Vulnerability Information
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Vulnerability Title
Hydra's contestation period in head datum can be modified during Close transaction, allowing malicious participant to freely modify the contestation deadline
Vulnerability 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.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Vulnerability Type
输入验证不恰当
Vulnerability Title
Hydra 输入验证错误漏洞
Vulnerability Description
Hydra是一款渗透测试工具。 Hydra 0.13.0之前版本存在输入验证错误漏洞，该漏洞源于允许恶意参与者修改头部的竞争截止日期。
CVSS Information
N/A
Vulnerability Type
N/A