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: simpleledger/slp-validate.js@3963cf9
• Unit tests have been added to assist validator implementations in avoiding this bug: simpleledger/slp-unit-test-data@8c942ea

For more information

If you have any questions or comments about this advisory please open an issue in the slp-validate repository.

References

• GHSA-6jmr-jfh7-xg3h
• simpleledger/slp-validate.js@3963cf9
• https://nvd.nist.gov/vuln/detail/CVE-2020-15131