CVE-2020-11093

描述

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.

如何修補 CVE-2020-11093

要修補 CVE-2020-11093,請將受影響套件升級到下列已修補版本。

• —升級至 1.12.4 或更新版本

CVE-2020-11093 正在被利用嗎?

低 — EPSS 為 0.9%,目前沒有觀察到大規模利用活動。

受影響套件(1)

• from 0, < 1.12.4

CVSS 分數

參考連結(7)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2020-11093
• PATCHgithub.com/hyperledger/indy-node
• WEBgithub.com/hyperledger/indy-node/blob/master/CHANGELOG.md#1124
• WEBgithub.com/hyperledger/indy-node/blob/master/docs/source/auth_rules.md