CVE-2020-11093
What it is
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.
At a glance
- Exploitability
- Can be exploited over the network without logging in. High risk of data tampering.
- Exploit odds
- 1.2% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 1.2% in the next 30 days (EPSS).
- Severity: 7.5 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 1.2% · EPSS, next 30 days
- Weakness
- CWE-347
- Record status
- Modified
Affected
- Linuxfoundation indy-node < 1.12.4
Attack profile CVSS 3.1 · 7.5
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- High
- Availability
- None
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2020-11093.md and follow it. Check whether this project is affected by CVE-2020-11093. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://github.com/hyperledger/indy-node/commit/55056f22c83b7c3520488b615e1577e0f895d75a
- https://github.com/hyperledger/indy-node/security/advisories/GHSA-wh2w-39f4-rpv2
- https://github.com/hyperledger/indy-node/commit/55056f22c83b7c3520488b615e1577e0f895d75a
- https://github.com/hyperledger/indy-node/security/advisories/GHSA-wh2w-39f4-rpv2
References
- https://github.com/hyperledger/indy-node/blob/master/CHANGELOG.md#1124
- https://github.com/hyperledger/indy-node/blob/master/docs/source/auth_rules.md
- https://github.com/hyperledger/indy-node/commit/55056f22c83b7c3520488b615e1577e0f895d75a
- https://github.com/hyperledger/indy-node/security/advisories/GHSA-wh2w-39f4-rpv2
- https://github.com/hyperledger/indy-node/blob/master/CHANGELOG.md#1124
- https://github.com/hyperledger/indy-node/blob/master/docs/source/auth_rules.md
- https://github.com/hyperledger/indy-node/commit/55056f22c83b7c3520488b615e1577e0f895d75a
- https://github.com/hyperledger/indy-node/security/advisories/GHSA-wh2w-39f4-rpv2