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Security Advisories: GSA_kwCzR0hTQS14OTk2LTdxaDktN2ZmN84AAu11

Hyperledger indy-node vulnerable to denial of service

Impact

An attacker can max out the number of client connections allowed by the ledger that was deployed using guidance provided in the indy-node repository, leaving the ledger unable to be used for its intended purpose.

The ledger content will not be impacted by the attack, and the ledger will resume servicing valid client requests after the attack.

Mitigations

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 previously provided enabled a low-cost DDoS attack.

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.

Acknowledgements

Thank you to Mirko Mollik at TrustCerts.de for finding and responsibly disclosing this issue.

Permalink: https://github.com/advisories/GHSA-x996-7qh9-7ff7
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS14OTk2LTdxaDktN2ZmN84AAu11
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: over 1 year ago
Updated: over 1 year ago


CVSS Score: 7.5
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Identifiers: GHSA-x996-7qh9-7ff7, CVE-2022-31006
References: Repository: https://github.com/hyperledger/indy-node
Blast Radius: 7.2

Affected Packages

pypi:indy-node
Dependent packages: 1
Dependent repositories: 9
Downloads: 2,826 last month
Affected Version Ranges: >= 0, <= 1.12.6
No known fixed version
All affected versions: 0.0.2, 0.0.3, 0.0.4, 0.0.12, 0.0.20, 0.0.21, 0.0.22, 0.0.23, 0.0.24, 0.0.25, 0.0.28, 0.0.30, 0.0.31, 0.0.32, 0.4.27, 1.0.28, 1.0.29, 1.1.1, 1.1.30, 1.1.31, 1.1.32, 1.1.33, 1.1.34, 1.1.35, 1.1.36, 1.1.37, 1.1.38, 1.1.39, 1.1.40, 1.1.41, 1.1.42, 1.1.43, 1.2.44, 1.2.45, 1.2.46, 1.2.47, 1.2.48, 1.2.49, 1.2.50, 1.3.51, 1.3.52, 1.3.53, 1.3.54, 1.3.55, 1.3.56, 1.3.57, 1.3.58, 1.3.59, 1.3.60, 1.3.61, 1.3.62, 1.4.63, 1.4.64, 1.4.65, 1.4.66, 1.5.67, 1.5.68, 1.6.69, 1.6.70, 1.6.71, 1.6.72, 1.6.73, 1.6.74, 1.6.75, 1.6.76, 1.6.77, 1.6.78, 1.6.79, 1.6.80, 1.6.81, 1.6.82, 1.6.83, 1.7.0, 1.7.1, 1.8.0, 1.8.1, 1.9.0, 1.9.1, 1.9.2, 1.10.0, 1.11.0, 1.12.0, 1.12.1, 1.12.2, 1.12.3, 1.12.4, 1.12.5, 1.12.6