CVE-2022-31006: Hyperledger Indy DOS vulnerability
First published: Fri Sep 09 2022(Updated: )
indy-node is the server portion of Hyperledger Indy, a distributed ledger purpose-built for decentralized identity. In vulnerable versions of indy-node, an attacker can max out the number of client connections allowed by the ledger, leaving the ledger unable to be used for its intended purpose. However, the ledger content will not be impacted and the ledger will resume functioning after the attack. This attack exploits the trade-off between resilience and availability. Any protection against abusive client connections will also prevent the network being accessed by certain legitimate users. As a result, validator nodes must tune their firewall rules to ensure the right trade-off for their network's expected users. The guidance to network operators for the use of firewall rules in the deployment of Indy networks has been modified to better protect against denial of service attacks by increasing the cost and complexity in mounting such attacks. The mitigation for this vulnerability is not in the Hyperledger Indy code per se, but rather in the individual deployments of Indy. The mitigations should be applied to all deployments of Indy, and are not related to a particular release.
Credit: security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linuxfoundation Indy-node | <=1.12.6 | |
| Linuxfoundation Indy-node | =1.13.2-rc1 |
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Reference Links
Frequently Asked Questions
What is CVE-2022-31006?
CVE-2022-31006 is a vulnerability in the indy-node server portion of Hyperledger Indy that allows an attacker to max out the number of client connections allowed by the ledger, rendering it unusable.
What is the severity of CVE-2022-31006?
CVE-2022-31006 has a severity score of 7.5, which is considered high.
How does CVE-2022-31006 affect Linuxfoundation Indy-node?
Versions up to and including 1.12.6 as well as version 1.13.2-rc1 of Linuxfoundation Indy-node are affected by CVE-2022-31006.
How can an attacker exploit CVE-2022-31006?
An attacker can exploit CVE-2022-31006 by overwhelming the indy-node server with client connections, causing it to become unresponsive.
Is there a fix available for CVE-2022-31006?
Yes, the fix for CVE-2022-31006 can be found in the GitHub commit (https://github.com/hyperledger/indy-node/commit/53a2a1bf1a26cb8ba710fd6adc8bcf275186a4b3).
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- canonical/linuxfoundation indy-node
- version/linuxfoundation indy-node/1.12.6
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