CVE - CVE-2020-11093

CVE-ID
CVE-2020-11093	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
Hyperledger Indy Node is the server portion of a distributed ledger purpose-built for decentralized identity. In Hyperledger Indy before version 1.12.4, 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 1) Any DID can write a nym transaction to the ledger (i.e., any DID can spam the ledger with nym transactions), 2) Any DID can change any other DID's alias, 3) The update transaction modifies the ledger metadata associated with a DID.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
CONFIRM:https://github.com/hyperledger/indy-node/security/advisories/GHSA-wh2w-39f4-rpv2 URL:https://github.com/hyperledger/indy-node/security/advisories/GHSA-wh2w-39f4-rpv2 MISC:https://github.com/hyperledger/indy-node/blob/master/CHANGELOG.md#1124 URL:https://github.com/hyperledger/indy-node/blob/master/CHANGELOG.md#1124 MISC:https://github.com/hyperledger/indy-node/blob/master/docs/source/auth_rules.md URL:https://github.com/hyperledger/indy-node/blob/master/docs/source/auth_rules.md MISC:https://github.com/hyperledger/indy-node/commit/55056f22c83b7c3520488b615e1577e0f895d75a URL:https://github.com/hyperledger/indy-node/commit/55056f22c83b7c3520488b615e1577e0f895d75a
Assigning CNA
GitHub (maintainer security advisories)
Date Record Created
20200330	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20200330)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
This is an record on the CVE List, which provides common identifiers for publicly known cybersecurity vulnerabilities.
Search CVE Using Keywords: You can also search by reference using the CVE Reference Maps.
For More Information: CVE Request Web Form (select "Other" from dropdown)