Authorization Bypass Affecting indy-node package, versions [0, 1.12.4)
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Test your applications- Snyk ID SNYK-PYTHON-INDYNODE-1054609
- published 27 Dec 2020
- disclosed 27 Dec 2020
- credit Unknown
Introduced: 27 Dec 2020
CVE-2020-11093 Open this link in a new tabHow to fix?
Upgrade indy-node to version 1.12.4 or higher.
Overview
indy-node is a package that implements server portion of a distributed ledger purpose-built for decentralized identity.
Affected versions of this package are vulnerable to Authorization Bypass. There is lack of signature verification on a specific transaction which enables an attacker to make certain unauthorized alterations to the ledger. Updating a DID with a nym transaction will be written to the ledger if neither ROLE or VERKEY are being changed, regardless of sender. A malicious DID with no particular role can ask an update for another DID (but cannot modify its verkey or role). This is bad because:
Any DID can write a nym transaction to the ledger (i.e., any DID can spam the ledger with nym transactions)
Any DID can change any other DID's alias
The update transaction modifies the ledger metadata associated with a DID.