CVE-2020-15131

In SLP Validate (npm package slp-validate) before version 1.2.2, there is a vulnerability 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. This is fixed in version 1.2.2.

In SLP Validate (npm package slp-validate) before version 1.2.2, there is a vulnerability 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. This is fixed in version 1.2.2.

### 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.

### 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.

En SLP Validate (npm package slp-validate) versiones anteriores a 1.2.2, se presenta una vulnerabilidad en los resultados de comprobación de falsos-positivos para el tipo de transacción NFT1 Child Genesis. Una billetera SLP implementada inapropiadamente o un atacante oportunista podría crear un token secundario NFT1 aparentemente válido sin grabar ninguno de los tipos de token del Grupo NFT1 como son requeridos por la especificación NFT1. Esto es corregido en la versión 1.2.2