Hydra 的头部数据中的竞争期限可以在 Close 交易期间修改，允许恶意参与者自由修改竞争期限 (CVE-2023-42448)
CVE编号
CVE-2023-42448利用情况
暂无补丁情况
N/A披露时间
2023-10-05漏洞描述
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.解决建议
建议您更新当前系统或软件至最新版，完成漏洞的修复。受影响软件情况
| # | 类型 | 厂商 | 产品 | 版本 | 影响面 | ||||
| 1 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 运行在以下环境 | |||||||||
| 应用 | iohk | hydra | * | Up to (excluding) 0.13.0 | |||||
- 攻击路径 网络
- 攻击复杂度 低
- 权限要求 低
- 影响范围 未更改
- 用户交互 无
- 可用性 高
- 保密性 无
- 完整性 高
| CWE-ID | 漏洞类型 |
| CWE-1284 | Improper Validation of Specified Quantity in Input |
| CWE-20 | 输入验证不恰当 |
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