixing this issue: https://github.com/simpleledger/slp-validate.js/commit/3963cf914afae69084059b82483da916d97af65c * Unit tests have been added to assist validator implementations in avoiding this bug: https://github.com/simpleledger/slp-unit-test-data/commit/8c942eacfae12686dcf1f3366321445a4fba73e7 ### For more information If you have any questions or comments about this advisory please open an issue in the [slp-validate](https://github.com/simpleledger/slp-validate.js/issues) repository.

Affected packages

EcosystemPackageAffectedFixed in
npmslp-validate< 1.2.21.2.2

Affected products

VendorProductAffected versions
SimpleledgerSlp-Validate
before 1.2.2

Weakness classification

References