False-positive validity for NFT1 genesis transactions

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 repository.