CVE-2023-42448
8.1 · HIGHOverview
CVE-2023-42448 is a high-severity vulnerability affecting iohk hydra. It was published on October 4, 2023 and has a CVSS 3.1 base score of 8.1 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
Hydra is the layer-two scalability solution for Cardano. Prior to version 0.13.0, the specification states that the contestation period in the datum of the UTxO at the head validator must stay unchanged as the state progresses from Open to Closed (Close transaction), but no such check appears to be performed in the `checkClose` function of the head validator. This would allow a malicious participant to modify the contestation deadline of the head to either allow them to fanout the head without giving another participant the chance to contest, or prevent any participant from ever redistributing the funds locked in the head via a fan-out. Version 0.13.0 contains a patch for this issue.
Remediation
Check the references section for vendor advisories and patches from iohk. Update hydra to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| iohk | hydra | >= 0, < 0.13.0 | Affected |
References
Frequently Asked Questions
What is CVE-2023-42448?
CVE-2023-42448 is a high-severity vulnerability affecting iohk hydra. It was published on October 4, 2023 and has a CVSS 3.1 base score of 8.1 (HIGH).
How severe is CVE-2023-42448?
This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2023-42448?
Check the references section for vendor advisories and patches from iohk. Update hydra to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2023-42448?
CyberStrike's AI-powered security agents can automatically detect CVE-2023-42448 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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